Note: Monoline Carriers shown in all capital letters.
| Company | Loss Cost Multiplier | Effective Date | Previous LCM | Group Funded |
| Acceptance Indemnity Insurance Co. | 1.27 | April 1, 2001 | 1.23 | N |
| Accident Fund General Insurance Co. | 1.47 | January 1, 2008 | 1.54 | N |
| Accident Fund Insurance Company of America | 1.28 | January 1, 2008 | 1.30 | N |
| Accident Fund National Insurance Co. | 1.15 | January 1, 2008 | 1.210 | N |
| Ace American Insurance Company | 1.30 | February 1, 1997 | N/A | N |
| ACE Fire Underwriters insurance Co. | 1.28 | December 1, 2007 | 1.17 | N |
| ACE Indemnity Co. | 1.43 | February 1, 1997 | 1.529 | N |
| ACE Insurance Co. | 1.3 | February 1, 1997 | 1.39 | N |
| ACE Property & Casualty Insurance Co. | 1.420 | January 1, 2007 | 1.495 | N |
| ACIG Insurance Co. | 1.21 | January 1, 2008 | 1.22 | N |
| ACUITY, a Mutual Insurance Company | 1.401 | January 1, 2006 | N/A | N |
| Addison Insurance Company | 1.56 | January 1, 2006 | 1.60 | N |
| Advantage Workers Compensation Ins. Co. | 1.4 | January 1, 2001 | N/A | N |
| Agricultural Insurance Co. | 1.05 | January 1, 2000 | 1.43 | N |
| AIG Casualty Company | 1.556 | April 1, 2004 | 1.415 | N |
| AIU Insurance Co. | 1.371 | September 1, 2004 | 1.331 | N |
| Alaska National Insurance Co. | 1.34 | May 8, 1998 | N/A | N |
| Alaska Pacific Assurance Co. | 1.526 | January 1, 1996 | N/A | N |
| Alea North American Insurance Co. | 1.53 | March 1, 2006 | 1.5 | N |
| Allianz Insurance Co. | 1.54 | November 1, 1995 | N/A | N |
| Allied Mutual Insurance Co. | 1.26 | April 1, 1998 | 1.35 | N |
| Allied World Reinsurance Company | 1.049 | October 1, 1998 | N/A | N |
| Allstate Indemnity Co. | 1.404 | November 21, 1995 | N/A | N |
| Allstate Insurance Co. | 1.404 | November 21, 1995 | N/A | N |
| AMCO Insurance Co. | 1.20 | January 1, 2008 | 1.270 | N |
| AmCOMP Assurance Corp. | 1.30 | January 1, 2008 | N/A | N |
| AmCOMP Preferred Insurance Company | 1.48 | January 1, 2008 | N/A | N |
| American & Foreign Insurance Co. | 1.582 | January 1, 2003 | 1.523 | N |
| American Alliance Insurance Co. | 1.24 | January 1, 2002 | 1.523 | N |
| American Alternative Insurance Co. | 1.630 | November 19, 2004 | 1.355 | N |
| American Automobile Insurance Co. | 1.583 | January 1, 2006 | 1.534 | N |
| American Casualty Co. of Reading Pennsylvania | 1.10 | November 1, 2007 | 1.20 | N |
| AMERICAN COMPENSATION INSURANCE CO. | 1.2 | March 1, 2006 | 1.6 | N |
| American Economy Insurance Co. | 1.280 | November 1, 2006 | 1.45 | N |
| American Employers Insurance Co. | 1.225 | September 1, 2001 | 1.15 | N |
| American Family Mutual Insurance Co. | 1.45 | January 1, 2008 | 1.53 | N |
| American Fire & Casualty Co. | 1.2 | July 1, 2005 | 1.4 | N |
| American Fuji Fire & Marine Insurance Co. | 1.53 | March 1, 2005 | N/A | N |
| American Guarantee & Liability Insurance Co. | 1.41 | January 1, 2005 | 1.484 | N |
| American Hardware Mutual Insurance Co. | 1.355 | January 1, 1996 | N/A | N |
| American Home Assurance Co. | 1.613 | September 1, 2004 | 1.556 | N |
| American Insurance Co. | 1.583 | January 1, 2006 | 1.534 | N |
| American International South Insurance Co. | 1.210 | September 1, 2004 | 1.175 | N |
| American Interstate Insurance Co. | 1.4 | July 15, 2002 | 1.25 | N |
| American Manufacturers Mutual | 1.42 | January 1, 2002 | 1.257 | N |
| American Motorists Insurance Co. | 1.53 | January 1, 2002 | 1.41 | N |
| American National Property & Casualty Co. | 1.254 | July 1, 2007 | N/A | N |
| American Policyholders Insurance Co. | 1.093 | January 1, 1998 | N/A | N |
| American Safety Casualty Insurance Co. | 1.504 | April 1, 2002 | 1.221 | N |
| American States Insurance Co. | 1.420 | November 1, 2006 | 1.58 | N |
| American Zurich Insurance Co. | 1.254 | January 1, 2005 | 1.319 | N |
| Amerisure Insurance Company | 1.270 | June 1, 2008 | 1.180 | N |
| Amerisure Mutual Insurance Co. | 1.456 | January 1, 1996 | N/A | N |
| Argonaut Insurance Co. | 1.408 | January 1, 2003 | 1.223 | N |
| Argonaut-Great Central Insurance Co. | 1.520 | January 1, 2004 | 1.175 | N |
| Argonaut-Midwest Insurance Co. | 1.267 | January 1, 2003 | 0.97 | N |
| Arrowood Indemnity Co. | 1.266 | January 1, 2003 | 1.183 | N |
| Associated Indemnity Co. | 1.821 | January 1, 2006 | 1.764 | N |
| Assurance Company of America | 1.567 | January 1, 2005 | 1.649 | N |
| Athena Assurance Co. | 1.350 | January 1, 2008 | 1.486 | N |
| Atlantic Insurance Co. | 1.182 | January 1, 1996 | N/A | N |
| Atlantic Mutual Insurance Co. | 1.362 | January 1, 2002 | 1.14 | N |
| Auto-Owners Insurance Co. | 1.265 | September 1, 2007 | 1.406 | N |
| Automobile Insurance Co. of Hartford CT | 1.54 | January 1, 1996 | N/A | N |
| BancInsure Inc. | 1.3 | February 15, 2006 | 1.4 | N |
| Bankers Standard Insurance Co. | 1.846 | December 1, 2007 | 0.98 | N |
| Benchmark Insurance Company | 1.48 | February 1, 2006 | 1.43 | N |
| Bituminous Casualty Corp. | 1.42 | January 1, 2003 | 1.328 | N |
| Bituminous Fire & Marine Insurance Co. | 1.065 | January 1, 2003 | 1.016 | N |
| Boston Old Colony Insurance Co. | 1.4 | January 1, 1996 | N/A | N |
| Brotherhood Mutual Insurance Co. | 1.174 | February 1, 2008 | 1.244 | N |
| Builders' Mutual Casualty Company | 1.3 | July 1, 2008 | N/A | N |
| Carolina Casualty Insurance Co. | 1.31 | April 1, 2008 | 1.42 | N |
| Casualty Reciprocal Exchange | 1.18 | March 1, 2001 | 1.2 | N |
| Centennial Insurance Co. | 1.362 | January 1, 2002 | 1.14 | N |
| Centre Insurance Company | 1.005 | September 1, 1997 | 1.139 | N |
| Century Indemnity Co. | 1.679 | January 1, 1996 | N/A | N |
| CGU Insurance Company of Illinois | 1.329 | November 1, 1995 | N/A | N |
| CGU Insurance Company of New Jersey | 1.004 | July 1, 1997 | 1.101 | N |
| Charter Oak Fire Insurance Co. | 1.620 | January 1, 2008 | 1.783 | N |
| Cherokee Insurance Co. | 1.38 | January 1, 2007 | N/A | N |
| Chrysler Insurance Co. | 1.43 | February 9, 1996 | N/A | N |
| Chubb Indemnity Insurance Co. | 1.175 | June 1, 2007 | 1.470 | N |
| Church Mutual Insurance Co. | 0.932 | January 1, 2008 | 1.026 | N |
| Cincinnati Casualty Co. | 1.282 | January 1, 2008 | 1.32 | N |
| Cincinnati Indemnity Co. | 1.44 | March 1, 2003 | 1.338 | N |
| Cincinnati Insurance Co. | 1.166 | March 1, 2003 | 1.124 | N |
| Citizens Insurance Company of America | 1.150 | January 1, 2008 | 1.088 | N |
| Clarendon National Insurance Co. | 1.35 | January 1, 1999 | 1.19 | N |
| Clermont Insurance Co. | 1.357 | January 1, 2002 | 1.257 | N |
| Colonial American Casualty & Surety Co. | 1.332 | January 1, 2005 | 1.237 | N |
| Colonial Casualty Insurance Co. | 1.23 | March 1, 2000 | 0.98 | N |
| Columbia National Insurance Company | 1.34 | February 1, 2004 | 1.3 | N |
| Combined Specialty Insurance Co. | 1.251 | November 15, 1997 | 1.534 | N |
| Commerce & Industry Insurance Co. | 1.855 | September 1, 2004 | 1.801 | N |
| COMMERCIAL CASUALTY INSURANCE CO. | 1.40 | January 1, 2004 | 1.29 | N |
| Commercial Insurance Co. of Newark NJ | 1.4 | January 1, 1996 | N/A | N |
| Companion Commercial Insurance Company | 1.425 | August 1, 2006 | N/A | N |
| Companion Property & Casualty Insurance Co. | 1.590 | January 5, 2006 | N/A | N |
| Connecticut General Fire and Casualty Co. | 1.526 | January 1, 1996 | N/A | N |
| Connecticut Indemnity Co. | 1.187 | January 1, 2003 | 1.142 | N |
| Continental Casualty Co. | 1.725 | March 1, 2006 | 1.65 | N |
| Continental Indemnity Co. | 1.40 | April 7, 2006 | N/A | N |
| Continental Insurance Co. | 1.0 | November 1, 2007 | 1.4 | N |
| Continental Western Insurance Co. | 1.449 | January 1, 2007 | 1.509 | N |
| Cooperative Mutual Insurance Co. | 1.38 | November 7, 1995 | N/A | N |
| Coregis Insurance Company | 1.645 | May 1, 2006 | 1.548 | N |
| Cornhusker Casualty Co. | 1.39 | January 1, 2008 | 1.475 | N |
| Credit General Insurance Company | 1.119 | February 14, 2000 | 1.119 | N |
| Crum & Forster Indemnity Co. | 1.330 | July 15, 2005 | 1.437 | N |
| CUMIS Insurance Society Inc. | 1.50 | January 1, 2006 | 1.43 | N |
| Dakota Truck Underwriters | 1.386 | January 1, 2003 | N/A | N |
| Dallas National Insurance Company | 1.54 | January 1, 2003 | 1.39 | N |
| Delos Insurance Co. | 1.35 | October 15, 2006 | N/A | N |
| Depositors Insurance Co. | 1.455 | January 1, 2008 | 1.54 | N |
| DIAMOND INSURANCE CO. | 1.35 | January 1, 2008 | 1.4 | N |
| Discover Property & Casualty Insurance Co. | 1.454 | March 15, 2004 | 1.316 | N |
| Electric Insurance Co. | 1.088 | October 1, 2007 | 1.128 | N |
| EMCASCO Insurance Co. | 1.36 | January 1, 2008 | 1.42 | N |
| Employers Fire Insurance Company | 1.590 | June 1, 2006 | 1.363 | N |
| Employers Insurance of Wausau | 1.90 | July 1, 2007 | 2.05 | N |
| Employers Mutual Casualty Co. | 1.51 | January 1, 2008 | 1.52 | N |
| Employers Reinsurance Corp. | 1.43 | January 1, 2008 | 1.788 | N |
| Equity Mutual Insurance Co. | 1.18 | March 1, 2001 | 1.05 | N |
| Everest National Insurance Co. | 1.34 | January 1, 2004 | 1.28 | N |
| Fairfield Insurance Co. | 1.386 | February 1, 2002 | 1.125 | N |
| Fairmont Insurance Co. | 1.285 | April 1, 2002 | 1.15 | N |
| Fairmont Premier Insurance Co. | 1.428 | May 1, 2002 | 1.469 | N |
| Fairmont Specialty Insurance Co. | 1.236 | January 1, 1999 | 1.128 | N |
| Farm Bureau Mutual Insurance Co. | 1.250 | January 1, 2008 | 1.347 | N |
| Farmers & Merchants Insurance Co. | 1.3 | January 1, 1996 | N/A | N |
| Farmers Casualty Insurance Co. | 1.453 | January 1, 2008 | 1.454 | N |
| Farmers Insurance Exchange | 1.540 | April 1, 2007 | 1.622 | N |
| Farmington Casualty Co. | 0.810 | January 1, 2008 | 0.892 | N |
| Farmland Mutual Insurance Co. | 1.880 | January 1, 2008 | 1.938 | N |
| Federal Insurance Co. | 1.959 | January 1, 2006 | 1.921 | N |
| Federated Mutual Insurance Co. | 1.330 | May 1, 2008 | 1.4 | N |
| Federated Rural Electric Insurance Corp. | 1.33 | January 1, 2002 | 1.3 | N |
| Federated Service Insurance Co. | 1.19 | April 1, 2007 | 1.25 | N |
| Fidelity & Casualty Insurance Co. of New York | 1.29 | April 15, 1997 | 1.47 | N |
| Fidelity & Deposit Co. of Maryland | 1.567 | January 1, 2005 | 1.484 | N |
| Fidelity & Guaranty Insurance Co. | 1.02 | January 1, 1998 | 1.12 | N |
| Fidelity & Guaranty Insurance Underwriters Inc. | 1.19 | January 1, 1998 | 1.26 | N |
| Fire & Casualty Insurance Co. of Connecticut | 1.424 | January 1, 2003 | 1.419 | N |
| Fireman's Fund Insurance Co. | 1.266 | January 1, 2006 | 1.227 | N |
| Fireman's Fund Insurance Co. of Wisconsin | 1.622 | February 1, 2001 | 1.33 | N |
| Fireman's Insurance Co. of Newark NJ | 1.19 | January 1, 1996 | N/A | N |
| Firemen's Insurance Company of Washington, D.C. | 1.665 | January 1, 2007 | 1.732 | N |
| First Comp Insurance Co. | 1.333 | January 1, 2005 | 1.25 | N |
| First Dakota Indemnity Company | 1.40 | July 1, 2008 | N/A | N |
| First Liberty Insurance Corp. | 1.527 | January 1, 2008 | 1.857 | N |
| First National Insurance Co. of America | 1.720 | March 1, 2006 | 1.65 | N |
| Florists' Mutual Insurance Co. | 1.295 | January 1, 2008 | 1.326 | N |
| Fremont Indemnity Co. | 1.08 | January 1, 1998 | 1.03 | N |
| Fremont Industrial Indemnity Co. | 0.98 | January 1, 1998 | 1.13 | N |
| Frontier Insurance Co. | 1.346 | March 1, 2001 | 1.3 | N |
| Gateway Insurance Company | 1.471 | April 1, 2007 | N/A | N |
| General Casualty Insurance Co. of Wisconsin | 1.605 | April 1, 2004 | 1.5 | N |
| General Casualty Insurance Company | 1.365 | April 1, 2004 | 1.276 | N |
| General Insurance Co. of America | 1.560 | November 1, 2006 | 1.77 | N |
| Genesis Insurance Co. | 1.226 | March 11, 1999 | 1.133 | N |
| Glens Falls Insurance Co. | 1.4 | January 1, 1996 | N/A | N |
| Globe Indemnity Co. | 1.345 | January 1, 2003 | 1.34 | N |
| Grain Dealers Mutual Insurance Co. | 1.493 | January 1, 2001 | 1.507 | N |
| Granite State Insurance Co. | 1.613 | September 1, 2004 | 1.566 | N |
| Graphic Arts Mutual Insurance Co. | 1.397 | July 1, 2000 | 1.379 | N |
| Gray Insurance Company | 1.31 | August 13, 1998 | N/A | N |
| Great American Insurance Co. | 1.38 | January 1, 2002 | 1.34 | N |
| Great American Insurance Co. of New York | 1.34 | January 1, 2000 | 1.43 | N |
| Great Central Insurance Co. | 1.55 | August 1, 1998 | 1.67 | N |
| Great Divide Insurance Co. | 1.438 | February 2, 2005 | N/A | N |
| Great Northern Insurance Co. | 1.665 | June 1, 2007 | 1.567 | N |
| Great West Casualty Co. | 1.429 | January 1, 2008 | 1.414 | N |
| Greater New York Mutual Insurance Co. | 1.58 | January 1, 1996 | N/A | N |
| Greenwich Insurance Co. | 1.587 | January 1, 2008 | 1.1 | N |
| Grocers Insurance Co. | 1.05 | July 20, 1998 | 1.2 | N |
| Guide One Elite Insurance Co. | 1.062 | February 1, 2008 | 1.095 | N |
| Guide One Mutual Insurance Company | 1.328 | February 1, 2008 | 1.369 | N |
| Gulf Insurance Co. | 1.287 | April 1, 2001 | 1.391 | N |
| Hanover Insurance Co. | 1.438 | January 1, 2008 | 1.36 | N |
| Harbor Specialty Insurance Co. | 1.35 | September 8, 1999 | N/A | N |
| Harco National Insurance Co. | 1.33 | January 1, 2003 | 1.15 | N |
| Harleysville Insurance Co. | 1.6 | January 1, 2004 | 1.35 | N |
| Harleysville Mutual Insurance Co. | 1.6 | January 1, 2004 | 1.053 | N |
| Hartford Accident & Indemnity Co. | 1.101 | January 1, 2008 | 1.173 | N |
| Hartford Casualty Insurance Co. | 1.439 | January 1, 2008 | 1.533 | N |
| Hartford Fire Insurance Co. | 1.163 | January 1, 2008 | 1.124 | N |
| Hartford Insurance Co. of the Midwest | 1.101 | January 1, 2008 | 1.173 | N |
| Hartford Underwriters Insurance Co. | 1.376 | January 1, 2008 | 1.466 | N |
| Hawkeye Security Insurance Co. | 1.0 | August 1, 2005 | 1.5 | N |
| Highlands Insurance Co. | 1.407 | August 1, 2001 | 1.327 | N |
| Homeland Central Insurance Co. | 1.332 | January 1, 2001 | 1.251 | N |
| Houston General Insurance Co. | 1.401 | October 14, 1995 | N/A | N |
| Illinois National Insurance Co. | 1.613 | September 1, 2004 | 1.566 | N |
| Imperial Casualty & Indemnity Insurance Co. | 1.357 | September 7, 2004 | N/A | N |
| Indemnity Insurance Co. of North America | 0.98 | July 1, 1997 | 1.04 | N |
| Indiana Lumbermans Mutual Insurance Co. | 1.05 | March 1, 2007 | 1.30 | N |
| Insurance Co. of North America | 1.3 | February 1, 1997 | 1.39 | N |
| Insurance Company of the State of Pennsylvania | 1.613 | September 1, 2004 | 1.566 | N |
| Insurance Company of the West | 1.45 | January 1, 2003 | 1.2 | N |
| John Deere Insurance Co. | 1.201 | February 1, 2000 | 1.29 | N |
| Kansas City Fire & Marine Insurance Co. | 1.29 | January 1, 1996 | N/A | N |
| Kemper Casualty Insurance Co. | 1.69 | May 1, 2003 | N/A | N |
| Legion Insurance Co. | 1.553 | May 1, 2002 | 1.25 | N |
| Liberty Insurance Corp. | 1.212 | January 1, 2008 | 1.385 | N |
| Liberty Mutual Fire Insurance Co. | 1.346 | January 1, 2008 | 1.571 | N |
| Liberty Mutual Insurance Co. | 1.642 | January 1, 2008 | 1.689 | N |
| Lincoln General Insurance Co. | 1.430 | September 6, 2006 | 1.297 | N |
| LM Insurance Co. | 1.050 | July 1, 2008 | 1.119 | N |
| LMI Insurance Co. | 1.267 | July 1, 1996 | 1.368 | N |
| Lone Star National Insurance Co. | 1.75 | September 15, 2005 | N/A | N |
| Lumber Mutual Insurance Co. | 1.31 | September 1, 2000 | 1.42 | N |
| Lumberman's Underwriting Alliance | 1.417 | January 1, 2008 | 1.444 | N |
| Lumbermens Mutual Casualty Co. | 1.69 | January 1, 2002 | 1.57 | N |
| Manufacturers Alliance Insurance Co. | 1.495 | July 1, 2004 | N/A | N |
| Markel Insurance Co. | 1.64 | December 1, 1995 | N/A | N |
| Maryland Casualty Co. | 1.724 | January 1, 2005 | 1.814 | N |
| Massachusetts Bay Insurance Co. | 1.222 | January 1, 2008 | 1.156 | N |
| MEMIC Indemnity Company | 1.4 | February 1, 2008 | 1.5 | N |
| Michigan Millers Mutual Insurance Co. | 1.443 | January 1, 2008 | 1.499 | N |
| Mid-Century Insurance Co. | 1.138 | April 1, 2007 | 1.199 | N |
| Midwest Employers Casualty Co. | 1.32 | February 20, 2001 | 1.451 | N |
| Midwest General Casualty Co. | 1.49 | June 1, 1996 | N/A | N |
| Midwest Insurance Company | 1.27 | July 1, 2005 | N/A | N |
| Midwestern Indemnity Co. | 1.25 | January 1, 2005 | 1.32 | N |
| Midwestern Insurance Co. | 1.5 | January 1, 1996 | N/A | N |
| Millers Mutual Insurance Association | 1.252 | January 1, 1998 | 1.336 | N |
| Milwaukee Casualty Insurance Co. | 1.441 | January 1, 2008 | N/A | N |
| Mitsui Sumitomo Ins. Company of America | 1.445 | April 1, 2008 | 1.490 | N |
| Mitsui Sumitomo Insurance USA inc | 1.662 | April 1, 2008 | 1.714 | N |
| National American Insurance Co. | 1.33 | November 1, 2007 | 1.40 | N |
| National Farmers Union Property & Casualty Co. | 1.8 | March 1, 2004 | 1.7 | N |
| National Fire Insurance Co. of Hartford | 1.425 | March 1, 2007 | 1.5 | N |
| National Interstate Insurance Co. | 1.495 | January 1, 2003 | N/A | N |
| National Liability & Fire Insurance Co. | 1.37 | January 1, 2004 | 1.3 | N |
| National Surety Corp. | 1.425 | January 1, 2006 | 1.380 | N |
| National Union Fire Insurance Co. of Pittsburgh PA | 1.613 | September 1, 2004 | 1.566 | N |
| Nationwide Agribusiness Insurance Co. | 1.391 | January 1, 2008 | 1.331 | N |
| Nationwide Mutual Fire Insurance Co. | 1.323 | January 1, 2008 | 1.269 | N |
| Nationwide Mutual insurance Co. | 1.4 | January 15, 2005 | 1.43 | N |
| Nationwide Property & Casualty Insurance Co. | 1.269 | January 1, 1998 | 1.338 | N |
| New Hampshire Insurance Co. | 1.371 | September 1, 2004 | 1.33 | N |
| Niagara Fire Insurance Co. | 1.19 | January 1, 1996 | N/A | N |
| NIPPONKOA Insurance Co. | 1.350 | January 1, 2008 | 1.486 | N |
| NN Insurance Co. | 1.101 | January 1, 2001 | 1.05 | N |
| North American Elite Insurance Co. | 1.859 | July 1, 2007 | N/A | N |
| North American Specialty Insurance Co. | 1.788 | July 1, 2007 | 1.18 | N |
| North River Insurance Co. | 1.063 | July 1, 2005 | 1.15 | N |
| Northbrook Indemnity Co. | 1.404 | November 21, 1995 | N/A | N |
| Northbrook National Insurance Co. | 1.264 | November 21, 1995 | N/A | N |
| Northbrook Property & Casualty Co. | 0.965 | March 21, 2002 | 0.804 | N |
| Northern Assurance Co. of America | 1.225 | September 1, 2001 | 1.15 | N |
| Northern Insurance Co. of New York | 1.41 | January 1, 2005 | 1.484 | N |
| Northwest National Casualty Co. | 1.227 | January 1, 2001 | 1.169 | N |
| Nova Casualty Company | 1.245 | July 7, 2006 | N/A | N |
| Oak River Insurance Co. | 1.27 | January 1, 2008 | 1.3 | N |
| Ohio Casualty Insurance Co. | 1.95 | July 1, 2005 | 1.91 | N |
| Ohio Security Insurance Co. | 1.65 | July 1, 2005 | 1.75 | N |
| Old Republic General Insurance Corp. | 1.454 | January 2, 2003 | 1.26 | N |
| Old Republic Insurance Co. | 1.48 | January 1, 2006 | 1.40 | N |
| One Beacon America Insurance Company | 1.363 | September 1, 2001 | 1.28 | N |
| One Beacon Insurance Co. | 1.501 | September 1, 2001 | 1.409 | N |
| One Beacon Midwest Insurance Company | 1.409 | | N/A | N |
| Owners Insurance Company | 1.406 | September 1, 2007 | N/A | N |
| Pacific Employers Insurance Co. | 1.704 | January 1, 2007 | 1.794 | N |
| Pacific Indemnity Insurance Co. | 1.371 | January 1, 2007 | 1.290 | N |
| Peerless Indemnity Insurance Co. | 1.50 | January 1, 2007 | 2.00 | N |
| Peerless Insurance Co. | 1.75 | April 1, 2005 | 2.164 | N |
| Penn Millers Insurance Co. | 1.688 | February 1, 2008 | 1.622 | N |
| Pennsylvania General Accident Insurance Co. | 1.108 | September 1, 2001 | 1.04 | N |
| Pennsylvania Manufacturers Indemnity Co. | 1.170 | July 1, 2004 | N/A | N |
| Pennsylvania Manufacturers' Association Ins. Co. | 1.30 | July 1, 2004 | 1.251 | N |
| Pennsylvania National Mutual Casualty Ins. Co. | 1.301 | November 1, 1995 | N/A | N |
| PETROLEUM CASUALTY CO. | 1.127 | January 1, 1996 | N/A | N |
| Petrosurance Casualty Co. | 1.25 | January 1, 2001 | 1.1 | N |
| Pharmacists Mutual Insurance Co. | 1.458 | January 1, 2007 | 1.489 | N |
| PHICO Insurance Co. | 1.306 | February 1, 2001 | 1.105 | N |
| Phoenix Assurance Company | 1.187 | January 1, 2003 | 1.183 | N |
| Phoenix Insurance Co. | 1.755 | January 1, 2008 | 1.932 | N |
| Platte River Insurance Co. | 1.05 | May 13, 1999 | N/A | N |
| Potomac Insurance Co. of Illinois | 1.166 | December 1, 1996 | 1.295 | N |
| Praetorian Insurance Company | 1.75 | January 1, 2007 | 1.35 | N |
| Preferred Physicians Insurance Co. | 0.992 | April 1, 1998 | N/A | N |
| Preferred Professional Insurance Co. | 1.226 | November 29, 2007 | 1.526 | N |
| Preferred Risk Mutual Insurance Co. | 1.171 | December 1, 1995 | N/A | N |
| Premier Group Insurance Co. | 1.451 | December 1, 2005 | N/A | N |
| Protective Insurance Co. | 1.478 | September 1, 1995 | N/A | N |
| Providence Washington Insurance Co. | 1.42 | November 1, 1995 | N/A | N |
| Quanta Indemnity Co. | 1.45 | April 1, 2003 | 1.17 | N |
| Rampart Insurance Co. | 1.386 | February 15, 1996 | N/A | N |
| Redland Insurance Co. | 1.75 | January 1, 2007 | 1.35 | N |
| Regent Insurance Co. | 1.519 | April 1, 2004 | 1.42 | N |
| Reliance Insurance Co. | 1.365 | July 1, 1997 | 1.431 | N |
| Reliance National Indemnity Co. | 1.569 | July 1, 1997 | 1.645 | N |
| Reliance National Insurance Co. | 1.023 | July 1, 1997 | 1.083 | N |
| Republic Fire & Casualty Insurance Co. | 1.30 | October 15, 2007 | N/A | N |
| Republic Franklin Insurance Co. | 1.266 | March 1, 2002 | 1.103 | N |
| Republic Indemnity Co. of America | 1.18 | January 1, 2008 | 1.21 | N |
| Republic Indemnity Co. of California | 1.36 | January 1, 2007 | 1.43 | N |
| Republic Underwriters Insurance Co. | 1.60 | October 15, 2007 | N/A | N |
| Republic Western Insurance Co. | 1.28 | January 1, 1996 | N/A | N |
| Royal Insurance Co. of America | 1.582 | January 1, 2003 | 1.577 | N |
| SAFECO Insurance Co. of America | 0.98 | July 1, 1997 | 1.28 | N |
| Safeguard Insurance Co. | 1.424 | January 1, 2003 | 1.419 | N |
| Safety First Insurance Company | 1.54 | January 1, 2001 | N/A | N |
| Safety National Casualty Co. | 1.34 | February 1, 2002 | 1.22 | N |
| Safety National Insurance Co. | 1.29 | January 8, 1997 | N/A | N |
| Sagamore Insurance Co. | 1.6 | January 1, 2002 | 1.28 | N |
| SeaBright Insurance Company | 1.522 | June 1, 2006 | N/A | N |
| Secura Insurance | 1.38 | March 1, 2001 | 1.24 | N |
| Security Insurance Co. of Hartford | 1.819 | January 1, 2003 | 1.814 | N |
| Security National Insurance Co. | 1.065 | January 1, 2005 | 1.075 | N |
| Select Insurance Co. | 1.368 | April 1, 2002 | 1.287 | N |
| Sentinel Insurance Company Ltd. | 1.013 | January 1, 2008 | 1.080 | N |
| Sentry Casualty Company | 1.280 | January 1, 2008 | 1.207 | N |
| Sentry Insurance A Mutual Company | 1.272 | January 1, 2008 | 1.348 | N |
| Sentry Select Insurance Company | 1.299 | January 1, 2008 | 1.278 | N |
| SFM MUTUAL INSURANCE CO. | 1.41 | October 1, 2007 | N/A | N |
| Sompo Japan Insurance Co. of America | 1.344 | December 1, 1995 | N/A | N |
| Southern Insurance Co. | 0.95 | October 15, 2007 | N/A | N |
| SPARTA Insurance Co. | 1.480 | November 15, 2007 | N/A | N |
| St. Paul Fire & Marine Insurance Co. | 1.485 | January 1, 2008 | 1.634 | N |
| St. Paul Guardian Insurance Co. | 1.080 | January 1, 2008 | 1.189 | N |
| St. Paul Insurance Co. of Illinois | 1.755 | May 21, 2002 | 1.462 | N |
| St. Paul Medical Liability Insurance Co. | 1.755 | May 21, 2002 | 1.462 | N |
| St. Paul Mercury Insurance Co. | 1.350 | January 1, 2008 | 1.486 | N |
| St. Paul Property & Casualty Insurance Co. | 1.404 | May 21, 2002 | 1.169 | N |
| St. Paul Protective Insurance Co. | 1.755 | January 1, 2008 | 1.932 | N |
| Standard Fire Insurance Co. | 0.945 | January 1, 2008 | 1.54 | N |
| STAR Insurance Co. | 1.25 | May 1, 2005 | 1.43 | N |
| StarNet Insurance Company | 1.51 | April 1, 2008 | 1.63 | N |
| State Auto Mutual Insurance Co. | 1.614 | January 1, 2008 | 1.791 | N |
| State Auto Property & Casualty Insurance Co. | 1.291 | January 1, 2008 | 1.614 | N |
| State Farm Fire & Casualty Co. | 1.327 | January 1, 2003 | 1.2 | N |
| State National Insurance Co. | 1.395 | March 11, 2005 | N/A | N |
| Statewide Insurance Co. | 1.42 | April 15, 2003 | 1.14 | N |
| SUA Insurance Company | 1.66 | February 1, 2007 | N/A | N |
| Sumitomo Marine & Fire Insurance Co. Ltd. | 1.49 | January 1, 2003 | 1.38 | N |
| T.H.E. Insurance Company | 1.3 | January 1, 2001 | N/A | N |
| Technology Insurance Co. | 1.33 | September 5, 2005 | 1.4 | N |
| The Netherlands Insurance Co. | 1.150 | May 1, 2005 | N/A | N |
| TIG Insurance Co. | 1.32 | December 1, 2000 | 1.469 | N |
| Titan Indemnity Co. | 1.08 | November 15, 1997 | 1.193 | N |
| Tokio Marine & Nichido Fire Insurance Co. Ltd. | 1.47 | October 1, 2003 | 1.239 | N |
| Tower Insurance Co. | 1.651 | June 1, 2002 | N/A | N |
| Tower Insurance Company of New York | 1.40 | July 31, 2007 | N/A | N |
| Trans-Pacific Insurance Co. | 1.250 | November 1, 2007 | 1.338 | N |
| Transcontinental Insurance Co. | 1.250 | March 1, 2007 | 13 | N |
| Transguard Insurance Co. of America | 1.60 | January 1, 2008 | 1.407 | N |
| Transportation Insurance Co. | 1.540 | March 1, 2007 | 1.6 | N |
| Travelers Casualty and Surety Co. | 1.350 | January 1, 2008 | 1.486 | N |
| Travelers Casualty and Surety Co. of America | 1.54 | January 1, 1996 | N/A | N |
| Travelers Casualty Co. of Connecticut | 1.485 | January 1, 2008 | 1.54 | N |
| Travelers Casualty Insurance Company of America | 1.309 | January 1, 1996 | N/A | N |
| Travelers Commercial Insurance Co. | 1.155 | January 1, 1996 | N/A | N |
| Travelers Indemnity Co. | 1.215 | January 1, 2008 | 1.337 | N |
| Travelers Indemnity Co. of America | 1.080 | January 1, 2008 | 1.189 | N |
| Travelers Indemnity Co. of Connecticut | 1.485 | January 1, 2006 | 1.673 | N |
| Travelers Insurance Co. | 1.521 | January 1, 2002 | 1.449 | N |
| Travelers Property Casualty Co. of America | 1.958 | January 1, 2008 | 2.155 | N |
| Tri-State Insurance Co. of Minnesota | 1.309 | January 1, 2003 | 1.131 | N |
| Triangle Insurance Co. | 1.558 | January 1, 2004 | N/A | N |
| Trinity Universal Insurance Co. | 1.294 | January 1, 2005 | 1.306 | N |
| Trinity Universal Insurance Co. of Kansas | 1.522 | January 1, 2005 | 1.537 | N |
| Truck Insurance Exchange | 1.338 | April 1, 2007 | 1.410 | N |
| Twin City Fire Insurance Co. | 1.251 | January 1, 2008 | 1.333 | N |
| U.S. Specialty Insurance Co. | 1.13 | April 15, 2000 | N/A | N |
| ULLICO Casualty Co. | 1.316 | January 1, 2006 | 1.351 | N |
| Union Insurance Co. of Providence | 1.21 | January 1, 2008 | 1.22 | N |
| Union Insurance Company of Providence | 1.22 | September 1, 2007 | 1.73 | N |
| United Fire & Casualty Co. | 1.37 | January 1, 2006 | 1.40 | N |
| United Pacific Insurance Co. | 1.16 | July 1, 1997 | 1.216 | N |
| United Security Insurance Co. | 1.129 | January 1, 1998 | 1.304 | N |
| United States Fidelity & Guaranty Co. | 1.672 | March 15, 2004 | 1.11 | N |
| United States Fire Insurance Co. | 1.528 | July 15, 2005 | 1.293 | N |
| United Wisconsin Insurance Co. | 1.34 | January 1, 2008 | 1.45 | N |
| Universal Underwriters Insurance Co. | 1.825 | January 1, 2005 | 1.702 | N |
| Utica Mutual Insurance Co. | 1.266 | March 1, 2002 | 1.164 | N |
| Utica National Assurance Co. | 1.696 | July 1, 2000 | 1.379 | N |
| Valiant Insurance Co. | 1.254 | January 1, 2005 | 1.484 | N |
| Valley Forge Insurance Co. | 1.250 | March 1, 2007 | 1.3 | N |
| Vanliner Insurance Co. | 1.622 | January 1, 2008 | 1.475 | N |
| Vigilant Insurance Co. | 1.861 | January 1, 2007 | 1.784 | N |
| Villanova Insurance Co. | 1.553 | May 1, 2002 | 1.348 | N |
| Virginia Surety | 1.361 | January 1, 2006 | 1.344 | N |
| Wausau Business Insurance | 1.250 | July 1, 2007 | 1.350 | N |
| Wausau General Insurance Co. | 1.00 | July 1, 2007 | 1.10 | N |
| Wausau Underwriters Insurance Co. | 1.50 | July 1, 2007 | 1.650 | N |
| Wesco Insurance Company | 1.50 | November 3, 2006 | N/A | N |
| West American Insurance Co. | 1.4 | July 1, 2005 | 1.6 | N |
| Western Agricultural Insurance Company | 1.250 | January 1, 2008 | 1.347 | N |
| Western Continental Insurance Co. | 1.419 | February 15, 1996 | N/A | N |
| Western Indemnity Insurance Company | 1.15 | April 19, 2000 | N/A | N |
| Westfield Insurance Company | 1.393 | July 1, 2006 | N/A | N |
| Westport Insurance Corp. | 1.430 | March 1, 2005 | 1.395 | N |
| Williamsburg National Insurance Co. | 1.51 | May 1, 2005 | 1.75 | N |
| Work First Casualty Company | 1.452 | April 20, 2006 | N/A | N |
| X L Specialty Insurance Co. | 1.322 | January 1, 2008 | 1.4 | N |
| XL Insurance America, Inc. | 1.058 | January 1, 2008 | N/A | N |
| ZENITH INSURANCE COMPANY | 1.589 | April 1, 2004 | 1.458 | N |
| Zurich America Insurance Company of Illinois | 1.724 | January 1, 2005 | 1.814 | N |
| Zurich American Insurance Company | 1.567 | January 1, 2005 | 1.649 | N |
| Kansas Assoc. of Homes for the Aging Ins. Group | 1.46 | March 31, 2005 | 1.39 | Y |
| Kansas Assoc. of School Boards 0.70 to 0.99 Mod | 1.179 | July 1, 2008 | 1.42 | Y |
| Kansas Assoc. of School Boards 1.0 to 1.19 Mod | 1.311 | July 1, 2008 | 1.58 | Y |
| Kansas Assoc. of School Boards 1.20 and above Mods | 1.527 | July 1, 2008 | 1.84 | Y |
| Kansas Automobile Dealers W.C.F. | 1.429 | January 1, 2008 | 1.49 | Y |
| Kansas Building Industry W.C.F. | N/A | January 1, 2008 | 1.450 | Y |
| Kansas Eastern Regional Insurance Trust | 1.44 | January 1, 2008 | 1.74 | Y |
| Kansas Employers W.C.F. Mods 1.01 to 1.60 | 1.69 | January 1, 2008 | 1.96 | Y |
| Kansas Employers W.C.F. Mods 0.81- 1.0 | 1.54 | January 2, 2007 | 1.70 | Y |
| Kansas Employers W.C.F. Mods 1.31 to 1.60 | 1.90 | March 15, 2008 | N/A | Y |
| Kansas Employers W.C.F. Mods greater than 1.61 | 2.93 | January 1, 2008 | N/A | Y |
| Kansas Employers W.C.F. Mods less than 0.8 | 1.39 | January 1, 2008 | 1.45 | Y |
| Kansas Health Care Assoc. W.C.I.T. | 2.033 | January 1, 2006 | 1.756 | Y |
| Kansas Livestock Assoc. R.M.S.I.W.C.F. | 1.986 | January 1, 2008 | 2.156 | Y |
| Kansas Municipal Insurance Trust | 1.52 | December 20, 2007 | 1.58 | Y |
| Kansas Restaurant & Hospitality Assoc. | 1.39 | January 1, 2008 | 1.45 | Y |
| Kansas Truckers Risk Mgt Group Trust - Mods less than 0.89 | 1.33 | January 1, 2008 | 1.54 | Y |
| Kansas Truckers Risk Mgt Group Trust Mods over 1.16 | 1.63 | January 1, 2008 | 1.75 | Y |
| Kansas Truckers Risk Mgt. Group Trust Mods 0.90 - 1.15 | 1.48 | January 1, 2008 | N/A | Y |
| Kansas Workers Risk Coop for Counties | 1.665 | December 14, 2005 | 1.618 | Y |
| KHA Workers Comp Fund - Mods 1.0 or less | 1.55 | January 1, 2008 | 1.8 | Y |
| KHA Workers' Cmp Fund - Mods 1.01 - 1.20 | 1.65 | January 1, 2008 | 1.8 | Y |
| KHA Workers' Comp Fund - Mods 1.201 and greater | 1.80 | January 1, 2008 | 1.80 | Y |
| Wichita Auto Dealers S.I.F. | 1.429 | December 6, 1995 | N/A | Y |