Are you paying the lowest premium possible for your workers' compensation insurance? We can help you find out by giving you the lowest rates filed with the Department by insurance companies for your class code.

These rates form the basis for calculating your final premium and are a starting point for shopping for workers' compensation insurance. With few exceptions, the rates shown are per one hundred dollars of payroll.

Your final premium cost may depend on other factors besides these base premium rates, such as whether the insurance company will allow you additional premium credits for having a safety program or using managed care programs.

In addition, remember that there are other things to consider when shopping for insurance coverage besides cost, such as the quality of service you will likely receive from your insurance company.

Class codes can be obtained from the NCCI at 800-622-4123.  For general information regarding class codes, you may contact a Workers’ Compensation Specialist in the Property and Casualty Section at 800-394-0964.

Displaying 276 - 300 of 565

Company name Sort descending NAIC Class Code Current Rate Current Effective Date Previous Rate Previous Effective Date % of Rate change
MIDDLESEX INSURANCE COMPANY 016923434 4923 $1.63 2026-01-01 $1.37 2025-01-01 15.95%
MIDDLESEX INSURANCE COMPANY 016923434 5020 $3.42 2026-01-01 $3.59 2025-01-01 -4.97%
MIDDLESEX INSURANCE COMPANY 016923434 5022 $5.46 2026-01-01 $5.69 2025-01-01 -4.21%
MIDDLESEX INSURANCE COMPANY 016923434 5037 $8.71 2026-01-01 $8.42 2025-01-01 3.33%
MIDDLESEX INSURANCE COMPANY 016923434 5040 $6.39 2026-01-01 $7.01 2025-01-01 -9.7%
MIDDLESEX INSURANCE COMPANY 016923434 5057 $3.85 2026-01-01 $3.93 2025-01-01 -2.08%
MIDDLESEX INSURANCE COMPANY 016923434 5059 $16.7 2026-01-01 $17.86 2025-01-01 -6.95%
MIDDLESEX INSURANCE COMPANY 016923434 5067 $0 2025-01-01 $0 2025-01-01 0%
MIDDLESEX INSURANCE COMPANY 016923434 5102 $5.39 2026-01-01 $5.16 2025-01-01 4.27%
MIDDLESEX INSURANCE COMPANY 016923434 5146 $3.73 2026-01-01 $3.93 2025-01-01 -5.36%
MIDDLESEX INSURANCE COMPANY 016923434 5160 $1.87 2026-01-01 $1.83 2025-01-01 2.14%
MIDDLESEX INSURANCE COMPANY 016923434 5183 $2.87 2026-01-01 $2.85 2025-01-01 0.7%
MIDDLESEX INSURANCE COMPANY 016923434 5188 $2.91 2026-01-01 $2.69 2025-01-01 7.56%
MIDDLESEX INSURANCE COMPANY 016923434 5190 $2.47 2026-01-01 $2.28 2025-01-01 7.69%
MIDDLESEX INSURANCE COMPANY 016923434 5191 $0.89 2026-01-01 $0.87 2025-01-01 2.25%
MIDDLESEX INSURANCE COMPANY 016923434 5192 $3.2 2026-01-01 $3.06 2025-01-01 4.38%
MIDDLESEX INSURANCE COMPANY 016923434 5213 $4.57 2026-01-01 $4.53 2025-01-01 0.88%
MIDDLESEX INSURANCE COMPANY 016923434 5215 $5.03 2026-01-01 $4.9 2025-01-01 2.58%
MIDDLESEX INSURANCE COMPANY 016923434 5221 $3.55 2026-01-01 $3.85 2025-01-01 -8.45%
MIDDLESEX INSURANCE COMPANY 016923434 5222 $6.32 2026-01-01 $6.15 2025-01-01 2.69%
MIDDLESEX INSURANCE COMPANY 016923434 5223 $3.27 2026-01-01 $3.35 2025-01-01 -2.45%
MIDDLESEX INSURANCE COMPANY 016923434 5348 $3.44 2026-01-01 $3.29 2025-01-01 4.36%
MIDDLESEX INSURANCE COMPANY 016923434 5402 $4.79 2026-01-01 $4.77 2025-01-01 0.42%
MIDDLESEX INSURANCE COMPANY 016923434 5403 $4.29 2026-01-01 $4.09 2025-01-01 4.66%
MIDDLESEX INSURANCE COMPANY 016923434 5437 $4.02 2026-01-01 $4.49 2025-01-01 -11.69%