Rated “A” (Excellent VIII by A.M. Best), Atain Insurance Company and Atain Specialty Insurance Company are admitted and nonad ... mitted property and casualty insurance companies dedicated to serving niche programs and excess & surplus (E&S) markets. Licensed in 50 states, Atain, an H.W. Kaufman Group company, underwrites numerous lines of business including professional liability, general liability, and commercial multi-peril risks. read more