OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has affirmed the Long-Term Issuer Credit Rating (Long-Term ICR) of “bbb+” of ACMAT Corporation (ACMAT) (Farmington, CT) [Pink Sheets: ACMTA]. A.M. Best also has affirmed the Financial Strength Rating of A (Excellent) and the Long-Term ICR of “a+” of ACMAT’s wholly owned subsidiary, ACSTAR Insurance Company (ACSTAR) (Chicago, IL). The outlook for all Credit Ratings (ratings) is stable. The rating affirmations reflect ACSTAR’s superior risk-adjusted capit