Environmental Systems Design Inc. (Chicago) named Michael Thomas senior vice president, and more.

FMI Corp. opened its fifth U.S. office in Houston.

Olive Tree Energy announces new director of corporate development; more HVAC contractor services news briefs.

Mudlick Mail is launching a campaign to market its direct mail offerings to more than 13,000 HVAC professionals.

Dewberry names senior associate at Chapel Hill, N.C. office.

Rapid Recovery names two individuals to its N.C. management team; Integrated Environmental Solutions appoints west coast vice president; more HVAC news briefs.

Diversified Pure Chem acquires the assets of RTR Recovery Services.

Maxwell Systems signs strategic partnership agreement; Crockett Facilities Services Inc. was named the ninth largest mechanical contractor in the Washington, D.C., metro area.