Jeff Rosner

Southwaste Services, Inc. engages in provision of liquid waste management. Its services include collection and processing of brown grease (grease trap waste), municipal sludge, domestic septage, grit (car wash and water treatment residuals), and lint (laundry facilities). The company was founded by Darrell Rogers in 1948 and is headquartered in Houston, TX.

GulfStar Merchant Banking Ltd (GulfStar Merchant Banking) is a private equity subsidiary of GulfStar Group, Inc founded in 1990 by Kent Kahle, Thomas M. Hargrove and Steve A. Lasher. The firm is headquartered in Houston, Texas.

Trinity Steel Fabricators, Inc. engages in the provision of fabricated structural steel products. It serves the petrochemical and refining, chemical processing, power, oil and gas production, and mining sectors. The firm has executed projects for engineering, procurement, and construction firms in the industrial market. The company was founded by Roy Karnes Sr. in 1976 and is headquartered in Trinity, TX.

GulfStar Group, Inc. operates as a middle market investment banking firm that provides advisory services. Its services include mergers and acquisitions, private placements, and financial advisory services. The firm serves entrepreneurs, family-owned businesses, corporations and private equity firms. The company was founded by Stephen A. Lasher, Thomas M. Hargrove and G. Kent Kahle in 1990 and is headquartered in Houston, TX.

Rotan Mosle, Inc. provides investment banking and securities brokerage services.

Geosource, Inc. provides land re-vegetation and reclamation services.

Indiana Municipal Power Agency operates as a wholesale electric power provider. It offers support and scholarships, communication and marketing, and economic development services. The company was founded 1983 and is headquartered in Carmel, IN.