Jayanth J. Challa

Ace Info Solutions, Inc. provides information technology consulting, management, and support services to government organizations. It specializes in software development, systems engineering, information technology infrastructure and service desk, cyber security, healthcare information technology, and mobile & cloud computing solutions. The company was founded by Jayanth J. Challa and Narsimha Reddy Koppula in December 2000 and is headquartered in Reston, VA.

Ed. Züblin AG engages in the provision of building construction and civil engineering services. Its services include turnkey construction, structural maintenance, tunnelling, ground engineering, structural steelwork, timber construction, environmental technology, bridge construction, chimney and refractory engineering, construction logistics, and modular construction . The company was founded by Eduard Züblin in 1898 and is headquartered in Stuttgart, Germany.

Earthtech, Inc. develops biochemical products. The company's services include engineering, remediation, construction, contract operations and management, air quality management, water and wastewater engineering, solid waste management & transportation and infrastructure engineering. Earthtech was founded in 1970 and is located in Birmingham, AL