Mark Day

Part of Asplundh Tree Expert LLC, EPS NASS TopCo, Inc. is a company that provides comprehensive electric power solutions for the electrification of everything. The company, based in San Francisco, CA, offers services such as electrical testing, transformer installation and repair, engineering, maintenance, grid equipment, and cyber security. The company is committed to creating a sustainable future for the planet by modernizing the electrical grid and reducing carbon emissions. EPS NASS TopCo is also dedicated to supporting military members and their families during their transition to civilian careers. Founded in 2021, the CEO of the company is Mark Day. EPS NASS TopCo was acquired by Asplundh Tree Expert LLC on May 28, 2024.

ManTech MBI, Inc. provides information technology solutions. It offers service-oriented architecture enterprise, data interoperability, information assurance and enterprise management and governance services. The company was incorporated on January 1, 1985 and is headquartered Fairfax, VA.

Part of Frontera Investment, Inc., EPA, Inc. is a company that distributes building supply materials. The company is based in Baldwin, NY.

Natural Resources Consulting (NRC) is one of the private employers of biological and natural resource professionals in the Upper Midwest. Headquartered in Cottage Grove, Wisconsin, they have offices strategically located to best serve their clients. NRC provides private sector, energy sector, and governmental clients with a full range of technical natural resource services, project support, and regulatory consultation to address today’s complex environmental and natural resource issues. Their collaborative technical approach, comprehensive understanding of natural systems and environmental policy experience results in cost-effective, yet invaluable project solutions for their clients.

McDonald Bradley, Inc. provides secure information sharing and information technology solutions. The firm's solutions portfolios include service-oriented enterprise, data interoperability, information assurance, and enterprise management and governance. The company was founded by Sharon McDonald and James Bradley in 1985 and is headquartered in Herndon, VA.