Addon Services, LLC is a government-focused contractor that combines construction and engineering with information technology, technical documentation, and professional support. Its engineering and manufacturing work covers the industrial lifecycle from feasibility through commissioning and maintenance, while its construction arm serves federal and commercial agencies across the Continental United States. The company is an 8(a) and EDWOSB participant and, through a joint venture, has access to ISO 9001:2015 and CMMI Level III certifications.
ISO 9001:2015
CMMI Level III (Development & Services)
8(a)
Registration
EDWOSB
Registration
CMMILEVEL3
Quality certification
Delphinus EngineeringFounded in 1994, Delphinus Engineering grew from a small professional-services company into a federal and defense contractor supporting more than 700 professional and technical personnel. Its work brings together marine engineering and ship repair with cyber operations and security, serving government customers from offices across the East, West and Pacific coasts. Delphinus is also a successful graduate of the Small Business Administration’s 8(a) program, and its marine engineering and services operations hold quality systems recognized to ISO 9001:2015 requirements.NEWTOWN SQUARE, PA
Compass 360 SolutionsKnown for its decades of experience with public-sector work, Compass 360 Solutions is a construction and engineering company serving government agencies. The team is particularly experienced in projects carried out inside occupied healthcare facilities and other tightly controlled environments, where safety, quality control, and coordination matter as much as the construction itself.DUNKIRK, MD
C2 Technology SolutionsSince 2010, C2 Technology Solutions has provided IT and engineering consulting for government and commercial clients, pairing software and systems expertise with cybersecurity, cloud, and infrastructure support. The Columbia, Maryland small business stands out for its globally minded reach, fully cleared professionals, and a team averaging more than 20 years of experience. Its partner network and federal contract vehicles extend that reach into turnkey technology delivery and mission-focused support.COLUMBIA, MD
ReliaSource, IncFounded in Baltimore in 2002, minority woman-owned ReliaSource provides mission-critical IT services to government agencies, combining global field support with citizen-facing technology and modernization work. Its standing network of more than 600 on-demand technicians has deployed over 3.5 million devices worldwide, while its teams also build public-service kiosks and run cloud DevSecOps programs for DoD and intelligence applications. ReliaSource holds ISO 9001:2015 and ISO/IEC 20243:2018 certifications and is designated a Maryland MBE and Virginia SWAM business.BALTIMORE, MD