Top 100 Cybersecurity Companies in Washington DC

Sikich LLP is a global company specializing in technology-enabled professional services. Founded in 1982, Sikich offers a wide range of information technology, cybersecurity, and compliance services. From corporations and not-for-profits to state and local governments and federal agencies, Sikich clients utilize a broad spectrum of services and products to help them improve performance and achieve long-term, strategic goals.

Dataprise is a Rockville, Maryland-based IT managed services company. The firm provides IT managed services, cybersecurity, IT strategy consulting, and web development and is midsize.The firm was launched in 1995.

Aligned Technology Solutions is a Washington, DC-based IT services provider. Their team of over 15 employees serves small and midmarket businesses. Additional services include cloud consulting & SI, cybersecurity, and voice services. They were founded in 2010.

Integris is an IT solutions and services company based in Cranbury, N.J., with offices around the country. The company, founded in 1997, has more than 250 employees and provides IT managed services, cybersecurity, IT strategy consulting, and cloud consulting & SI services. Domain Technology Partners serves small and mid-market companies in various industries that include business services, legal, and financial services.

Cloudforce is an Oxon Hill, Maryland-based cloud consulting & SI company. Launched in 2010, the small team provides cloud consulting & SI, cybersecurity, BI & big data consulting & SI, unified communications consulting & SI, and more.

DesignDATA is an IT managed services company established in 1979. The company specializes in IT managed services, cloud consulting & SI, and IT strategy consulting and has a midsize team. The company is based in Gaithersburg, Maryland.

CWPS is an IT managed services company headquartered in Washington, D.C. The company was founded in 1980, and has 153 employees. They specialize in IT managed services and cloud consulting services for their clients.

Located in Tysons, Virginia; Briarcliff, Texas and St Andrews, United Kingdom, bladestack.io is a small cybersecurity company. They specialize in cybersecurity, cloud consulting & SI, and IT strategy consulting and were founded in 2021.

Cybersecurity and IT managed services company Iron Range Cyber was established in 2020. Their small team is located in Washington, District of Columbia. Iron Range Cyber focuses on cybersecurity and IT managed services.

Visore Security Solutions is a cybersecurity company. Founded in 2020, the team focuses on cybersecurity. Their small firm is headquartered in Rockville, Maryland; Farmington Hills, Michigan and Arlington, Virginia.

Fidelis Cybersecurity is a cybersecurity firm based in Bethesda, Maryland with offices around the world. Founded in 2002, their team of over 250 employees provides services to mid-market and enterprise clients. They specialize in cybersecurity and IT strategy consulting services.

Mid-Atlantic Computer Solutions is an IT solution provider based in Alexandria, VA. Founded in 2002, their 3-person team provides small businesses with IT managed services, IT strategy consulting, cloud consulting, and cybersecurity measures. 

Ntiva, Inc., an IT managed services company, is in McLean, Virginia. Founded in 2004, the midsize team specializes in IT managed services, cloud consulting & SI, IT strategy consulting, and cybersecurity.

Cybersecurity company Cleared Systems is headquartered in Fairfax, Virginia. The small firm was founded in 2019. Their services include cybersecurity, IT strategy consulting, cloud consulting & SI, and IT managed services.

Capital Techies is an IT company headquartered right outside of Washington, D.C., in Falls Church, Va. Since 2005, the company’s team of 2 people has been specializing in IT managed services; they also provide cloud consulting & SI, cybersecurity, and IT strategy consulting.

ASF Tech Partners, a custom software development company, was launched in 2023. The small team offers custom software development, web development, mobile app development, web design, and more. The agency is in Washington, District of Columbia.

US Resources, Inc. is an IT company founded in 1990 with more than 10 members. They offer cybersecurity, IT managed services, and IT strategy consulting from their office in Vienna, Va. They work with small and mid-market firms in the fields of legal, business, and financial services.

NetAesthetics, a cybersecurity company, is headquartered in Washington, District of Columbia. Launched in 2015, the small team focuses on cybersecurity, IT strategy consulting, cloud consulting & SI, web development, and more.

MassLight is a development studio located in Washington, DC. Their services include web,  mobile app, and custom software development. The 30-person team was established in 2000.

Established in 1969, ICF is a cybersecurity company. The large team offers cybersecurity, ECM consulting and SI, business consulting, unified communications consulting & SI, and more. The company is based in Fairfax, Virginia and Glen Allen, Virginia.

Good Harbor is a cybersecurity company located in Washington, District of Columbia. The small team focuses on cybersecurity and IT strategy consulting. The agency was launched in 2002.

Rapid7 is a cybersecurity company launched in 2000. Their large team is located in Boston, Massachusetts; Manhattan Beach, California; Austin, Texas and Cambridge, Massachusetts. The company offers cybersecurity, IT managed services, and IT strategy consulting.

Exceptional Software Strategies is a technology solutions government contractor. It was founded in 1996 and is headquartered in Linthicum, Md., with an additional office in Vienna, Va. Its team of 86 specializes in cybersecurity and custom software development.

Headquartered in Washington, District of Columbia and Melbourne, Florida, Tsymmetry is a software development firm and cybersecurity company. The midsize company was founded in 1999. Their team provides custom software development and cybersecurity.

Cybersecurity company MindPoint Group, LLC is located in Alexandria, Virginia. The midsize team provides cybersecurity, custom software development, and IT managed services. The company was launched in 2009.

SecureStrux LLC is a small cybersecurity company. The Arlington, Virginia-based firm was founded in 2008. Their team specializes in cybersecurity and IT managed services.

SAINT Corporation is a small cybersecurity company. They focus on cybersecurity and were founded in 1998. The agency is based in Bethesda, Maryland.

Barbaricum LLC is a cybersecurity and PR company. They are based in Washington, District of Columbia and have a midsize team. The agency focuses on cybersecurity and public relations.

Bandura Cyber is a Tysons, Virginia-based cybersecurity company. The small team offers cybersecurity. The agency was established in 2014.