McLean, United States: innovation profile

McLean is number 131 in the 311 Innovation Cities Index, with an innovation score of 43. It is home to 6 R&D labs, 11 startups, 8 investors and 5 of the world's largest companies in the 311 Institute directories.

Part of the 311 Innovation Cities Index (311institute.com). Last updated 7 October 2026.

Largest companies

• Hilton Worldwide (#646)
• Booz Allen Hamilton Holding Corporation (#683)
• Maximus, Inc. (#1205)
• Capital One Financial Corp (#F33)
• Freddie Mac (#F74)

Startups

• Adelphi Data
• Apira Technologies
• JelliSee Ophthalmics
• Permiso Security
• Retension Pharmaceuticals
• Rilian Technologies
• ScreenSteps
• Smoothstack
• Zephyr AI
• canopie
• v.law

Investors

• Aafmc
• Aldrich Capital Partners
• Blue Delta Capital Partners
• Bluestone Investment
• Cobro Ventures
• FJ Capital
• Merlin Ventures
• Sinewave Ventures

R&D labs

Capital One, Federal Highway Administration, US Department of Defense, US Department of Homeland Security, US Department of Transportation, US Treasury and partners.