This year, 99 African American-led businesses made the Inc. 5000 list of the fastest-growing private companies in the country, measured by revenue growth over the past three years. The top 10 comprise a wide range of companies and industries, from IT to staffing to real estate. Here's a look at that distinguished group.

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10. IBOX Global

2018 Inc. 5000 rank No. 357 Three-year growth 1,412% 2017 revenue $6.6M

Atlanta-based IBOX Global offers IT consulting, security, and support to government agencies, corporations, and public-sector organizations. The company, which works with clients such as the National Park Service, has a lot to celebrate this year--2018 is the 10-year anniversary of its founding.

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9. Ensunet Technology Group

2018 Inc. 5000 rank No. 355 Three-year growth 1,478% 2017 revenue $3M

Ensunet Technology Group, which offers a range of IT management services, was founded by Paul Robinson in 2008. The company also ranks on the Inc. 5000 as the sixth-fastest-growing company in the San Diego metro area.

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8. 2M Research

2018 Inc. 5000 rank No. 285 Three-year growth 1,706% 2017 revenue $9.5M

Founded by Dr. Marcus Martin and Dr. Eddilisa Martin, 2M Research is a research and advisory firm headquartered in Arlington, Texas. The company specializes in research for government clients.

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7. BarnAllen Technologies

2018 Inc. 5000 rank No. 273 Three-year growth 1,815% 2017 revenue $54.5M

This IT company specializes in health information management for high-profile government clients including the Federal Trade Commission and the Executive Office of the President of the United States. The company appears on the Inc. 5000 list for the third year in a row. Located in Rockville, Maryland, BarnAllen Technologies is also among the fastest-growing companies in the state on 2018's Inc. 5000.

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6. Cetechs

2018 Inc. 5000 rank No. 266 Three-year growth 1,827% 2017 revenue $6.6M

Cetechs, a Mesa, Arizona-based staffing firm, helps clients in Arizona with staffing and IT solutions.The company's founder, Wilbert Johnson, is a U.S. Army veteran, and the company works with government clients such as the U.S. Air Force.

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5. Capitol Bridge

2018 Inc. 5000 rank No. 239 Three-year growth 2,004% 2017 revenue $3.1M

Also one of the fastest-growing franchise businesses on this year's Inc. 5000 list, Arlington, Virginia's Capitol Bridge offers strategic advisory and professional services to government customers, including the U.S. Army. 

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4. Y-Tech

2018 Inc. 5000 rank No. 224 Three-year growth 2,103% 2017 revenue $11.7M

Providing IT and consulting services to federal and state government clients, Y-Tech is also the second-fastest-growing Baltimore company on this year's Inc. 5000, as well as one of the top 20 government services companies.

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3. ARM Consulting

2018 Inc. 5000 rank No. 203 Three-year growth 2,230% 2017 revenue $3M

ARM Consulting, based in Leesburg, Virginia, focuses on the HR, technology, and health care industries. The company specializes in servicing government clients, including the Department of State and the Defense Health Agency. 

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2. Compass

2018 Inc. 5000 rank No. 71 Three-year growth 4,309% 2017 revenue $370.6M

Compass, a real estate listing app that helps buyers find properties in popular locations like New York, Chicago, and Aspen, has been gaining attention ever since its 2012 launch. Its rapid growth is a reminder that long gone are the days when consumers' best option was to scroll through Craigslist postings.

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1. Diversified Protection

2018 Inc. 5000 rank No. 40 Three-year growth 6,574% 2017 revenue $36.6M

Headquartered in Las Vegas, Diversified Protection provides security services including locksmithing, ID badges, and even bodyguards. Besides being the fastest-growing African American-led company, Diversified Protection is among the Inc. 5000's top security businesses and top companies in Las Vegas.