Two domain name-related companies made the list of fastest-growing companies.
Identity Digital, a domain name company that specializes in providing domain name registration and related services, made the Inc. 5000 list again this year, marking the fourth consecutive year that the top-level domain registrar has made the list.
The Inc. 5000 list is an annual list of the 5,000 fastest-growing companies in the United States published by Inc. magazine. These companies, which are typically privately held, have experienced significant growth in revenue or number of employees over the past several years. The list recognizes these companies for their achievements in economic development, innovation and entrepreneurship. Companies named to the Inc. 5000 list are typically highly reputable and influential in their industries.

Identity Digital was ranked 3,235th based on three-year revenue growth. During this period, the company realized 152 percent growth.
Identity Digital operates hundreds of top-level domains, including new top-level domains such as .guru and .money, country code top-level domains such as .io, and older domains such as .info. The company also operates the back end of the .org registry.
Domain name data company Whois API came in at No. 1,847 on the list with a growth rate of 273 percent. The company has been on the list every year since 2017, except for 2020.