Top Series A companies in the United States
Companies that have closed a Series A - product-market fit confirmed and scaling. Filtered to companies headquartered in the United States.
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- StageSeries A
- HQthe United States
- Matches6,557
Built from a search like: “Top Series A companies in the United States”
Ranked by current headcount across Series A companies headquartered in the United States. Refreshed monthly.
- 1Indeed· Austin, Texas, United States
More people get jobs on Indeed than anywhere else. As the world’s #1 job site (Comscore, Total Visits, March 2026), Indeed is a global hiring platform connecting over 685 million Job Seeker Profiles with 3.5 million employers across more than 60 countries. Indeed uses AI and real-time data to match people with relevant opportunities and help employers hire faster. With platforms including Glassdoor and Indeed Flex, Indeed is reshaping how people discover jobs, research companies, and access flexible work. Indeed is a subsidiary of Recruit Holdings, a global leader in HR technology and business solutions dedicated to simplifying hiring and transforming the world of work.**Indeed data (worldwide), job seeker accounts that have a unique, verified email address.
- Series A
- 20.1k employees
- Founded 2004
- 2Sony Pictures Entertainment· Culver City, California, United States
Sony Pictures Entertainment (SPE) is a subsidiary of Tokyo-based Sony Group Corporation. SPE's global operations encompass motion picture production and distribution; television production and distribution; digital content creation and distribution; worldwide channel investments; home entertainment acquisition and distribution, operation of studio facilities; development of new entertainment products, services and technologies; and distribution of filmed entertainment in more than 130 countries.
- Series A
- 8.5k employees
- Founded 1987
- 3Temu· Boston, Massachusetts, United States
Temu is an e-commerce company that connects consumers with millions of merchandise partners, manufacturers and brands with the mission to empower them to live a better life. Temu is committed to bringing affordable products onto its platform to enable consumers and merchandise partners to fulfill their dreams in an inclusive environment. Temu was founded in Boston, Massachusetts in 2022.
- Series A
- 8.2k employees
- Founded 2022
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- 4Isagenix· Gilbert, Arizona, United States
Established in 2002, Isagenix International has created simple, scientifically proven products that optimize human health and performance. The global wellness company, based in Gilbert, Arizona, provides more than 175 effective products and offers a supportive community for its customers worldwide. Offering easy-to-use products and systems people can share. Isagenix markets their products through a network of independent distributors in 23 key markets: the United States, Canada, Puerto Rico, Australia, New Zealand, Mexico, the United Kingdom, Ireland, the Netherlands, Belgium, Spain, Austria, Denmark, Finland, France, Germany, Italy, Japan, Norway, Poland, Portugal, Sweden, and Switzerland. For more information, visit Isagenix.com.
- Series A
- 7.1k employees
- Founded 2002
- 5Cvent· Mc Lean, Virginia, United States
Join #CventNation! www.cvent.com/careersWhat We Do: Cvent is a global market-leading meetings, events, & hospitality technology provider. Our Mission: To bring people together, power the human connection and transform the meetings & events industry through innovative technology.Who We Are: With 5,500+ employees & 30,000 customers, we're one of the largest event technology companies in the world, & we're always looking for the next generation of Cventers to join #CventNation!Cvent is consistently recognized as a Top Workplace by The Washington Post, Washington Business Journal, & certified as a Great Place to Work in the US, UK, & India, among other regional & international accolades.**Career Fraud Alert: In today's digital-first world, fraudulent job offers and hiring manager impersonations, often via social media or chat/messaging apps, continue to increase. To protect yourself, verify all communications come from a legitimate Cvent email (name@cvent.com) and be cautious of requests for personal information, unsolicited messages, and offers via chat or social media. If you suspect fraud, contact HRHelp@cvent.com immediately and apply for positions directly through our careers site at https://careers.cvent.com. Your safety and security are our priority.
- Series A
- 6.8k employees
- Founded 1999
Find engineers at Series A companies in the United States
Series A companies in the United States are some of the fastest-moving employers in the market. The list above ranks the largest Series A-stage companies headquartered in the United States by current headcount, drawn from public LinkedIn and Crunchbase records. With 6,557 matching companies in Refolk’s index, the density of senior engineers, designers, and founders is unusually high.
At Series A, teams tend to be small, ambitious, and on the hunt for senior talent. The companies on this list are good signals for where the the United States talent market is heating up - and for which engineers and founders are about to become tomorrow’s operators.
Refolk converts this list into a live search. Ask for “founders of Series A companies in the United States” or “senior engineers at Series A companies in the United States hiring” and Refolk returns a ranked shortlist with evidence behind each match.
How this list is built
Last refreshed: Tue, 20 Oct 2026 13:56:06 GMT
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How is this ranking built?
The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.
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The underlying index updates continuously and this ranking is rebuilt monthly. Last refreshed: Tue, 20 Oct 2026 13:56:06 GMT. For a list built against the index as it stands today, sign up and run the search live.
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- Staff backend engineers in NYC who shipped Rust in production
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