Top Late-stage venture AI companies

Companies building AI products, foundation models, and applied ML platforms. Filtered to companies whose latest disclosed round is Late-stage venture.

Edit the query above, or pick a refinement. 500 free credits on sign-up, no card needed.

Built from a search like: “Top Late-stage venture AI companies”

Ranked by current headcount across Late-stage venture AI companies. Refreshed monthly.

1
OpenAI· San Francisco, California, United States
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. AI is an extremely powerful tool that must be created with safety and human needs at its core. OpenAI is dedicated to putting that alignment of interests first — ahead of profit.To achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. Our investment in diversity, equity, and inclusion is ongoing, executed through a wide range of initiatives, and championed and supported by leadership.At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.
- Series unknown
- 10.7k employees
- Founded 2015
2
A*STAR - Agency for Science, Technology and Research· Singapore, Singapore
About the Agency for Science, Technology and Research (A*STAR)The Agency for Science, Technology and Research (A*STAR) is Singapore's lead public sector agency that spearheads economic oriented research to advance scientific discovery and develop innovative technology. Through open innovation, we collaborate with our partners in both the public and private sectors to benefit society. As a Science and Technology Organisation, A*STAR bridges the gap between academia and industry. Our research creates economic growth and jobs for Singapore, and enhances lives by contributing to societal benefits such as improving outcomes in healthcare, urban living, and sustainability. We play a key role in nurturing and developing a diversity of talent and leaders in our Agency and research entities, the wider research community and industry. A*STAR’s R&D activities span biomedical sciences and physical sciences and engineering, with research entities primarily located in Biopolis and Fusionopolis. For ongoing news, visit www.a-star.edu.sg.
- Series unknown
- 6.4k employees
- Founded 1987
3
Anthropic
We're an AI research company that builds reliable, interpretable, and steerable AI systems. Our first product is Claude, an AI assistant for tasks at any scale.Our research interests span multiple areas including natural language, human feedback, scaling laws, reinforcement learning, code generation, and interpretability.
- Series H
- 6k employees
- Founded 2021
Live search
This list is a starting point
I can run a natural-language search across LinkedIn, GitHub, and the open web. Fire one of these, or edit the box up top to match exactly who you're after.
- Late-stage venture AI companies in San FranciscoRun
- Late-stage venture AI companies hiringRun
500 free credits on sign-up, no card needed.
4
ETRI· South Jeolla, South Korea
ETRI (Electronics and Telecommunications Research Institute) will help humanity to realize a Smart World that is more abundant, convenient, and safe by creating harmony between humanity, technology and the environment. Since its foundation in 1976, ETRI, a global ICT research institute, has been making its immense effort to provide Korea a remarkable growth in the field of ICT industry. ETRI delivers Korea as one of the top ICT nations in the World, by unceasingly developing world’s first and best technologies. Korea, the wasteland of Science and Technology, became ICT leading nation through indomitable will and challenging spirit. In the 1980s, one-phone-per-house which brought significant changes to the everyday lives of Koreans was realized by the development of TDX; Time Division Exchange, fully digital electronic switching system. Korea stated to dominate the world’s semiconductor industry by its development of 4M DRAM successfully. During 1990s ETRI once again astonished world by commercializing CDMA for the very first time in the world. In 2000s ETRI developed Terrestrial DMB, WiBro, and 4G LTE-Advanced which became the foundation of Mobile Communication. Building on its past success, ETRI continues to dedicate in R&D to maintain its place among world’s best research institutes leading creative economy. With its vision of being ‘ICT Innovator, For a Great Tomorrow’, ETRI will challenge continuously to develop creative and innovative technologies to be responsible for world ICT industry beyond Korea by creating innovative research achievement, securing global IP competitiveness and establishing world-class advanced management system.
- Series unknown
- 1.9k employees
- Founded 1976
5
Bhaskar
- Series unknown
- 1.6k employees
- Founded 2006

6
Deutsches Forschungszentrum für Künstliche Intelligenz (DFKI)· Kaiserslautern, Rhineland-Palatinate, Germany
The German Research Center for Artificial Intelligence, with sites in Kaiserslautern, Saarbrücken, Bremen, Osnabrück, Oldenburg, Darmstadt and labs in Lübeck and Berlin, is the leading German research institute in the field of innovative software technology. In the international scientific community, DFKI ranks among the most recognized "Centers of Excellence" and currently is the biggest research center worldwide in the area of Artificial Intelligence and its application.The DFKI management consists of Prof. Dr. Antonio Krüger (Technical and Scientific Managing Director, CEO) and Helmut Ditzer (CFO).
- Series unknown
- 1.1k employees
- Founded 1988
7
AIXIAL GROUP· Boulogne-Billancourt, Île-de-France, France
Bringing reliability and expertise to clinical development.Aixial Group is a specialized clinical development partner with the commitment, expertise, and flexibility needed to deliver efficient clinical trials. Aixial Group provides the industry with an innovative and scalable offering, which includes: comprehensive clinical trial design and execution; functional service delivery; resources and platform.For more information, please visit: aixialgroup.com Service Delivery Models:• End to End Clinical Trial Services• Functional Service Provider (FSP) Model• Business Process Outsourcing (BPO) Model• Expert Consulting & Advice• Resourcing & Staffing
- Series unknown
- 552 employees
- Founded 1999
8
SynTech Research Group· La Chapelle-de-Guinchay, Bourgogne-Franche-Comté, France
SynTech Research Group is a leading Agricultural Contract Research Organization (CRO) providing comprehensive contract efficacy, environmental, regulatory, and market support services to agrochemical, biostimulant, biocontrol, and seed companies globally.With a network spanning over 40 countries, SynTech's team of 600+ experienced technicians and managers operate from state-of-the-art Field Stations, Laboratories, and Regulatory service locations to meet our clients' diverse needs.SynTech’s services encompass contract research, product positioning, development, registration, and market support, leveraging our expertise in science, agronomy, and market insights. With over 25 years of industry experience, SynTech is committed to delivering exceptional results for Agrochemical, BioSolutions, and Seeds/Traits customers.For further information, please visit www.syntechresearch.com
- Series unknown
- 467 employees
- Founded 1999
9
EMARKETER· New York, New York, United States
EMARKETER is the go-to forecasts, data, and insights provider for marketing, advertising, and commerce professionals.
- Series unknown
- 325 employees
- Founded 1998
10
Wolfe Research, LLC· New York, New York, United States
Since Wolfe Research, LLC’s founding in 2008, our mission has been to deliver best-in-class research and service—providing timely, rigorous, and unconflicted insights from the most differentiated, thoughtful and driven Analysts on the Street. Today, Wolfe is widely recognized as the premier, scaled independent equity research platform.In 2025, Wolfe ranked #6 in the prestigious Extel All-America Research Poll, outperforming nearly every major firm aside from the largest global investment banks. Our realizable goal is to be each of our client’s most valued research counterparty.Currently, Wolfe features 30+ Analyst teams covering all major GICS sectors, as well as portfolio strategy, economics, Washington policy, accounting, special situations, and technical analysis. Our award-winning QES (Quantitative, Economics & Strategy) team provides investible solutions, data feeds, advanced portfolio analytics, risk-management tools, and thoroughly back-tested alternative data.Wolfe Research and its affiliates currently operate across New York, London, Madrid, Sydney, Toronto, Boston, Mumbai, San Francisco, Los Angeles, Houston, Chicago, and Miami. We continue to actively recruit top talent.
- Series unknown
- 316 employees
- Founded 2008

Reveal 153 more·500 free credits, no card

Find engineers and founders at Late-stage venture AI companies

Late-stage venture AI companies are some of the most active hirers in the market. The list above ranks the largest AI companies whose latest disclosed round is Late-stage venture, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 158 matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.

Companies at this stage in AI share a profile: a working product, fresh capital, and a hiring plan that wants senior people yesterday. Looking at headcount, last round, and HQ side by side gives you a quick read on where AI talent is concentrating right now.

Refolk converts this list into a search. Ask for “Late-stage venture AI founders hiring senior engineers” or “design leads at Late-stage venture AI companies” and Refolk returns a fresh ranked shortlist with the sources behind each match.

How this list is built

Refolk pulled AI companies whose latest disclosed funding round is Late-stage venture from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes monthly.

Last refreshed: Fri, 18 Sep 2026 07:47:33 GMT

Search this list

Need an even more specific search?

Refolk runs natural-language searches across LinkedIn, GitHub, and the open web. Try one of these:

500 free credits on sign-up, no card needed.

Related lists

See all company lists.

Or zoom out

Slice this list a different way

Common questions

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.

How fresh is the data?

The underlying index updates continuously and this ranking is rebuilt monthly. Last refreshed: Fri, 18 Sep 2026 07:47:33 GMT. For a list built against the index as it stands today, sign up and run the search live.

Can I get the full list of 158 companies?

Yes. This page shows the top of the ranking; sign up and I'll run the search live for the complete, current list. You start with 500 free credits, no card required.

Can I find the people inside these companies?

Yes. Ask in plain English - for example "engineering leaders at these companies who joined in the last year" - and I return the specific people, with context on each.

Try it on the search you came here for

Stop building boolean strings. Just describe the person.

Type one sentence. I plan the search, read GitHub, public LinkedIn and Crunchbase records, and the open web as it is right now, and hand back a ranked list with the reason next to every name.

01Describe them
One plain sentence. Role, city, stack, stage, whatever matters to you.
02I read the web live
GitHub, public LinkedIn and Crunchbase records, the open web. Not a database that went stale last quarter.
03You read the shortlist
Ranked, with the reasoning under every name. Open a profile, ask a follow-up, narrow it down.

No boolean, no filters, no seat to buy. One box.
Read at search time, so a profile updated yesterday counts today.
Every step visible as it runs, every name with its reason.

500 free credits on sign-up. No card, no demo call. See real searches.

This list is a starting point