Infinitum
About Infinitum
Growth investor; co-led Groq's 2026 round.
Infinitum Partners is listed on Crunchbase as a private firm based in Miami, Florida. Crunchbase describes it as a venture and crossover hedge fund investor focused on semiconductors, videogaming, software and marketplace companies. The legal entity is shown as Infinitum Asset Management, LLC, with a headcount of 1-10. John Yetimoglu is named as founder and Chief Investment Officer. The founding year is not public in the sources reviewed, and no fund names or fund sizes were found. The firm's website is infinitumpartners.com. This firm is not the Texas electric motor company that also uses the name Infinitum.
Infinitum's AI investing centers on compute and the data and tooling that feed AI models. It co-led Groq's $650M growth round with Disruptive. Groq is a San Francisco AI inference cloud company, and it said the funding will support its global infrastructure buildout, including 13 data centers across North America, Europe, the Middle East and APAC. Labelbox's CEO wrote that Yetimoglu was an early investor in Groq and is now involved in building large-scale compute infrastructure at GroqCloud. In October 2026 Infinitum led Labelbox's Series E. That round paired equity with a credit facility, so the firm has led at least one deal that was not purely equity.
Infinitum's public AI activity is at the growth stage: a $650M growth round at Groq and a Series E at Labelbox. Its own check sizes are not disclosed. The round totals above are for the whole round, not Infinitum's share. The Labelbox round was reported as more than $100M, at a $1.25B pre-money valuation. The firm has not published a stated stage or check size range.
- Groq: AI inference chips and cloud. Infinitum co-led its $650M growth round in 2026 with Disruptive, and Yetimoglu was an earlier investor.
- Labelbox: training data, reinforcement learning environments and managed agents for AI developers and enterprises. Infinitum led its Series E of more than $100M (equity plus credit facility) in October 2026, with Wipro Ventures, a16z, B Capital, Tau Ventures and Snowpoint Ventures participating.
Investing activity
Infinitum appears in 3 AI deals tracked by the AI Lounge deals desk, rounds totalling $1.37B, and led 2 of them. The rounds are mostly Series D and Growth, with a median round size of $650M. The most recent are FuriosaAI (Series D, $620M, Oct 2026), Labelbox (Series E (equity + credit facility), $100M, Oct 2026) and Groq (Growth, $650M, Jul 2026).
Infinitum most often invests alongside National Growth Fund of Korea, Jericho Capital, QUDA Capital and Cisco Investments, and the companies it backs on AI Lounge are mostly in AI inference chips, AI training data / RL environments and AI inference chips & cloud.
Deals
Frequently asked questions about Infinitum
Who runs Infinitum's AI investing?
John Yetimoglu, founder and Chief Investment Officer, is the person named in public sources. He is tied to both the Groq and Labelbox relationships. The firm does not publish a full partner list.
What AI companies has Infinitum invested in?
Public sources show Groq, where it co-led a $650M growth round in 2026, and Labelbox, where it led a Series E of more than $100M in October 2026. No other AI investments were confirmed.
What stage and check size does Infinitum invest at?
Its disclosed AI deals are growth-stage rounds. Infinitum has not published check sizes, so only whole-round sizes are known.
Where is Infinitum based and when was it founded?
Crunchbase lists Infinitum Partners in Miami, Florida, United States. A founding year was not available in the sources reviewed.
Does Infinitum invest in early-stage AI startups?
No early-stage AI deals by Infinitum were found in the public sources reviewed. Its confirmed AI deals are large, later-stage rounds.
Where is Infinitum based?
Infinitum is based in US.
What stage does Infinitum invest at?
In the rounds tracked on AI Lounge, Infinitum has invested at Series D and Growth, with a median round of $650M. Infinitum led 2 of those rounds.
Who does Infinitum co-invest with?
Infinitum's most frequent co-investors on AI Lounge are National Growth Fund of Korea (1 deal), Jericho Capital (1 deal), QUDA Capital (1 deal), Cisco Investments (1 deal) and DSC Investment (1 deal).
How can founders reach Infinitum?
Founders on AI Lounge can see Infinitum's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with the firm under Warm Paths, and add Infinitum to their Investor Pipeline to track the conversation.