Spark Capital
About Spark Capital
Lounge's deals desk logs eight AI rounds involving Spark Capital in 2026, and marks the firm as lead in six of them. The logged rounds range from a $6.8M pre-seed round for HiringCafe in September 2026 to a $325M Series C for ASI in October 2026. The firm's AI rounds on the desk include Baseten's $1.5B Series F in July 2026 and Lumilens' $700M Series A in August 2026.
Spark Capital is tagged on Lounge for pre-seed, seed, Series A, Series B and Series C+ investments. No check sizes are listed in the sources used for this profile.
- Lumilens: Series A, $700M (August 2026), led
- Baseten: Series F, $1.5B (July 2026), led
- Generalist AI: Series B, $400M (June 2026)
- Oratomic: Series A, $300M (July 2026), led
- RadixArk: Seed, $100M (January 2026), led
- Core Automation: Seed, $100M (April 2026)
- HiringCafe: Pre-seed, $6.8M (September 2026), led
- ASI: Series C, $325M (October 2026), led
Investing activity
Spark Capital appears in 8 AI deals tracked by the AI Lounge deals desk, rounds totalling $3.42B, and led 6 of them. The rounds are mostly Series A, Seed and Series C, with a median round size of $325M and the largest at $1.5B. The most recent are ASI (Series C, $325M, Oct 2026), HiringCafe (Pre-seed, $6.8M, Sep 2026) and Lumilens (Series A, $700M, Aug 2026).
Spark Capital most often invests alongside Nvidia, Meritech Capital, Accel and Citadel Securities, and the companies it backs on AI Lounge are mostly in AI simulation and monitoring, AI and AI connectivity / photonics.
Deals
Frequently asked questions about Spark Capital
Where is Spark Capital headquartered?
Spark Capital is headquartered in San Francisco, United States. The firm is listed on Lounge as a venture capital firm.
What stages does Spark Capital invest in?
Lounge lists Spark Capital at the pre-seed, seed, Series A, Series B and Series C+ stages. Check sizes are not listed on this profile.
Which AI rounds has Spark Capital led recently?
Lounge's deals desk marks Spark Capital as lead in six 2026 AI rounds, including Baseten's $1.5B Series F and ASI's $325M Series C. The full list is in the portfolio section of this page.
Does Spark Capital back AI infrastructure companies?
Its AI rounds on the Lounge deals desk include Baseten, which raised a $1.5B Series F in July 2026. Founders can review the full list of logged AI rounds on this page.
Where can I find Spark Capital's website and LinkedIn?
The firm's website is sparkcapital.com, and its LinkedIn company page is linked from this profile. No X account is listed in the sources used.
What AI companies has Spark Capital invested in?
Spark Capital's AI investments include ASI, HiringCafe, Lumilens, Oratomic, Baseten, Generalist AI, Core Automation and RadixArk. The 8 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Spark Capital based?
Spark Capital is based in San Francisco, US.
What stage does Spark Capital invest at?
In the rounds tracked on AI Lounge, Spark Capital has invested at Series A, Seed, Series C and Pre-seed, with a median round of $325M. Spark Capital led 6 of those rounds.
Who does Spark Capital co-invest with?
Spark Capital's most frequent co-investors on AI Lounge are Nvidia (4 deals), Meritech Capital (2 deals), Accel (2 deals), Citadel Securities (1 deal) and Craft Ventures (1 deal).
How can founders reach Spark Capital?
Founders on AI Lounge can see Spark Capital'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 Spark Capital to their Investor Pipeline to track the conversation.