# Spark Capital

> Spark Capital is a privately held, multi-stage venture capital firm investing in technology companies from seed and Series A through growth. Founded in 2005, it combines early-stage and growth funds with direct founder guidance, and has backed companies including Twitter, Tumblr, Oculus, Slack, Coinbase, Discord, Affirm, Plaid and Anthropic. Its thesis is intentionally product-led and anti-formula: find creators with unusual conviction, help without trying to run the company, and remain useful through a long build.

- **Founded:** 2005
- **Headquarters:** San Francisco, United States
- **Founders:** Todd Dagres (Co-founder and General Partner), Santo Politi (Co-founder and General Partner), Bijan Sabet (Co-founder and General Partner), Paul Conway (Co-founder)
- **Team size:** Approximately 48 people; LinkedIn lists the firm in the 11-50 employee range.
- **Products:** Early-stage venture investing, Growth investing, Founder support, Limited-partner fund management
- **Notable:** Led Twitter's Series B in 2008 and became one of the social network's important early institutional backers., Backed Tumblr before its 2013 acquisition by Yahoo for approximately $1.1 billion., Invested in Oculus before Facebook acquired the virtual-reality company in 2014.

## Products & services

- **Early-stage venture investing** — Seed and Series A investing, often as an early institutional partner, with reserves and guidance for follow-on growth.
- **Growth investing** — Dedicated growth capital for later-stage technology companies, including businesses Spark backed earlier and companies new to the firm.
- **Founder support** — Board work, recruiting help, strategic counsel, fundraising support and access to an operating network, delivered without claiming to run the company.
- **Limited-partner fund management** — Long-duration venture and growth vehicles that pool institutional and other limited-partner capital across diversified technology portfolios.

## Achievements

- Led Twitter's Series B in 2008 and became one of the social network's important early institutional backers.
- Backed Tumblr before its 2013 acquisition by Yahoo for approximately $1.1 billion.
- Invested in Oculus before Facebook acquired the virtual-reality company in 2014.
- Backed public-company outcomes including Twitter, Slack, Coinbase, Affirm and Snap.
- Built a portfolio spanning category-defining consumer, enterprise, fintech, crypto, health and AI businesses.
- Expanded from early-stage venture into a dedicated growth strategy in 2014.
- Closed $3.3 billion across its ninth early-stage fund and sixth growth vehicle in 2026.

## Latest updates

- **2026-07** — Spark announced $3.3 billion in new funds to invest from the earliest stages through growth.
- **2026-05** — Spark co-led RadixArk's $100 million seed round to build open infrastructure for training and serving frontier AI models.
- **2026-04** — Spark led Mastra's $22 million Series A for its open-source TypeScript framework for AI agents.
- **2026-04** — An SEC Form D identified Spark Capital IX, confirming the firm's ninth flagship venture vehicle.
- **2024-03** — Spark closed $2.3 billion across Spark Capital VIII and Spark Growth V.

## Links

- Website: https://www.sparkcapital.com/
- LinkedIn: https://www.linkedin.com/company/spark-capital-llc
- Twitter/X: https://x.com/sparkcapital
- Facebook: https://www.facebook.com/pages/Spark-Capital/8810462652

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Profile page: https://yespress.io/spark-capital
Published by YesPress — https://yespress.io
Last updated: 2026-08-17