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Spark Capital

Venture capital firm; participated in Cambridge Aerospace's funding rounds through 2025.

Spark Capital Partners, LLC is an American multi-stage venture capital firm founded in 2005 by Todd Dagres, Santo Politi, Paul Conway, and Bijan Sabet, headquartered in Boston with additional offices in San Francisco and New York. It invests across consumer internet, enterprise software, gaming, infrastructure, hardware/semiconductors, crypto, fintech, and AI, and has backed Twitter, Slack, Oculus, Discord, Affirm, Plaid, and Anthropic. It led Cambridge Aerospace's ~$100M Series A (October 2025).

Overview

Firm
Spark Capital
Headquarters
Boston, MA, USA
Founded
2005
AUM
~$15 billion
Stages
Seed, Series A, Series B, Series C, Growth
Thesis
Product-first, conviction-driven investor that backs founders "we admire" rather than following a rigid sector formula, often taking non-consensus positions. No defense-specific thesis publicly stated; the Cambridge Aerospace deal reads as an extension of its deep-tech/hardware interest.

Portfolio companies1

Partners0

No linked records yet.

Frequently asked

What is Spark Capital?
Product-first, conviction-driven investor that backs founders "we admire" rather than following a rigid sector formula, often taking non-consensus positions. No defense-specific thesis publicly stated; the Cambridge Aerospace deal reads as an extension of its deep-tech/hardware interest.
How much does Spark Capital manage?
Spark Capital manages ~$15 billion in assets, and was founded in 2005.
What stages does Spark Capital invest at?
Spark Capital invests at Seed, Series A, Series B, Series C, Growth.

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Sources & citations3

Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.

  1. 1

    Spark Capital was founded in 2005 and has backed companies including Twitter, Tumblr, Slack, Oculus, and Discord.

    Wikipedia: Spark Capital
    Verified2026-08-08
  2. 2

    Spark Capital's principal office and place of business is 200 Clarendon Street, 59th Floor, Boston, MA 02116.

    U.S. SEC: Form ADV, Spark Capital Partners LLC, CRD #161231
    Verified2026-03-27
  3. 3

    Spark Capital led Cambridge Aerospace's roughly $100M Series A, alongside Lakestar, Accel, Lux Capital, and D3.

    Tech Funding News: Cambridge Aerospace seeks $300M at $3.5B valuation as NATO militaries hunt cheaper ways to kill drones
    Verified2025-10-01