Venture Capital

Spark Capital

Spark Capital is a multi-stage venture capital firm founded in 2005 by Paul Conway, Santo Politi, Todd Dagres, and Bijan Sabet, with offices in San Francisco, New York, and Boston. Spark is a generalist firm that partners with founders from seed through growth across consumer internet, enterprise software, artificial intelligence, gaming, crypto, fintech, infrastructure, hardware and semiconductors, life sciences, aerospace, and the future of work. The firm invests from a family of early-stage funds (most recently a $700M fund in 2024) and dedicated growth funds (most recently a $1.4B fund in 2024), and press reports have placed its assets under management in the range of $12-15 billion. Spark first became widely known for leading Twitter's Series B in 2008 and has since backed a run of defining companies including Slack, Discord, Snap, Coinbase, Affirm, Plaid, Cruise, Oculus, Scale AI, Ramp, Deel, and Anthropic, whose Series C investment the firm turned into one of venture's largest recent markups. Spark rebranded in 2020 with design studio Pentagram around its distinctive dog-themed identity, and publishes a curated set of portfolio companies rather than a full list.

48 portfolio companies 48 publish APIs here 9 properties
Venture CapitalSeedSeries ASeries BGrowth EquityArtificial IntelligenceFintechCryptoConsumer InternetEnterprise SoftwareInfrastructureSemiconductorsSan FranciscoBostonNew YorkNorth America
Portfolio Strength across 25 profiled portfolio companies on the network
8 top-rated API companies 4 exemplar · 4 strong
11 agent-ready companies 2 agent-native · 9 agent-ready
Average quality of the book:
Composite thin 42.1
Agent-Readiness agent-aware 24.5

Firms are ranked by cumulative portfolio strength — how many highly-rated API companies they've backed, weighted by tier across composite quality and agent-readiness. The averages below are a secondary read on the typical company in the book.

Spark Capital has 48 portfolio companies tracked on the APIs.io network, of which 25 (52%) publish APIs indexed here. The remaining 23 are tracked as profiles without a published API on the network.

Its highest-rated API providers on the network are Anthropic, Plaid, Benchling, Deel, Slack.

Portfolio on the Network

Portfolio companies that publish APIs indexed on APIs.io, grouped by their API Evangelist rating. Exemplar and Strong are expanded by default.

Exemplar 4 Complete, well-documented, and agent-ready
Strong 4 Solid coverage with minor gaps
Developing 7 Usable, with meaningful gaps to close
Thin 6 Limited public surface area
Emerging 3 Early or largely undocumented
Minimal 1 Almost no public developer surface

Properties

Portfolio

Where the firm publishes its investments

Team

Partners and investing staff

Firm

The firm itself

Cohort brief

Auto-generated

The 43 portfolio companies with APIs in the catalog, backed by Spark Capital, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
43
of 48 on the roster
Mean Kin Score
31.2
+6.8 vs catalog 24.4
Mean Agent Readiness
15.8
+3.1 vs catalog 12.7
Spread
5–77.8
median 25.2 · σ 22.7
How the 43 split by band
Exemplar 4Strong 4Developing 7Thin 6Emerging 11Minimal 11
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Operational Transparency 22.7 14.4 +8.3 43
Contract Quality 27.9 20.4 +7.5 43
Developer Ergonomics 31 23.8 +7.2 43
Access Clarity 34.2 27.2 +7 43
Discoverability 63.4 61.5 +1.9 43
Contract Governance 7.7 6.6 +1.1 43

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 12% 11% +1
MCP server (first-party) 16% 13% +3
Agent Skills 0% 0% 0
OAuth scopes 19% 12% +7
Security 100% 96% +4
Arazzo workflows 7% 2% +5
Governance rules 33% 13% +20

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Anthropic 77.8
  2. 2 Plaid 71.6
  3. 3 Benchling 69.4
  4. 4 Deel 66.5
  5. 5 Slack 65.6
  6. 6 Twitter/X 65.4
  7. 7 Snapchat 65.3
  8. 8 Parallel 65
  9. 9 Ramp 52.3
  10. 10 Flock Safety 49.9
Top by Agent Readiness
  1. 1 Parallel 65
  2. 2 Twitter/X 58.2
  3. 3 Deel 48.6
  4. 4 Snapchat 46.9
  5. 5 Benchling 41.3
  6. 6 Plaid 40.5
  7. 7 Ramp 39
  8. 8 Anthropic 37.7
  9. 9 Flock Safety 36.5
  10. 10 Slack 34.4
This roster declares 48 members; 44 resolve to a provider in the catalog and 43 carry a score (98%). The figures above describe the scored members only.Generated from the catalog build of 22 September 2026, across 27674 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Source (apis.yml)

apis.yml Raw ↑
aid: spark-capital
name: Spark Capital
description: >-
  Spark Capital is a multi-stage venture capital firm founded in 2005 by Paul Conway, Santo Politi,
  Todd Dagres, and Bijan Sabet, with offices in San Francisco, New York, and Boston. Spark is a
  generalist firm that partners with founders from seed through growth across consumer internet,
  enterprise software, artificial intelligence, gaming, crypto, fintech, infrastructure, hardware and
  semiconductors, life sciences, aerospace, and the future of work. The firm invests from a family of
  early-stage funds (most recently a $700M fund in 2024) and dedicated growth funds (most recently a
  $1.4B fund in 2024), and press reports have placed its assets under management in the range of
  $12-15 billion. Spark first became widely known for leading Twitter's Series B in 2008 and has since
  backed a run of defining companies including Slack, Discord, Snap, Coinbase, Affirm, Plaid, Cruise,
  Oculus, Scale AI, Ramp, Deel, and Anthropic, whose Series C investment the firm turned into one of
  venture's largest recent markups. Spark rebranded in 2020 with design studio Pentagram around its
  distinctive dog-themed identity, and publishes a curated set of portfolio companies rather than a
  full list.
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://www.sparkcapital.com/favicon.ico
x-type: venture-capital
x-category: Venture Capital
created: '2026-07-17'
modified: '2026-07-17'
specificationVersion: '0.23'
tags:
  - Venture Capital
  - Seed
  - Series A
  - Series B
  - Growth Equity
  - Artificial Intelligence
  - Fintech
  - Crypto
  - Consumer Internet
  - Enterprise Software
  - Infrastructure
  - Semiconductors
  - San Francisco
  - Boston
  - New York
  - North America
apis: []
common:
  - type: Website
    url: https://www.sparkcapital.com/
  - type: Portfolio
    url: https://www.sparkcapital.com/companies
  - type: Portfolio
    url: portfolio/spark-capital-portfolio.yml
  - type: Team
    url: https://www.sparkcapital.com/team
  - type: Team
    url: team/spark-capital-team.yml
  - type: InvestmentThesis
    url: https://www.sparkcapital.com/about
  - type: Crunchbase
    url: https://www.crunchbase.com/organization/spark-capital
  - type: LinkedIn
    url: https://www.linkedin.com/company/spark-capital
  - type: Twitter
    url: https://twitter.com/sparkcapital
  - type: Features
    data:
      - "Stage: Seed through growth (multi-stage generalist)"
      - "Sectors: Consumer internet, enterprise software, AI, gaming, crypto, fintech, infrastructure, hardware/semiconductors, life sciences, aerospace, future of work"
      - "Geography: Primarily North America (offices in San Francisco, New York, Boston)"
      - "AUM: ~US$12-15B (press-reported)"
      - "Funds: 8 early-stage funds (latest $700M, 2024) and 5 growth funds (latest $1.4B, 2024)"
      - "Founded: 2005"
      - "HQ: Boston, Massachusetts, USA (with San Francisco and New York offices)"
      - "Founders: Paul Conway, Santo Politi, Todd Dagres, Bijan Sabet"
    sources:
      - https://www.sparkcapital.com/
      - https://en.wikipedia.org/wiki/Spark_Capital
    updated: '2026-07-17'
maintainers:
  - FN: Kin Lane
    email: info@apievangelist.com
    url: https://apievangelist.com
  - FN: APIs.json
    url: http://apisjson.org
  - FN: Spark Capital
    url: https://www.sparkcapital.com/

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