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Venture capital database
Stage not specified
Riot Ventures
Los Angeles, California, United States
Riot Ventures invests in defense, space, nuclear and energy, industrials, autonomy across Stage not specified. Every displayed company relationship links to an investor-controlled source.
Strategy lens
Declared focus vs. observed sample
Declared focus reflects the firm’s own strategy language. Observed sectors summarize only the source-linked companies currently indexed here; it is not the firm’s complete portfolio allocation.
AI pilots and defense autonomy1
hyperscaler infrastructure1
industrial heat1
mass-manufactured nuclear reactors1
orbital defense1
satellite manufacturing1
Founder fit screen
Prepare before contacting Riot
Use the firm’s declared strategy and sourced relationship graph to build a specific outreach thesis. This is a preparation framework—not a claim about current appetite or check size.
Stage fit
Explain why the company belongs in Stage not specified and what proof has already removed the prior stage’s risk.
Sector fit
Anchor the opportunity to defense, space, nuclear and energy. Name the specific market shift and why it is happening now.
Partner fit
Review 2 indexed team profiles. Address the partner whose operating history and portfolio context best match the company.
Portfolio context
Study the 6 source-linked companies shown here. State whether the company is complementary, differentiated, or potentially competitive.
Evidence packet
Bring customer proof, cohort or deployment metrics, gross-margin logic, capital use, key risks, and the milestone this financing should unlock.
Contact route
Use the firm’s public route and keep the request precise: company, stage, round, traction, why this firm, and one clear next step.
Key people
Official team source Who shapes the partnership
Investor
Stephen Marcus
Investor at Riot Ventures, with firm-level focus spanning defense, space, nuclear and energy, industrials.Investor
Will Coffield
Investor at Riot Ventures, with firm-level focus spanning defense, space, nuclear and energy, industrials. Selected relationships
Official portfolio source Investments listed by the firm
AI pilots and defense autonomy
Official sourceShield AI
Open the company graph to see founders and every indexed investor relationship.
orbital defense
Official sourceTrue Anomaly
Open the company graph to see founders and every indexed investor relationship.
hyperscaler infrastructure
Official sourceOxide Computer Company
Open the company graph to see founders and every indexed investor relationship.
mass-manufactured nuclear reactors
Official sourceValar Atomics
Open the company graph to see founders and every indexed investor relationship.
satellite manufacturing
Official sourceEnduroSat
Open the company graph to see founders and every indexed investor relationship.
industrial heat
Official sourceKarman Industries
Open the company graph to see founders and every indexed investor relationship.
Co-investment map
Firms sharing listed companies
Ranked by shared companies in this indexed dataset—not necessarily the same financing round.
Help complete the graphClaim or improve
Claim or improve
Riot Ventures.
Founders, firm teams, investors, and careful researchers can submit a missing fact or correction. Every change enters a review queue and requires public evidence.
- No unsourced edits
- Identity and scope reviewed
- Existing claims retain history
Source discipline
This dossier uses publicly available firm pages for team, strategy, and portfolio context. It does not infer check size, ownership, valuation, current holding status, or availability for introductions.