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Startup investors in Denver–Boulder

17 investors based in Denver–Boulder filed a new fund, deal vehicle or board seat with the SEC in the last 12 months, 5 (29%) of them in the last 90 days. The most common sectors are Deep Tech (4), B2B Software (3) and AI & ML (2). For the 15 with a stated or estimated check size, the median range is $450K–$1.5M. Counted by the office address on their SEC filings; many invest well beyond Denver–Boulder.

Updated from SEC filings · How we build this list

Who are the most active startup investors in Denver–Boulder?

By new SEC filings in the last 12 months, the most active are Denver Angels, Industrious Ventures Growth, Blackhorn, Unmet Frontier and Massive.

How many startup investors in Denver–Boulder are investing right now?

17 filed a new fund, deal vehicle or board seat with the SEC in the last 12 months, 5 of them in the last 90 days.

How much do startup investors in Denver–Boulder typically invest?

The median estimated check is $450K–$1.5M, across 15 investors with a plausible estimate. Actual checks vary by round and lead role.

What sectors do startup investors in Denver–Boulder back most?

Deep Tech (4), B2B Software (3) and AI & ML (2) lead, by investors with recent activity in each.

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  • Denver AngelsSyndicate · Denver, CO

    Pre-seed to Series B · checks $250K–$3M (est.)

    ConsumerReal Estate & PropTechHealthcareB2B Software+1

  • Industrious Ventures GrowthVC firm · Denver, CO

    Pre-seed, Seed · checks $50K–$200K (est.)

    Sector focus not yet verified

  • BlackhornVC firm · Denver, CO

    Seed · checks $1.5M–$4.5M (est.)

    Industrial & ManufacturingAI & MLFood & Agriculture

  • Unmet FrontierVC firm · Denver, CO

    Seed, Series A

    Deep Tech

  • MassiveSyndicate · Boulder, CO

    Pre-seed, Seed · checks $75K–$200K (est.)

    Sector focus not yet verified

  • Delta-v Capital Digital InfrastructureVC firm · Denver, CO

    Seed, Series A · checks $750K–$2.25M (est.)

    Developer ToolsDeep Tech

  • FirehunterVC firm · Denver, CO

    Pre-seed, Seed · checks $250K–$750K (est.)

    Sector focus not yet verified

  • KEY Investment PartnersSyndicate · Denver, CO

    Pre-seed, Seed · checks $375K–$750K (est.)

    Deep TechDefense & AerospaceClimate & Energy

  • Industrious Decimal VenturesVC firm · Denver, CO

    Pre-seed, Seed · checks $500K–$1.5M (est.)

    Sector focus not yet verified

  • MonCap FertilityVC firm · Boulder, CO

    Pre-seed, Seed · checks $400K–$1.2M (est.)

    Healthcare

  • Techstars AcceleratorAccelerator · Boulder, CO

    Pre-seed, Seed · checks $1.5M–$4.5M (est.)

    Sector focus not yet verified

  • Hannah Grey VenturesVC firm · Denver, CO

    Pre-seed, Seed · checks $350K–$1M (est.)

    B2B SoftwareConsumerMedia, Gaming & CreatorAI & ML

  • Nomadic VPVC firm · Denver, CO

    Seed, Series A

    Sector focus not yet verified

  • Boulder VenturesVC firm · Boulder, CO

    Seed, Series A · checks $600K–$1.8M (est.)

    Biotech & PharmaDeep Tech

  • Saints CapitalVC firm · Denver, CO

    Seed, Series A · checks $1.02M–$3.1M (est.)

    Media, Gaming & CreatorCybersecurityFintech

  • Range Technology VenturesVC firm · Denver, CO

    Pre-seed to Series A · checks $450K–$1.35M (est.)

    B2B SoftwareBiotech & Pharma

  • Altira TechnologyVC firm · Denver, CO

    Seed to Series B · checks $2M–$6M (est.)

    Climate & Energy