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Series A investors active this year

1,053 US Series A investors filed a new fund, deal vehicle or board seat with the SEC in the last 12 months, 294 (28%) of them in the last 90 days. The top home states are California (337), New York (159) and Massachusetts (92); the most common sectors are AI & ML (171), Healthcare (98) and B2B Software (97). For the 411 with a stated or estimated check size, the median range is $1M–$3.1M. Stage comes from the investor's own website where it says; otherwise from fund size and the rounds it has joined, with angels, syndicates and accelerators counted as pre-seed and seed.

Updated from SEC filings · How we build this list

How many Series A investors are investing right now?

1,053 filed a new fund, deal vehicle or board seat with the SEC in the last 12 months, 294 of them in the last 90 days.

How much do Series A investors typically invest?

The median estimated check is $1M–$3.1M, across 411 investors with a plausible estimate. Actual checks vary by round and lead role.

Where are Series A investors based?

Most are in California (337), New York (159) and Massachusetts (92).

What sectors do Series A investors back most?

AI & ML (171), Healthcare (98) and B2B Software (97) lead, by investors with recent activity in each.

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  • Hanabi CapitalVC firm · Palo Alto, CA

    Seed to Series B · checks $5M–$15M (est.)

    Sector focus not yet verified

  • Tuesday AltoVC firm · Austin, TX

    Seed, Series A

    Biotech & PharmaHealthcare

  • Depth VenturesVC firm · San Francisco, CA

    Seed, Series A

    Biotech & Pharma

  • Wireframe VenturesVC firm · Mill Valley, CA

    Pre-seed to Growth · checks $1M–$3M (est.)

    Climate & EnergyAI & ML

  • Flex CapitalVC firm · San Francisco, CA

    Seed, Series A · checks $500K–$2M (est.)

    HealthcareFintechAI & ML

  • Blueprint EquityVC firm · La Jolla, CA

    Seed to Growth · checks $1M–$10M (est.)

    B2B SoftwareAI & ML

  • George YardVC firm · Reston, VA

    Seed, Series A

    Sector focus not yet verified

  • VoltaVC firm · Naperville, IL

    Seed to Growth · checks $125K–$400K (est.)

    Climate & EnergyMobility & Logistics

  • Safar PartnersVC firm · Cambridge, MA

    Seed to Series B · checks $3M–$9M (est.)

    HealthcareAI & MLIndustrial & ManufacturingClimate & Energy

  • Fusion VCVC firm

    Seed, Series A

    Climate & EnergyDeep Tech

  • 021T CapitalVC firm · Cambridge, MA

    Seed, Series A · checks $1M–$3M (est.)

    Sector focus not yet verified

  • WaverleyVC firm · Palo Alto, CA

    Pre-seed to Series B · checks $500K–$1.5M (est.)

    Climate & EnergyMedia, Gaming & CreatorAI & ML

  • E14Syndicate · Cambridge, MA

    Pre-seed to Series A · checks $500K–$3.55M (est.)

    Hardware & RoboticsAI & MLDeep TechB2B Software+1

  • Breakthrough Energy VenturesVC firm · Boston, MA

    Seed, Series A · checks $1M–$3M (est.)

    Climate & Energy

  • AP CapitalVC firm · New York, NY

    Seed, Series A

    Sector focus not yet verified

  • Black Opal VenturesVC firm · New York, NY

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

    Media, Gaming & CreatorClimate & EnergyHealthcareDeveloper Tools

  • Craft VenturesVC firm · San Francisco, CA

    Seed to Growth

    AI & MLCybersecurity

  • 1616 VenturesVC firm · Nashville, TN

    Seed, Series A · checks $1.5M–$4.5M (est.)

    InsurtechAI & MLE-commerce & Retail

  • Elephant PartnersVC firm · Boston, MA

    Series A to Growth · checks $7M–$21M (est.)

    B2B SoftwareE-commerce & RetailConsumer

  • Branch Venture PartnersVC firm · Boston, MA

    Seed, Series A

    Sector focus not yet verified

  • January VenturesSyndicate · Wellesley Hills, MA

    Pre-seed to Series A · checks $75K–$150K (est.)

    AI & MLHealthcare

  • KeymakerVC firm · Menlo Park, CA

    Seed, Series A

    Sector focus not yet verified

  • AAF VenturesVC firm · San Francisco, CA

    Seed, Series A · checks $1M–$3M (est.)

    Sector focus not yet verified

  • Theory VenturesVC firm · Portola Valley, CA

    Seed to Series B · checks $1M–$3M (est.)

    AI & MLB2B SoftwareDeep Tech

  • PelionVC firm · Salt Lake City, UT

    Series A to Growth · checks $2.48M–$7.4M (est.)

    AI & MLCybersecurity

  • MW VC PrometheusVC firm · Los Angeles, CA

    Seed, Series A · checks $1M–$3M (est.)

    Sector focus not yet verified

  • Picture CapitalVC firm · Oakland, NJ

    Seed to Series B · checks $4M–$12M (est.)

    Sector focus not yet verified

  • CRVVC firm · Palo Alto, CA

    Seed to Growth

    AI & MLCybersecurity

  • Mare LiberumVC firm

    Seed, Series A · checks $1.5M–$4.5M (est.)

    B2B Software

  • PVP ETDAIVC firm · New York, NY

    Seed, Series A

    AI & ML

  • Isogon VenturesVC firm · New York, NY

    Seed, Series A · checks $1.5M–$4.5M (est.)

    AI & ML

  • AH American DynamismVC firm · Menlo Park, CA

    Seed, Series A

    Sector focus not yet verified

  • Audeo VenturesVC firm · Miami, FL

    Seed, Series A · checks $675K–$2.05M (est.)

    FintechB2B Software

  • MBX CapitalVC firm · Tuxedo Park, NY

    Pre-seed to Series A · checks $50K–$200K (est.)

    Biotech & PharmaHealthcare

  • UP VenturesVC firm · Santa Monica, CA

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

    Deep Tech

  • Curve PartnersVC firm · Alpine, UT

    Seed, Series A

    AI & ML

  • Pioneer PrimeVC firm

    Seed, Series A

    Sector focus not yet verified

  • C2V Capital PartnersVC firm · Rye, NY

    Seed, Series A

    Sector focus not yet verified

  • LifeXVC firm · Queens, NY

    Seed, Series A

    Sector focus not yet verified

  • LoLa CapitalVC firm · Prides Crossing, MA

    Seed, Series A

    Sector focus not yet verified