ZInvestorHunting
Sign inStart 3-day trial

Series B investors active this year

224 US Series B investors filed a new fund, deal vehicle or board seat with the SEC in the last 12 months, 86 (38%) of them in the last 90 days. The top home states are California (98), New York (40) and Massachusetts (22); the most common sectors are AI & ML (88), Healthcare (48) and B2B Software (48). For the 194 with a stated or estimated check size, the median range is $2.5M–$7.6M. 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 B investors are investing right now?

224 filed a new fund, deal vehicle or board seat with the SEC in the last 12 months, 86 of them in the last 90 days.

How much do Series B investors typically invest?

The median estimated check is $2.5M–$7.6M, across 194 investors with a plausible estimate. Actual checks vary by round and lead role.

Where are Series B investors based?

Most are in California (98), New York (40) and Massachusetts (22).

What sectors do Series B investors back most?

AI & ML (88), Healthcare (48) and B2B Software (48) lead, by investors with recent activity in each.

Start a 3-day trial to rank these 224 investors by fit with your startup and see contacts and warm paths.

Rank them for me

  • UP VenturesVC firm · Santa Monica, CA

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

    Deep Tech

  • Chemistry VenturesVC firm · San Francisco, CA

    Seed, Series B · checks $100K–$300K (est.)

    AI & MLCybersecurityBiotech & Pharma

  • Foundation CapitalVC firm · Palo Alto, CA

    Seed to Growth · checks $2.25M–$53.7M (est.)

    AI & MLB2B Software

  • FikaVC firm · Culver City, CA

    Pre-seed to Series B · checks $2.35M–$7.05M (est.)

    Real Estate & PropTechB2B SoftwareAI & MLFintech+1

  • Altimeter Premier GrowthVC firm · Boston, MA

    Series B, Growth · checks $15.6M–$46.6M (est.)

    Sector focus not yet verified

  • AdditionVC firm · New York, NY

    Seed to Growth · checks $12.8M–$47.1M (est.)

    E-commerce & RetailConsumerReal Estate & PropTechHealthcare

  • GreylockVC firm · San Francisco, CA

    Seed to Growth

    Sector focus not yet verified

  • LongitudeVC firm · Menlo Park, CA

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

    Biotech & PharmaHealthcare

  • Inspired CapitalVC firm · New York, NY

    Pre-seed to Growth

    E-commerce & RetailConsumerFintechAI & ML+1

  • Gore Range CapitalVC firm · Southlake, TX

    Seed to Series B · checks $2.5M–$7.5M (est.)

    HealthcareB2B Software

  • Niya PartnersVC firm · Middletown, DE

    Seed to Growth · checks $75K–$250K (est.)

    B2B SoftwareAI & MLHealthcare

  • March Capital PartnersVC firm · Santa Monica, CA

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

    AI & MLDeep TechCybersecurity

  • At One VenturesVC firm · Menlo Park, CA

    Seed to Series B · checks $3.75M–$11.3M (est.)

    Climate & EnergyB2B Software

  • Eden RoadVC firm · Niwot, CO

    Seed, Series B · checks $525K–$1.6M (est.)

    Sector focus not yet verified

  • Evolution TechnologyVC firm · New York, NY

    Seed to Growth · checks $12M–$36M (est.)

    CybersecurityAI & ML

  • MaC Venture CapitalVC firm · Los Angeles, CA

    Seed to Series B · checks $2.02M–$6.05M (est.)

    HealthcareSpaceHardware & RoboticsFood & Agriculture+1

  • Tiger Global Private Investment PartnersVC firm · New York, NY

    Series B, Growth · checks $20.6M–$61.9M (est.)

    Media, Gaming & Creator

  • FPVVC firm · Jackson, WY

    Series A, Series B · checks $4.42M–$13.3M (est.)

    B2B SoftwareBiotech & Pharma

  • NFX CapitalVC firm · San Francisco, CA

    Pre-seed to Series B · checks $150K–$450K (est.)

    Biotech & Pharma

  • LCVVC firm · New York, NY

    Seed to Series B · checks $4.17M–$12.5M (est.)

    Crypto & Web3

  • Fin CapitalVC firm · San Francisco, CA

    Seed to Series B · checks $1.5M–$4.5M (est.)

    FintechB2B Software

  • LRVHealthVC firm · Boston, MA

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

    Healthcare

  • SandboxVC firm · Chicago, IL

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

    HealthcareInsurtech

  • Scout VenturesVC firm · Austin, TX

    Seed to Series B · checks $1.25M–$3.75M (est.)

    AI & MLDefense & AerospaceDeep TechSpace

  • ColumnVC firm · San Francisco, CA

    Seed to Growth · checks $3.77M–$31.8M (est.)

    Biotech & Pharma

  • Nexus VenturesVC firm · Menlo Park, CA

    Pre-seed to Growth · checks $1M–$25M (est.)

    AI & MLB2B SoftwareBiotech & Pharma

  • Redpoint VenturesVC firm · Woodside, CA

    Seed to Growth

    B2B SoftwareAI & MLMedia, Gaming & CreatorConsumer+1

  • Viola VenturesVC firm

    Pre-seed to Growth · checks $3.48M–$10.4M (est.)

    FintechAI & MLB2B Software

  • Aditum BioVC firm · Oakland, CA

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

    Biotech & Pharma

  • 7wire VenturesVC firm · Chicago, IL

    Seed to Series B · checks $1.5M–$4.5M (est.)

    HealthcareMedia, Gaming & CreatorSpace

  • Institutional Venture PartnersVC firm · Menlo Park, CA

    Series B, Growth · checks $16M–$48M (est.)

    HealthcareB2B SoftwareFintech

  • Oceanus Growth PartnersVC firm · San Francisco, CA

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

    Sector focus not yet verified

  • Cultivation CapitalVC firm · St. Louis, MO

    Pre-seed to Series B · checks $250K–$3.5M (est.)

    Food & AgricultureBiotech & PharmaHealthcare

  • InterlagosVC firm · El Segundo, CA

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

    Sector focus not yet verified

  • AtomusVC firm · Palo Alto, CA

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

    Sector focus not yet verified

  • Align VenturesVC firm · Miami, FL

    Seed to Growth · checks $850K–$2.55M (est.)

    ConsumerFintechAI & MLClimate & Energy

  • FLF AccelerateAccelerator · Tampa, FL

    Pre-seed to Series B · checks $50K–$150K (est.)

    B2B SoftwareAI & ML

  • Y CombinatorAccelerator · Mountain View, CA

    Pre-seed to Series B · checks $250K–$500K (est.)

    AI & MLB2B SoftwareDeveloper ToolsHardware & Robotics+1

  • 922 CapitalVC firm · Houston, TX

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

    Sector focus not yet verified

  • Radical VenturesVC firm

    Seed to Growth

    AI & ML