Actively Writing Checks

Active Series B Investors Writing Checks Now

100 venture capital funds actively deploying at the Series B stage in 2026. Verified check sizes and recent SEC filings.

100
Active Funds
$272.9M
Avg Check Size
16
Filed Last 90 Days
$27.3B
Combined AUM
All deployment data sourced from SEC EDGAR Form D filings as of June 2026.

Why Now Is a Good Time to Pitch These Funds

Market timing context for Series B investors

Fresh Dry Powder

Funds that have filed with the SEC in the last 12 months are still in active deployment mode. The earlier in a fund's cycle you pitch, the more receptive GPs tend to be — they have capital to put to work and portfolio construction is not yet locked in.

Verified Activity Signals

Every fund listed here has a recent SEC Form D filing, confirming they have raised capital and are authorized to invest. This eliminates zombie funds that are listed on directories but are no longer writing checks.

Deployment Urgency

Most VC funds have a 3–5 year deployment window. Funds with recent filings face internal pressure to invest their committed capital within that window, making them more likely to move quickly when they find a strong fit.

Series B Investors100 Actively Deploying Funds

Sorted by deployment recency and quality score. Click a fund name for its full profile.

Active 12d ago
growth$30.0MPooled Investment Fund
Active 20d ago
growth$60.0MPooled Investment Fund
Active 23d ago
growth$200.0MPooled Investment Fund
Active 26d ago
growth$20.0MPooled Investment Fund
Active 26d ago
growth$25.0MPooled Investment Fund
Active 1mo ago
growth$250.0MPooled Investment Fund
VerifiedActive 1mo ago
growth$175.0MPooled Investment Fund
VerifiedActive 1mo ago
growth$175.0MPooled Investment Fund
Active 2mo ago
growth$200.0MPooled Investment Fund
A-Star Fund III, LP

SAN FRANCISCO, CA

Active 2mo ago
growth$451.0MPooled Investment Fund
Active 2mo ago
growth$591.0MPooled Investment Fund
Active 2mo ago
growth$250.0MPooled Investment Fund
VerifiedActive 2mo ago
growth$175.0MPooled Investment Fund
growth$75.0MPooled Investment Fund
Active 2mo ago
growth$100.0MPooled Investment Fund
Active 2mo ago
growth$10.5MPooled Investment Fund
growth$150.0MPooled Investment FundFiled 3mo ago
growth$6.0BPooled Investment FundFiled 3mo ago
growthPooled Investment FundFiled 3mo ago
growthPooled Investment FundFiled 4mo ago
growth$179.1MPooled Investment FundFiled 4mo ago
Verified
growth$275.0MPooled Investment FundFiled 4mo ago
growth$35.0MPooled Investment FundFiled 4mo ago
growth$150.0MPooled Investment FundFiled 4mo ago
Verified
growth$225.0MPooled Investment FundFiled 5mo ago
growthPooled Investment FundFiled 5mo ago
growth$200.0MFiled 6mo ago
growth$200.0MFiled 6mo ago
growthFiled 6mo ago
growth$30.0MFiled 6mo ago
growth$110.0MFiled 6mo ago
March EXP I LP

George Town, Grand Cayman, E9

growth$200.0MPooled Investment FundFiled 7mo ago
Banner VC I, LP

AUSTIN, TX

growth$220.0MPooled Investment FundFiled 7mo ago
Verified
growth$15.0MPooled Investment FundFiled 7mo ago
growthFiled 8mo ago
growth$350.0MFiled 8mo ago
Verified
growth$250.0MFiled 8mo ago
Verified
growth$150.0MFiled 8mo ago
SYN Ventures Fund III LP

WEST PALM BEACH, FL

Verified
growth$300.0MFiled 8mo ago
growth$150.0MFiled 8mo ago
growth$150.0MFiled 8mo ago
growth$275.0MFiled 8mo ago
BoxGroup Seven, LP

NEW YORK, NY

growth$275.0MFiled 8mo ago
growthFiled 8mo ago
growth$10.0MFiled 8mo ago
SC Growth LLC

NEW YORK, NY

growth$15.3MPooled Investment FundFiled 9mo ago
Cosmic - Aleph 4, L.P.

WEST HOLLYWOOD, CA

growth$400.0MFiled 9mo ago
growth$379.0MFiled 9mo ago
Verified
growth$165.0MFiled 9mo ago
Alt Capital II, L.P.

SAN FRANCISCO, CA

growth$275.0MFiled 9mo ago
growth$150.0MFiled 9mo ago
Athena Growth Fund 2025, LP

EAST GREENWICH, RI

growthPooled Investment FundFiled 10mo ago
growth$150.0MPooled Investment FundFiled 10mo ago
K5 HS HoldCo, LLC

MIAMI BEACH, FL

growth$365.9MFiled 10mo ago
growth$300.8MPooled Investment FundFiled 11mo ago
growth$250.0MFiled 11mo ago
growth$400.0MFiled 11mo ago
growth$331.5MFiled 11mo ago
growth$350.0MFiled 11mo ago
growthFiled 11mo ago
growthFiled 11mo ago
SVA AI Growth, L.P.

SAN FRANCISCO, CA

growth$215.3MFiled 12mo ago
MW LSV Aman, LLC

LOS ANGELES, CA

growth$200.0MFiled 1y ago
Verified
growth$250.0MPooled Investment FundFiled 1y ago
growth$45.7MFiled 1y ago
growth$250.0MPooled Investment FundFiled 1y ago
growth$33.3MPooled Investment FundFiled 1y ago
growth$26.8MPooled Investment FundFiled 1y ago
Verified
growth$200.0MTechnology, healthcare, consumerFiled 1y ago
growthPooled Investment FundFiled 1y ago
M31 Ventures, LP

Scottsdale, AZ

Verified
growth$250.0MFiled 1y ago
growth$400.0MPooled Investment FundFiled 1y ago
growth$400.0MPooled Investment FundFiled 1y ago
Infinite Capital RadicalAI

WEST PALM BEACH, FL

growth$12.0MTechnology, healthcare, fintechFiled 1y ago
growth$315.0MPooled Investment FundFiled 1y ago
growth$250.0MPooled Investment FundFiled 1y ago
K2 Bio Partners III L.P.

Grand Cayman, E9

growth$150.0MPooled Investment FundFiled 1y ago
Verified
growth$400.0MPooled Investment FundFiled 1y ago
growth$400.0MFiled 1y ago
Uncork VIII, L.P.

SAN FRANCISCO, CA

growth$225.0MPooled Investment FundFiled 1y ago
growthPooled Investment FundFiled 1y ago
growth$1M-$5MPooled Investment FundFiled 1y ago
growthPooled Investment FundFiled 1y ago
growth$150.0MPooled Investment FundFiled 1y ago
growth$250.0MTechnologyFiled 1y ago
growthPooled Investment FundFiled 1y ago
growth$94.6MPooled Investment FundFiled 1y ago
Arthur Ventures VI, LP

MINNEAPOLIS, MN

Verified
growth$395.0MTechnology, healthcare, consumerFiled 1y ago
Verified
growth$205.0MPooled Investment FundFiled 1y ago
BCAP GROWTH II FEEDER, LP

SAN FRANCISCO, CA

growthPooled Investment FundFiled 1y ago
BCAP GROWTH II, LP

SAN FRANCISCO, CA

growthPooled Investment FundFiled 1y ago
growth$75.0MTechnologyFiled 1y ago
growth$4.6BPooled Investment FundFiled 1y ago
growth$1M-$5MPooled Investment FundFiled 1y ago
growth$150.0MPooled Investment FundFiled 1y ago
growthFiled 1y ago
Footwork Fund II, L.P.

SAN FRANCISCO, CA

growth$225.0MPooled Investment FundFiled 1y ago
growth$317.4MPooled Investment FundFiled 1y ago

Frequently Asked Questions

What is a Series B investment and how large are the checks?

A Series B investment is a growth round for companies that have achieved product-market fit at scale and are ready to expand into new markets, geographies, or verticals.. Check sizes at this stage typically range from $15M – $50M. The exact amount depends on valuation, how competitive the deal is, and whether co-investors are participating in the round.

How many Series B investors are actively writing checks in 2026?

Our database shows 100 Series B investors with SEC Form D filings from the last 12 months, indicating active capital deployment. This number fluctuates as new funds close and established funds fully deploy their capital.

What metrics do Series B investors expect to see?

Series B investors look for $5M–$15M+ ARR, consistent 60–100% YoY growth, strong net revenue retention (>110%), and a clear competitive moat. Investors at this stage also weigh team composition heavily — relevant domain expertise and a track record of execution matter as much as the numbers.

How do I find the right Series B investor for my startup?

Filter by industry above to see Series B investors in your specific sector. Then review each fund's portfolio on their website to confirm they invest in similar companies. Prioritize funds where you can get a warm introduction through shared investors, advisors, or portfolio founders.

How long does a Series B fundraise typically take?

Most founders spend 2–4 months on a Series B round, from first outreach to signed term sheet. Allow another 4–8 weeks for legal documentation and closing. Starting the process 3–6 months before you run out of runway is strongly recommended to avoid negotiating from a position of weakness.