iDtheinvestordatabase
Home / Lists / By sector / Series B AI investors
Updated November 2026

204 Series B AI investors

We list 204 Series B AI investors as of November 2026: 125 have an SEC filing on file and 79 were checked on the firm's own website or an official register, and the list was last checked on 9 Nov 2026. The states with the most are California (49), New York (25) and Florida (7).

204investors
116with a fund filing or dated deal in the last 12 months
$101Mmedian fund size on file (SEC Form D, 92 firms)
1,108named decision-makers on file

Top 5 Series B AI investors, ranked by recent fund activity

Among firms with a published profile and a dated fund or deal in the last 24 months. The rule: Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stage focus (15: all of it when Series B is the only stage the firm states, split evenly when it states more), size of the fund on file on a log scale (15) and completeness of the public record (10). Stage focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns. The same rule orders the whole list; it is repeated in the method box.

  1. Innovation Industries

    Type: VC firm · HQ: Amsterdam, Netherlands · Stages: Series A, Series B, Growth · Focus: AI, Deep Tech, Healthtech, Food and Beverage · Latest activity: New fund, Oct 2026 · Fund size or assets: €1.0B (own site)

    Latest fund filing dated Oct 2026; €1.0B on file (own site); states AI as a focus; backs Series A, Series B, growth-stage; 4 named decision-makers on file.

  2. Alpha Partners

    Type: VC firm · HQ: New York, NY · Stages: Series B, Growth · Focus: AI, Developer Tools, Healthtech, Cybersecurity · Latest activity: New fund, Oct 2026 · Fund size on file: $200M (SEC Form D, 2024)

    Latest fund filing dated Oct 2026; $200M fund on file (SEC Form D, 2024); states AI as a focus; backs Series B, growth-stage; 8 named decision-makers on file.

  3. DTCP

    Type: VC firm · HQ: Hamburg, Germany · Stages: Series A, Series B, Growth · Focus: AI, SaaS, Cybersecurity, Defense Tech · Latest activity: New fund, Sep 2026 · Fund size or assets: €3.5B (own site)

    Latest fund filing dated Sep 2026; €3.5B on file (own site); states AI as a focus; backs Series A, Series B, growth-stage; 5 named decision-makers on file.

  4. eCAPITAL

    Type: VC firm · HQ: Münster, Germany · Stages: Seed, Series A, Series B · Focus: AI, Deep Tech, Climate Tech, Cybersecurity · Latest activity: Portfolio news, Sep 2026 · Fund size or assets: €400M (own site)

    Portfolio news dated Sep 2026; €400M on file (own site); states AI as a focus; backs seed, Series A, Series B; 5 named decision-makers on file.

  5. Endeit Capital

    Type: VC firm · HQ: Amsterdam, Netherlands · Stages: Series A, Series B, Growth · Focus: AI, Fintech, Climate Tech, Cybersecurity · Latest activity: New deal, Oct 2026 · Fund size or assets: €430M (own site)

    Dated new deal in Oct 2026; €430M on file (own site); states AI as a focus; backs Series A, Series B, growth-stage; 3 named decision-makers on file.

First 25 of 204 Series B AI investors

InvestorTypeHQStagesour researchFocusour researchLatest fund or dealFund sizeas filed or statedCheckedContacts
Innovation IndustriesVC firmAmsterdam, NetherlandsSeries A, Series B, GrowthAI, Deep Tech, Healthtech, Food and BeverageNew fund, Oct 2026€1.0B (own site)7 Nov 20264 names, firm email · Unlock
Alpha PartnersVC firmNew York, NYSeries B, GrowthAI, Developer Tools, Healthtech, CybersecurityNew fund, Oct 2026$200M (SEC Form D, 2024)4 Nov 20268 names, firm email · Unlock
DTCPVC firmHamburg, GermanySeries A, Series B, GrowthAI, SaaS, Cybersecurity, Defense TechNew fund, Sep 2026€3.5B (own site)7 Nov 20265 names · Unlock
eCAPITALVC firmMünster, GermanySeed, Series A, Series BAI, Deep Tech, Climate Tech, CybersecurityPortfolio news, Sep 2026€400M (own site)7 Nov 20265 names · Unlock
Endeit CapitalVC firmAmsterdam, NetherlandsSeries A, Series B, GrowthAI, Fintech, Climate Tech, CybersecurityNew deal, Oct 2026€430M (own site)7 Nov 20263 names, firm email · Unlock
Cathay InnovationVC firmParis, FranceSeed, Series A, Series B, Growth, Late stageAI, Robotics, Fintech, HealthtechPortfolio news, Aug 2026€2.5B (own site)7 Nov 20265 names, firm email · Unlock
GreycroftVC firmNew York, NYSeries A, Series B, GrowthAI, Industrial Tech, Defense Tech, HealthtechNew deal, Oct 2026$600M (SEC Form D, 2022)4 Nov 20265 names · Unlock
Balderton CapitalVC firmLondon, United KingdomSeed, Series A, Series B, GrowthAI, Healthtech, Fintech, Developer ToolsPortfolio news, Oct 2026$5.7B (own site)4 Nov 20268 names · Unlock
Energy Impact PartnersVC firmUnited States (London office)Seed, Series A, Series B, GrowthAI, Energy, Climate Tech, CybersecurityPortfolio news, Nov 2026$4.5B (own site)5 Nov 20268 names · Unlock
EvolutionVC firmNew York, NYSeed, Series A, Series B, GrowthAI, Cybersecurity, Developer Tools, SaaSNew fund, Sep 2026$1.2B (SEC Form D, 2026)4 Nov 20268 names · Unlock
Prudence.VC firmNew York, NYSeries A, Series BAI, Proptech, Robotics, Developer ToolsNew fund, Aug 2026$150M (SEC Form D, 2022)4 Nov 20263 names · Unlock
Parkwalk AdvisorsSEIS/EIS fundLondon, United KingdomSeed, Series A, Series B, GrowthAI, Healthtech, Industrial Tech, EnergyNew fund, Sep 2026£500M (own site)4 Nov 20268 names, firm email · Unlock
Tribe CapitalVC firmSan Mateo, CASeed, Series A, Series B, GrowthAI, Cybersecurity, Crypto and Web3, GeneralistNew fund, Oct 2026$500M (SEC Form D, 2021)4 Nov 20268 names, firm email · Unlock
Kleiner PerkinsVC firmMenlo Park, CAPre-seed, Seed, Series A, Series B, GrowthAI, Fintech, Proptech, MobilityNew fund, Aug 2026$995M (SEC Form D, 2026)4 Nov 20262 names · Unlock
OneTargetVC firmBerlin, GermanySeed, Series A, Series B, GrowthAI, Fintech, Healthtech, ConsumerPortfolio news, Sep 2026$3.0B (own site)4 Nov 2026firm email · Unlock
GeodesicVC firmFoster City, CASeries B, Any stageAI, Developer Tools, Fintech, B2BNew deal, Oct 2026$500M (SEC Form D, 2021)5 Nov 20268 names, firm email · Unlock
Menlo VenturesVC firmMenlo Park, CAPre-seed, Seed, Series A, Series B, GrowthAI, Media, Robotics, ConsumerNew fund, Sep 2026$800M (SEC Form D, 2025)4 Nov 20268 names · Unlock
SYN VenturesVC firmWest Palm Beach, FLSeed, Series A, Series BAI, Cybersecurity, Defense Tech, Industrial TechNew fund, Oct 2026$300M (SEC Form D, 2022)4 Nov 20268 names · Unlock
Translink CapitalVC firmPalo Alto, CASeed, Series A, Series BAI, Developer Tools, Mobility, B2BNew fund, Sep 2026$174M (SEC Form D, 2021)5 Nov 20268 names, firm email · Unlock
Axeleo CapitalVC firmParis, FrancePre-seed, Seed, Series A, Series BAI, SaaS, B2B, CybersecurityPortfolio news, Oct 2026€300M (own site)7 Nov 20265 names, firm email · Unlock
MiddleGame VenturesVC firmLuxembourg, LuxembourgPre-seed, Seed, Series A, Series BAI, Fintech, Cybersecurity, Deep TechNew deal, Sep 2026€300M (own site)7 Nov 20265 names, firm email · Unlock
Bison VenturesVC firmSan Francisco, CAPre-seed, Seed, Series A, Series BAI, Healthtech, Energy, BiotechNew fund, Oct 2026$160M (SEC Form D, 2025)4 Nov 20262 names, firm email · Unlock
IVP: Venture capital for the ExceptionalVC firmMenlo Park, CASeries B, GrowthAI, Healthtech, Developer Tools, SaaSNew fund, Oct 2026$60M (SEC Form D, 2026)4 Nov 20268 names · Unlock
MadronaVC firmSeattle, WAPre-seed, Seed, Series A, Series B, GrowthAI, Biotech, Consumer, Deep TechNew deal, Oct 2026$490M (SEC Form D, 2025)5 Nov 20268 names · Unlock
Liquid 2 VenturesVC firmSan Francisco, CAPre-seed, Seed, Series B, GrowthAI, Mobility, SaaS, HardwareNew fund, Aug 2026$200M (SEC Form D, 2026)4 Nov 20268 names, firm email · Unlock

You are seeing 25 of 204. The full list adds 179 more investors and 1,108 named decision-makers.

Get all 204 investors and 1,108 named contacts, $49

One-time payment. No subscription. No account.

Or get the free sample.

How these 204 break down

By region

RegionOn this listShare
United States12662%
United Kingdom3015%
Europe4723%

By US state

US stateOn this listShare
California4924%
New York2512%
Florida73%
Illinois63%
Massachusetts63%
Colorado42%
Washington31%
Maryland31%
Texas21%
Tennessee21%

By European country

European countryOn this listShare
France2110%
Germany63%
Netherlands52%
Luxembourg31%
Portugal31%
Austria31%
Switzerland21%
Italy21%

By type

TypeOn this listShare
VC firm17988%
Corporate VC136%
SEIS/EIS fund31%
Accelerator21%
Venture debt21%
Fund manager21%

Method and limits

Source
125 of the 204 rows carry an SEC filing (Form D or Form ADV). All 204 have a website we checked. Filing date and fund size are SEC data where a filing exists. Stage, sector and check size are our research.
Inclusion rule
Organizations that back startups. Individuals, buyout funds and firms we found to be inactive are left out. Sector: the firm states AI as a focus on its own site, or we observed it in the firm's portfolio. Stage: the firm states that it invests at Series B.
Order
Firms with a published profile come first. Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stage focus (15: all of it when Series B is the only stage the firm states, split evenly when it states more), size of the fund on file on a log scale (15) and completeness of the public record (10). Stage focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
Last refreshed
November 2026. Rows on this list were checked between 4 Nov 2026 and 9 Nov 2026.
Fill rates
Of 204 rows: stage 204, sector 204, fund size 143, website 204. In the paid file: named decision-makers on 189 rows, firm email on 79, LinkedIn page on 143, check size on 44.
Corrections
Email [email protected] or use the update form. We act within 5 working days.

How we verify

Questions

How many Series B AI investors are there?

We list 204 as of November 2026. 116 of the 204 have a fund filing or a dated deal in the last 12 months.

Which Series B AI investors raised a new fund in the last 12 months?

64 of the 204 have a fund filing dated in the last 12 months. The most recent on this list are IVP: Venture capital for the Exceptional (Oct 2026), Bison Ventures (Oct 2026) and Overlap Holdings (Oct 2026).

What is the typical fund size of Series B AI investors?

The median fund size on file for this list is $101M, across the 92 firms with a size on an SEC Form D. The fund on file is each firm's main fund, which is not always its newest. The other 112 do not disclose a size there.

How do I contact Series B AI investors?

The paid file holds 1,108 named decision-makers across 189 of these 204 and a firm email for 79. We publish the address a firm lists itself, never a personal email. Each free row links to a profile with the firm's website.

Where does the data on Series B AI investors come from?

125 of the 204 rows have an SEC filing on file (Form D or Form ADV) and 79 were checked on the firm's own website or an official register. Filing date and fund size come from the filing. Stage, sector and check size are our research. Rows on this list were last checked on 9 Nov 2026 at the latest. The whole file is re-verified twice a year.

Not sure this is the right list? Describe your raise in the investor matching tool and get a shortlist. The link opens it set to AI and Series B. Guide: how to find investors for an AI startup. Markdown version of this page.

Check the quality first

A free sample of 100 investors, every column, with sources and dates.

Instant download. We keep your email as a record of the request. Privacy notice.