/

Investors / Japan / QB Capital / Co-investors

QB Capital co-investors

Who invests alongside QB Capital · Venture capital · Japan

QB Capital shares at least one checked portfolio company with 148 other investors. It backs companies most often with B Capital (11), F-Prime Capital (2) and Flare Capital Partners (2), and 100% of its 17 checked companies have another investor VCinfo tracks.

148co-investors
17companies backed with another investorof 17 checked
100%of its portfolio is co-backed
B Capitalmost frequent co-investor11 shared companies

Co-investor network

the 14 firms it shares most with, and the companies they back together
12 shared companies9 shared companies8 shared companies8 shared companies7 shared companies7 shared companies7 shared companies6 shared companies6 shared companies6 shared companies5 shared companies5 shared companies5 shared companies4 shared companies4 shared companies4 shared companies4 shared companies4 shared companies3 shared companies3 shared companies3 shared companies3 shared companies2 shared companies2 shared companiesB Capital: 11 shared companiesB Capital11F-Prime Capital: 2 shared companiesF-Prime Capital2Flare Capital Partners: 2 shared companiesFlare Capital Partners2Lightspeed Venture Partners: 2 shared companiesLightspeed Venture Pa…2PROOF: 2 shared companiesPROOF2Thirdbase Capital: 2 shared companiesThirdbase Capital2WNDR: 2 shared companiesWNDR2137 Ventures: 1 shared companies137 Ventures11435 Capital: 1 shared companies1435 Capital115th Rock: 1 shared companies15th Rock1A91 Partners: 1 shared companiesA91 Partners1AIX Ventures: 1 shared companiesAIX Ventures1ARK Venture Fund: 1 shared companiesARK Venture Fund1Abingworth: 1 shared companiesAbingworth1
Shared portfolio companies with QB CapitalFirms that also back companies together

Circle size is the number of companies shared with QB Capital; a line joins two co-investors that back at least two companies together.

All co-investors

top 60 of 148, ranked by shared portfolio companies
#InvestorSharedCompanies both back
1B CapitalVenture capital · United States11Compare · Its co-investors
2F-Prime CapitalVenture capital · United States2Compare · Its co-investors
3Flare Capital PartnersVenture capital · United States2Compare · Its co-investors
4Lightspeed Venture PartnersVenture capital · United States2Compare · Its co-investors
5PROOFVenture capital · United States2Compare · Its co-investors
6Thirdbase CapitalVenture capital · United States2Compare · Its co-investors
7WNDRVenture capital · United States2Compare · Its co-investors
8137 VenturesVenture capital · United States1Compare · Its co-investors
91435 CapitalVenture capital · United States1Compare · Its co-investors
1015th RockVenture capital · Japan1Compare · Its co-investors
11A91 PartnersVenture capital · India1Compare · Its co-investors
12AbingworthVenture capital · United Kingdom1Compare · Its co-investors
13AIX VenturesVenture capital · United States1Compare · Its co-investors
14AlleyCorpVenture capital · United States1Compare · Its co-investors
15Alpha PartnersVenture capital · United States1Compare · Its co-investors
16aMoonVenture capital · Israel1Compare · Its co-investors
17Arali VenturesVenture capital · India1Compare · Its co-investors
18ARK Venture Fundark-funds.com1Compare · Its co-investors
19Assembly VenturesVenture capital · United States1Compare · Its co-investors
20Atinum InvestmentVenture capital · South Korea1Compare · Its co-investors
21Audacious VenturesVenture capital · United States1Compare · Its co-investors
22Aurum Venture PartnersVenture capital · United States1Compare · Its co-investors
23Bain Capital VenturesVenture capital · United States1Compare · Its co-investors
24Battery VenturesVenture capital · United States1Compare · Its co-investors
25Bessemer Venture PartnersVenture capital · United States1Compare · Its co-investors
26Big Brain HoldingsVenture capital · United States1Compare · Its co-investors
27Black Opal VenturesVenture capital · United States1Compare · Its co-investors
28BluelakeVenture capital1Compare · Its co-investors
29Blume EquityVenture capital1Compare · Its co-investors
30British International InvestmentUnited Kingdom1Compare · Its co-investors
31BroadLight CapitalVenture capital1Compare · Its co-investors
32Capital FactoryVenture capital · United States1Compare · Its co-investors
33CapitalTVenture capital · Netherlands1Compare · Its co-investors
34COACT CapitalVenture capital1Compare · Its co-investors
35Congruent VenturesVenture capital · United States1Compare · Its co-investors
36Convective CapitalVenture capital · United States1Compare · Its co-investors
37CRVVenture capital · United States1Compare · Its co-investors
38DataPower VenturesVenture capital1Compare · Its co-investors
39DCMVenture capital · United States1Compare · Its co-investors
40DCVCVenture capital · United States1Compare · Its co-investors
41Decheng CapitalVenture capital · United States1Compare · Its co-investors
42Deep Lake CapitalVenture capital1Compare · Its co-investors
43Difference PartnersVenture capital · United States1Compare · Its co-investors
44Digitalis VenturesVenture capital · United States1Compare · Its co-investors
45DisruptiveVenture capital · United States1Compare · Its co-investors
46DO Venture PartnersVenture capital1Compare · Its co-investors
47Dragon FundsVenture capital · Singapore1Compare · Its co-investors
48DRONE FUNDVenture capital · Japan1Compare · Its co-investors
49DST GlobalVenture capital1Compare · Its co-investors
50E1 VenturesVenture capital · United States1Compare · Its co-investors
51E14 FundVenture capital · United States1Compare · Its co-investors
52Elemental ImpactUnited States1Compare · Its co-investors
53Emerald Development ManagersVenture capital · United States1Compare · Its co-investors
54Emles Venture PartnersVenture capital · United States1Compare · Its co-investors
55Energy Impact PartnersVenture capital · United States1Compare · Its co-investors
56Exfinity VenturesVenture capital · India1Compare · Its co-investors
57FreestyleVenture capital · United States1Compare · Its co-investors
58FrontlineVenture capital · United Kingdom1Compare · Its co-investors
59General AtlanticVenture capital · United States1Compare · Its co-investors
60General CatalystVenture capital · United States1Compare · Its co-investors
Showing the top 60 of 148. GET /v1/firms/qbc.co.jp/coinvestors returns the ranked list as JSON for a CRM, a sheet or an AI agent: 25 firms a call on the free plan, 100 on Pro.
Get free API keyAPI docs

A co-investor is a firm whose own portfolio page lists a company that QB Capital's page lists too, both checked against the company's site. It shows who backs the same companies, not who joined the same round. How the data is graded

Free account · no card

Get QB Capital's co-investors as data

Pull this ranked list, QB Capital's portfolio and any firm's profile through one API key or MCP, compare portfolios side by side, and get an email when QB Capital adds a company.

Work email, sign-in link by email. Already have an account? Log in
  • Ask AI5 plain-English investor searches a day
  • Full listsEvery portfolio row and two-firm overlap
  • API and MCP100 REST or MCP calls a month, one key
  • AlertsFollow 5 investors for portfolio and fund changes
VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/firms/qbc.co.jp/coinvestors

# also
GET /v1/firms/qbc.co.jp
GET /v1/firms/qbc.co.jp/portfolio
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing