Companies / Mainframe Industries

Mainframe Industries

Reykjavík, Iceland

Mainframe is an independent, venture-backed game developer creating a social sandbox MMO

Mainframe Industries, based in Reykjavík, Iceland, has 3 investors on file, among them Andreessen Horowitz, Play Ventures and Sisu Game Ventures. Its latest round on record is Series B, 1 Jun 2021. Its site turns away automated reads, so VCinfo could not check it; it is listed because an investor's own portfolio page links to it.

themainframe.com

Funding

1 round on record

Latest roundSeries B1 Jun 2021

Since that round5 years 5 monthsno later round on record

Investors in its rounds51 with a VCinfo profile

Jun 2021Series BLed by Andreessen Horowitz, with 4 others

Round sizes and total raised are on Fundup AI, our sister product for funding data.

Investors

3 investors on file

Investor	Evidence	Type
Andreessen Horowitz	Page + round	Venture capital
Play Ventures	Portfolio page	Venture capital
Sisu Game Ventures	Portfolio page	Venture capital

A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data

At a glance

Latest round: Series B, 1 Jun 2021
Investors on file: 3
Founded: 2019
Employees: 51-200
Headquarters: Reykjavík, Iceland
Open roles: 1
Site: Could not be checked
Last checked: 13 Nov 2026

Company data by Fundup AI.

Backed by the same investors

Companies sharing two or more investors with Mainframe Industries.

Azra Games2 shared

Original Games2 shared

Theorycraft Games2 shared

Get this company as JSON

GET /v1/companies/themainframe.com
GET /v1/companies/themainframe.com/investors
GET /v1/companies/themainframe.com/news

API docs · Get a free key · Your API key

Raising a round?

See which investors fit your startup, ranked by what they actually back.

Check investor fit

Free account · no card

Get Mainframe Industries and its investors as data

Look up any company's investors, or any investor's full portfolio, through one API key or MCP. A free account also opens Ask AI searches and alerts when Andreessen Horowitz adds a company.

Work email, sign-in link by email. Already have an account? Log in

Your API key Read the docs

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/companies/themainframe.com/investors

# also
GET /v1/companies/themainframe.com
GET /v1/companies/themainframe.com/news

The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing