MainFunc in a few pages, for writers, partners and anyone curious: the facts, the people, the money, the products and the news. Put together by ToolGPA, not by MainFunc.
Genspark is an AI agent workspace built by MainFunc, formally Mainfunc Inc., a venture-backed company in Palo Alto. It sells paid Plus, Pro and team plans that run on a credit allowance, and started as an AI search engine before shifting to the workspace in 2025.
Founded
2023
Based in
Palo Alto
Chief executive
Eric Jing
Raised
$645 million
Valuation
$2.6 billion
Latest round
Series B, $275 million
Unofficial. Put together by ToolGPA from MainFunc’s own pages, news reports and our own grades, read Oct 18, 2026. Not made, paid for or approved by MainFunc. toolgpa.com
Part 01 · Company
The company
Who they are, the facts in one place, and the people who run it
2023
The year MainFunc was founded, in Palo Alto
In a sentence
Genspark is an AI agent workspace built by MainFunc, formally Mainfunc Inc., a venture-backed company in Palo Alto. It sells paid Plus, Pro and team plans that run on a credit allowance, and started as an AI search engine before shifting to the workspace in 2025.
In a paragraph
MainFunc was founded in 2023 and is based in Palo Alto, United States, with offices in Singapore and Tokyo. Eric Jing is its co-founder and CEO; Kay is a co-founder. It has raised $645 million, most recently a Series B in November 2025. Its last reported valuation was $2.6 billion, in June 2026.
Free to quote. Please link to toolgpa.com so readers can check the facts.
Fact sheet
Company
MainFunc
Founded
2023
Based in
Palo Alto, United States, with offices in Singapore and Tokyo
Raised
$645 million
Last valuation
$2.6 billion (June 2026)
Website
genspark.ai
Products we list
Genspark
Ownership: Privately held
Privately held. MainFunc's own site names Emergence Capital, SBI Investment, LG Technology Ventures, Pavilion Capital and UpHonest Capital among its backers, and its lead investor's portfolio page lists the company as private.
Leadership
EJ
Eric Jing
Co-founder and CEO
K
Kay
Co-founder and CTO
Part 02 · Funding
The money
Every announced round, who put money in, and what it was last valued at
$645M
Raised in total, over 3 announced rounds
MainFunc says it raised a $275 million Series B led by Emergence Capital. Earlier it announced a $100 million Series A in March 2025, and SiliconANGLE reported a $60 million seed led by Lanchi Ventures in June 2024. TechCrunch put the Series B at $485 million and total funding at $645 million in July 2026.
Announced rounds, oldest first. Bar heights are to scale.
Every announced round
Nov 20, 2025Series B$275 millionLed by Emergence Capital. With SBI Investment, LG Technology Ventures, Pavilion Capital, UpHonest Capital. mainfunc.ai
Mar 3, 2025Series A$100 milliongenspark.ai
Jun 18, 2024Seed$60 millionLed by Lanchi Ventures. siliconangle.com
Investors named
Emergence Capital
Lanchi Ventures
LG Technology Ventures
Pavilion Capital
SBI Investment
UpHonest Capital
Filled: led at least one round. As each announcement names them.
Last valuation
$2.6 billion
June 2026
TechCrunch reported the figure in July 2026 when it listed Genspark among the year's new unicorns; MainFunc's own site still gives the earlier $1.25 billion valuation from the November 2025 round.
What they make
Genspark, as ToolGPA grades it: five subjects, a letter for each, and a GPA.
Genspark
AI workspace with an agent for research, slides, sheets and docs
AI AgentsFrom $19.99 per month, billed annually at $239.99Free plan4.7 on the App Store
3.2GPA
Best for one agent for research, slides, sheets and docs. Genspark is a whole AI workspace with one agent in the middle of it.
CValue
CFree
AFeatures
AEase
APlatforms
Genspark’s grade as a badge for its own site, free: it updates itself and links to the review. Code at toolgpa.com/badges.
Part 04 · News
News and contacts
What they have announced lately, and every official channel
This media kit is ToolGPA’s own summary of what MainFunc’s pages, news reports, investors’ announcements and public filings said on the dates shown, with our own grades. It is not made, paid for or approved by MainFunc, and MainFunc’s names and logos are trademarks of their owner. Grades are our judgement under the rules at toolgpa.com/grades. ToolGPA uses affiliate links and may earn a commission from them, and it works with sponsors; no one can pay for a grade. Product pictures are MainFunc’s own, from its website and app-store listings.