# CNEX LABS funding: rounds and investors > CNEX LABS has raised $78M across 5 rounds since 2013. Investors include Sierra Ventures, Alumni Ventures and Walden International. Every round with its source. Source: https://millionrounds.com/company/cnex-labs (Millionrounds; every figure on the page links to its filing or article) United States · [Growth startup](https://millionrounds.com/companies) # Who invested in *CNEX LABS* 5 rounds we have observed, with the 8 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Manufacturing Semiconductors Funding summary Updated 26 Oct 2026 **$78M** raised across 5 rounds since 2013, from 5 sources **$2.5M** Seed **$17M** Venture **$21M** Series A **$23M** Series D **$15M** Growth - **Latest round:** Growth, $15M May 2022 - **Biggest round:** $23M Series D · Oct 2018 - **Investors:** 8 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2015 2017 2019 2021 **$2.5M** Seed **$17M** Venture **$21M** Series A **$23M** Series D **$15M** Growth - **First round:** Seed, $2.5M - **Biggest round:** $23M - **Usual gap between rounds:** 3.6 years ## The rounds - **May 2022** Growth **$15M** *3 new* *1 returning* [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) [Walden International](https://millionrounds.com/fund/walden-international) [Cisco Investments](https://millionrounds.com/fund/cisco-investments) Source recorded - **Oct 2018** Series D **$23M** *4 new* [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) [Walden Venture Capital](https://millionrounds.com/fund/walden-venture-capital) [Brightstone Venture Capital](https://millionrounds.com/fund/brightstone-venture-capital) Dell Technologies Capital/ M12 Reported by FinSMEs - **Jun 2014** Series A **$21M** No investor was named in the report. From a historical funding record SEC filing: $17M sold, first sale May 2014 - **Jun 2014** Venture **$17M** No investor was named in the report. From a historical funding record SEC filing: $17M sold, first sale May 2014 - **Aug 2013** Seed **$2.5M** *1 new* [Ben Yu](https://millionrounds.com/fund/ben-yu) From a historical funding record ## Founders and team From the SEC filings it signed: 2 on the team. - **Alan Armstrong** Executive Officer, Director, Promoter i - **Mike Seifert** Executive Officer i On the board, as filed i *Ben Yu* *Bill Moore* *Gregg Adkin* *Lip-Bu Tan* *Michael Raam* ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Seed** 2013 **Venture** 2014 **Series A** 2014 **Series D** 2018 **Growth** 2022 [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Walden International](https://millionrounds.com/fund/walden-international) [Cisco Investments](https://millionrounds.com/fund/cisco-investments) [Walden Venture Capital](https://millionrounds.com/fund/walden-venture-capital) [Brightstone Venture Capital](https://millionrounds.com/fund/brightstone-venture-capital) [Ben Yu](https://millionrounds.com/fund/ben-yu) Dell Technologies Capital/ M12 ## Everyone who backed them [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) VC firm **2** rounds [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **1** round [Walden International](https://millionrounds.com/fund/walden-international) VC firm **1** round [Cisco Investments](https://millionrounds.com/fund/cisco-investments) Corporate VC **1** round [Walden Venture Capital](https://millionrounds.com/fund/walden-venture-capital) VC firm **1** round [Brightstone Venture Capital](https://millionrounds.com/fund/brightstone-venture-capital) VC firm **1** round [Ben Yu](https://millionrounds.com/fund/ben-yu) Angel **1** round Dell Technologies Capital/ M12 no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=cnex-labs). ## Also claim to have backed them This firm lists CNEX LABS as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above. [M12](https://millionrounds.com/fund/m12) Corporate VC Per its own site ## Quick answers about CNEX LABS ### Who invested in CNEX LABS? CNEX LABS's investors include Sierra Ventures, Alumni Ventures, Walden International, Cisco Investments and Walden Venture Capital, and 3 more on record. ### How much has CNEX LABS raised? CNEX LABS has raised $78M across 5 rounds since 2013. ### When did CNEX LABS last raise? CNEX LABS's most recent round was a Growth of $15M in May 2022. ### What was CNEX LABS's biggest round? CNEX LABS's largest round on record is $23M (Series D), in Oct 2018. ### Who backed CNEX LABS first? CNEX LABS's first round on record, in Aug 2013, was backed by Ben Yu. ### What stage is CNEX LABS at? CNEX LABS's latest named round is a Growth, in May 2022. ### Where is CNEX LABS based? CNEX LABS is based in the United States. ## Companies like CNEX LABS In the same sector, and raised in the last eighteen months. [**Apex** $1.1B · Oct 2026](https://millionrounds.com/company/apex)[**ZwitterCo** $58M · Oct 2026](https://millionrounds.com/company/zwitterco)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Arda** $233M · Oct 2026](https://millionrounds.com/company/arda)[**Tenstorrent** $3.0B · Oct 2026](https://millionrounds.com/company/tenstorrent) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app