# Efficient Computer funding: rounds and investors > Efficient Computer has raised $173M across 3 rounds since 2023. Investors include Union Square Ventures, BoxGroup and SE Ventures. Every round with its source. Source: https://millionrounds.com/company/efficient-computer (Millionrounds; every figure on the page links to its filing or article) United States · [Series B startup](https://millionrounds.com/companies) # Who invested in *Efficient Computer* 3 rounds we have observed, with the 7 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. AI Energy IT Services Semiconductors Raised 2 months ago Funding summary Updated 26 Oct 2026 **$173M** raised across 3 rounds since 2023, from 3 sources **$16M** Seed **$60M** Series A **$97M** Series B - **Latest round:** Series B, $97M Sept 2026 - **Step-up i:** 1.6× - **Investors:** 7 (1 led) 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. 2024 2025 2026 **$16M** Seed **$60M** Series A **$97M** Series B - **First round:** Seed, $16M - **Biggest round:** $97M - **Usual gap between rounds:** 2.3 years ## The rounds - **Sept 2026** Series B **$97M** *1 new* *3 returning* [BoxGroup](https://millionrounds.com/fund/boxgroup) [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) [TQ Ventures](https://millionrounds.com/fund/tq-ventures) [Eclipse](https://millionrounds.com/fund/eclipse) Source recorded - **Feb 2026** Series A **$60M** *5 new* *1 returning* [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) Lead [BoxGroup](https://millionrounds.com/fund/boxgroup) [TA Ventures](https://millionrounds.com/fund/ta-ventures) [SE Ventures](https://millionrounds.com/fund/se-ventures) [Toyota Ventures](https://millionrounds.com/fund/toyota-ventures) [Eclipse](https://millionrounds.com/fund/eclipse) Reported by Union Square Ventures - **Dec 2023** Seed **$16M** *1 new* [SE Ventures](https://millionrounds.com/fund/se-ventures) Source recorded ## Founders and team From Efficient Computer's own website: 11 on the team. - **Brandon Lucia** Chief Executive Officer - **Graham Gobieski** Chief Technology Officer - **Nathan Beckmann** Chief Architect - **Mandeep Singh** Head of Product - **Peter Park** Head of Legal & Compliance - **Philip Lewer** Head of Product - **Tyler Hall** VP of Operations - **Adam Kaufman** Director of Marketing - **Renee Schumm** Executive Assistant & Office Manager - **Troy Rea** Director of Supply Chain and Operations - **Yaw Tong** Lead Physical Design Engineer ## 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** 2023 **Series A** 2026 **Series B** 2026 [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) L [BoxGroup](https://millionrounds.com/fund/boxgroup) [SE Ventures](https://millionrounds.com/fund/se-ventures) [Eclipse](https://millionrounds.com/fund/eclipse) [TA Ventures](https://millionrounds.com/fund/ta-ventures) [Toyota Ventures](https://millionrounds.com/fund/toyota-ventures) [TQ Ventures](https://millionrounds.com/fund/tq-ventures) ## Everyone who backed them [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) VC firm **2** rounds, led 1 [BoxGroup](https://millionrounds.com/fund/boxgroup) VC firm **2** rounds [SE Ventures](https://millionrounds.com/fund/se-ventures) Corporate VC **2** rounds [Eclipse](https://millionrounds.com/fund/eclipse) VC firm **2** rounds [TA Ventures](https://millionrounds.com/fund/ta-ventures) VC firm **1** round [Toyota Ventures](https://millionrounds.com/fund/toyota-ventures) VC firm **1** round [TQ Ventures](https://millionrounds.com/fund/tq-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=efficient-computer). ## Also claim to have backed them These 2 firms list Efficient Computer as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) VC firm Per its own site [TO VC](https://millionrounds.com/fund/to-vc) VC firm Per its own site ## Quick answers about Efficient Computer ### Who invested in Efficient Computer? Efficient Computer's investors include Union Square Ventures, BoxGroup, SE Ventures, Eclipse and TA Ventures, and 2 more on record. ### How much has Efficient Computer raised? Efficient Computer has raised $173M across 3 rounds since 2023. ### When did Efficient Computer last raise? Efficient Computer's most recent round was a Series B of $97M in Sept 2026. ### What was Efficient Computer's biggest round? Its most recent round, $97M in Sept 2026, is also its largest on record. ### Who backed Efficient Computer first? Efficient Computer's first round on record, in Dec 2023, was backed by SE Ventures. ### What stage is Efficient Computer at? Efficient Computer's latest named round is a Series B, in Sept 2026. ### Where is Efficient Computer based? Efficient Computer is based in the United States. ### Who led Efficient Computer's rounds? Union Square Ventures led the Series A in 2026. ## Companies like Efficient Computer In the same sector, and raised in the last eighteen months. 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