# Bluespec funding: rounds and investors > Bluespec has raised $18M across 6 rounds since 2006. Investors include Atlas Venture and North Bridge Venture Partners & Growth Equity. Source: https://millionrounds.com/company/bluespec (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *Bluespec* 6 rounds we have observed, with the 2 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. Hardware & Electronics Robotics Funding summary Updated 26 Oct 2026 **$18M** raised across 6 rounds since 2006, from 6 sources **$4.5M** Series B **$4.3M** Series C **$2.0M** Venture **$1.0M** Venture **$1.5M** Seed **$5.0M** Venture - **Latest round:** Venture, $5.0M Feb 2023 - **Step-up i:** 3.3× - **Investors:** 2 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. 2006 2009 2012 2015 2018 2021 **$4.5M** Series B **$4.3M** Series C **$2.0M** Venture **$1.0M** Venture **$1.5M** Seed **$5.0M** Venture - **First round:** Series B, $4.5M - **Biggest round:** $5.0M - **Usual gap between rounds:** 20 months ## The rounds - **Feb 2023** Venture **$5.0M** *1 returning* [Atlas Venture](https://millionrounds.com/fund/atlas-venture) Source recorded SEC filing: $5.0M sold, first sale Feb 2021 - **Jan 2012** Seed **$1.5M** No investor was named in the report. Reported by sec.gov SEC filing: $1.5M sold, first sale Jan 2012 - **Feb 2011** Venture **$1.0M** No investor was named in the report. Reported by sec.gov SEC filing: $1.0M sold, first sale Feb 2011 - **Jun 2009** Venture **$2.0M** No investor was named in the report. From a historical funding record SEC filing: $2.0M sold, first sale Jun 2009 - **Oct 2007** Series C **$4.3M** *2 returning* [Atlas Venture](https://millionrounds.com/fund/atlas-venture) [North Bridge Venture Partners & Growth Equity](https://millionrounds.com/fund/north-bridge-venture-partners-and-growth-equity) Reported by bluespec.com - **Mar 2006** Series B **$4.5M** *2 new* [Atlas Venture](https://millionrounds.com/fund/atlas-venture) [North Bridge Venture Partners & Growth Equity](https://millionrounds.com/fund/north-bridge-venture-partners-and-growth-equity) From a historical funding record ## 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. **Series B** 2006 **Series C** 2007 **Venture** 2009 **Venture** 2011 **Seed** 2012 **Venture** 2023 [Atlas Venture](https://millionrounds.com/fund/atlas-venture) [North Bridge Venture Partners & Growth Equity](https://millionrounds.com/fund/north-bridge-venture-partners-and-growth-equity) ## Everyone who backed them [Atlas Venture](https://millionrounds.com/fund/atlas-venture) VC firm **3** rounds [North Bridge Venture Partners & Growth Equity](https://millionrounds.com/fund/north-bridge-venture-partners-and-growth-equity) VC firm **2** rounds Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=bluespec). ## Quick answers about Bluespec ### Who invested in Bluespec? Bluespec's investors include Atlas Venture and North Bridge Venture Partners & Growth Equity. ### How much has Bluespec raised? Bluespec has raised $18M across 6 rounds since 2006. ### When did Bluespec last raise? Bluespec's most recent round was a Venture of $5.0M in Feb 2023. ### What was Bluespec's biggest round? Its most recent round, $5.0M in Feb 2023, is also its largest on record. ### Who backed Bluespec first? Bluespec's first round on record, in Mar 2006, was backed by Atlas Venture and North Bridge Venture Partners & Growth Equity. ### What stage is Bluespec at? Bluespec's latest named round is a Venture, in Feb 2023. ### Where is Bluespec based? Bluespec is based in the United States. ## Companies like Bluespec In the same sector, and raised in the last eighteen months. [**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Optivolt** $37M · Oct 2026](https://millionrounds.com/company/optivolt)[**Arda** $233M · Oct 2026](https://millionrounds.com/company/arda)[**Kodama** $7.0M · Oct 2026](https://millionrounds.com/company/kodama)[**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