# BBOXX funding: rounds and investors > BBOXX has raised $167M across 9 rounds since 2013. Investors include Khosla Ventures, British International Investment and Mitsubishi Corporation. Source: https://millionrounds.com/company/bboxx (Millionrounds; every figure on the page links to its filing or article) United Kingdom · [Venture startup](https://millionrounds.com/companies) # Who invested in *BBOXX* 9 rounds we have observed, with the 10 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. Cleantech Energy Industry 4.0 Funding summary Updated 26 Oct 2026 **$167M** raised across 9 rounds since 2013, from 9 sources **$1.9M** Series A **$3.0M** Series B **$20M** Series C **$31M** Round **$19M** Series D **$618K** Series D **$68M** Series D **$23M** Series D - **Latest round:** Venture Apr 2025 - **Biggest round:** $68M Series D · Nov 2023 - **Investors:** 10 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 2023 2025 **$1.9M** Series A **$3.0M** Series B **$20M** Series C **$31M** Round **$19M** Series D **$618K** Series D **$68M** Series D **$23M** Series D **?** Venture - **First round:** Series A, $1.9M - **Biggest round:** $68M - **Usual gap between rounds:** 16 months ## The rounds - **Apr 2025** Venture **Amount undisclosed** *3 new* [British International Investment](https://millionrounds.com/fund/british-international-investment-bii) [Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) [AFI Ventures](https://millionrounds.com/fund/afi-ventures-by-ventech) Source recorded - **Jul 2024** Series D **$23M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Nov 2023** Series D **$68M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **May 2023** Series D **$618K** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Sept 2022** Series D **$19M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet - **Jan 2019** Round **$31M** No investor was named in the report. Reported by Digestafrica - **Aug 2016** Series C **$20M** *2 new* [MacKinnon](https://millionrounds.com/fund/mackinnon) [Bennett & Company](https://millionrounds.com/fund/bennett-and-company) Reported by FinSMEs - **Mar 2015** Series B **$3.0M** *2 new* [DOEN Foundation](https://millionrounds.com/fund/doen-foundation) [Bamboo Finance](https://millionrounds.com/fund/bamboo-finance) From a historical funding record - **Nov 2013** Series A **$1.9M** *3 new* [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) [Khosla Impact](https://millionrounds.com/fund/khosla-impact) [Synergy Growth](https://millionrounds.com/fund/synergy-growth) Reported by finsmes.com ## Funding filed with regulators BBOXX filed 6 raises, $111M in all. Filings say how much was sold and to how many investors; they never name the investors. - Jul 2024 **$23M** UK share allotment - Jan 2024 **$501K** UK share allotment - Dec 2023 **$271K** UK share allotment - Nov 2023 **$67M** UK share allotment - May 2023 **$618K** UK share allotment - Sept 2022 **$19M** UK share allotment ## 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** 2015 **Series C** 2016 **Round** 2019 **Series D** 2022 **Series D** 2023 **Series D** 2023 **Series D** 2024 **Venture** 2025 [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) [British International Investment](https://millionrounds.com/fund/british-international-investment-bii) [Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) [AFI Ventures](https://millionrounds.com/fund/afi-ventures-by-ventech) [Khosla Impact](https://millionrounds.com/fund/khosla-impact) [DOEN Foundation](https://millionrounds.com/fund/doen-foundation) [Bamboo Finance](https://millionrounds.com/fund/bamboo-finance) [MacKinnon](https://millionrounds.com/fund/mackinnon) [Bennett & Company](https://millionrounds.com/fund/bennett-and-company) [Synergy Growth](https://millionrounds.com/fund/synergy-growth) ## Everyone who backed them [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) VC firm **1** round [British International Investment](https://millionrounds.com/fund/british-international-investment-bii) Government **1** round [Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) VC firm **1** round [AFI Ventures](https://millionrounds.com/fund/afi-ventures-by-ventech) VC firm **1** round [Khosla Impact](https://millionrounds.com/fund/khosla-impact) VC firm **1** round [DOEN Foundation](https://millionrounds.com/fund/doen-foundation) Investment firm **1** round [Bamboo Finance](https://millionrounds.com/fund/bamboo-finance) Investment firm **1** round [MacKinnon](https://millionrounds.com/fund/mackinnon) Investment firm **1** round [Bennett & Company](https://millionrounds.com/fund/bennett-and-company) Growth equity **1** round [Synergy Growth](https://millionrounds.com/fund/synergy-growth) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=bboxx). ## Quick answers about BBOXX ### Who invested in BBOXX? BBOXX's investors include Khosla Ventures, British International Investment, Mitsubishi Corporation, AFI Ventures and Khosla Impact, and 5 more on record. ### How much has BBOXX raised? BBOXX has raised $167M across 9 rounds since 2013. One round did not disclose an amount, so the total is a floor. ### When did BBOXX last raise? BBOXX's most recent round was a Venture in Apr 2025. ### What was BBOXX's biggest round? BBOXX's largest round on record is $68M (Series D), in Nov 2023. ### Who backed BBOXX first? BBOXX's first round on record, in Nov 2013, was backed by Khosla Ventures, Khosla Impact and Synergy Growth. ### What stage is BBOXX at? BBOXX's latest named round is a Venture, in Apr 2025. ### Where is BBOXX based? BBOXX is based in the United Kingdom. ## Companies like BBOXX In the same sector, and raised in the last eighteen months. [**Go Eve** $6.1M · Oct 2026](https://millionrounds.com/company/go-eve)[**novosound** $8.7M · Sept 2026](https://millionrounds.com/company/novosound)[**Dragonfly Advanced Materials** $2.0M · Sept 2026](https://millionrounds.com/company/dragonfly-advanced-materials)[**Metris Energy** $7.5M · Sept 2026](https://millionrounds.com/company/metris-energy)[**AcouBatt** $3.0M · Sept 2026](https://millionrounds.com/company/acoubatt)[**Myriad Wind Energy Systems** $1.8M · Sept 2026](https://millionrounds.com/company/myriad-wind-energy-systems) ## 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