# Business Growth Fund's Energy Investments: 11 Startups in Its Portfolio (2026)

> The 11 Energy startups Business Growth Fund has backed, by stage: $912M raised between them. From the rounds we track; updated nightly.

Source: https://millionrounds.com/portfolio-maps/bgf-energy-portfolio (Millionrounds; every figure on the page links to its filing or article)

## Stage not reported

7

- [3Sun](https://millionrounds.com/company/3sun)
- [Sunswap](https://millionrounds.com/company/sunswap)
- [Echion Technologies](https://millionrounds.com/company/echion-technologies)
- [Cold Bore Technology](https://millionrounds.com/company/cold-bore-technology)
- [STATS Group](https://millionrounds.com/company/stats-group)
- [Spex Group](https://millionrounds.com/company/spex-group)
- [Cheesecake Energy](https://millionrounds.com/company/cheesecake-energy)

## Series A

2

- [Gaussion](https://millionrounds.com/company/gaussion)
- [ACELERON](https://millionrounds.com/company/aceleron)

## Growth

2

- [Revive Active](https://millionrounds.com/company/revive-active)
- [M-Flow Technologies](https://millionrounds.com/company/m-flow-technologies)

## Segment by segment

### Stage not reported

7 startups · $837M raised

- [**3Sun**](https://millionrounds.com/company/3sun) 3Sun is an energy management company that specializes in designing photovoltaic solutions for large-scale industries and roof application. Italy $608M
- [**Sunswap**](https://millionrounds.com/company/sunswap) Sunswap is a British manufacturer specializing in fully electric, battery and solar-powered transport refrigeration units. United Kingdom $106M
- [**Echion Technologies**](https://millionrounds.com/company/echion-technologies) Echion Technologies is a leading battery technology company based in Cambridge, UK. United Kingdom $84M
- [**Cold Bore Technology**](https://millionrounds.com/company/cold-bore-technology) Cold Bore Technology is a privately held company based in Calgary, Alberta, specializing in well completions automation, data mana Canada $14M
- [**STATS Group**](https://millionrounds.com/company/stats-group) STATS Group is an engineering company and service provider operating in the arena of piping and pipeline integrity and maintenance. United Kingdom $12M
- [**Spex Group**](https://millionrounds.com/company/spex-group) SPEX Group is an oil and gas technology company based in Aberdeen, UK, founded in 2009. United Kingdom $7.6M
- [**Cheesecake Energy**](https://millionrounds.com/company/cheesecake-energy) Cheesecake Energy is developing advanced thermal and compressed air energy systems to store energy. United Kingdom $5.2M

### Series A

2 startups · $54M raised

- [**Gaussion**](https://millionrounds.com/company/gaussion) Gaussion is a London-based technology company that specializes in MagLiBTM, an innovative magnetic lithium-ion battery charging technology. United Kingdom $43M
- [**ACELERON**](https://millionrounds.com/company/aceleron) ACELERON is a UK-based clean technology company founded in 2016, focused on designing and manufacturing advanced lithium-ion batte United Kingdom $11M

### Growth

2 startups · $21M raised

- [**Revive Active**](https://millionrounds.com/company/revive-active) Revive Active is Ireland's leading health food supplement brand, established in 2011 and headquartered in Galway. Ireland $13M
- [**M-Flow Technologies**](https://millionrounds.com/company/m-flow-technologies) M-Flow Technologies aims to be the go-to provider of Multiphase metering and monitoring for the new era in upstream oil and gas production. United Kingdom $7.7M

**How this map is made.** Every startup here works in Energy and has raised money in a round we track that names Business Growth Fund as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

## More portfolio maps

[All portfolios](https://millionrounds.com/portfolio-maps)

[Sector portfolio **Business Growth Fund's Healthtech portfolio** 10 startups · $376M](https://millionrounds.com/portfolio-maps/bgf-healthtech-portfolio)[Sector portfolio **Business Growth Fund's Biotech portfolio** 10 startups · $172M](https://millionrounds.com/portfolio-maps/bgf-biotech-portfolio)[Portfolio map **Business Growth Fund portfolio map** 88 startups · $3.3B](https://millionrounds.com/portfolio-maps/bgf-portfolio-map)[Co-investors **Who invests with Business Growth Fund** 30 co-investors](https://millionrounds.com/portfolio-maps/bgf-co-investors)[Sector portfolio **Janus Henderson Investors' Biotech portfolio** 89 startups · $21B](https://millionrounds.com/portfolio-maps/janus-henderson-investors-biotech-portfolio)[Sector portfolio **Janus Henderson Investors' Pharma portfolio** 35 startups · $6.2B](https://millionrounds.com/portfolio-maps/janus-henderson-investors-pharma-portfolio)

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