# Citibank's Cleantech Investments: 15 Startups in Its Portfolio (2026) > The 15 Cleantech startups Citibank has backed, by stage: $2.6B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/citi-cleantech-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Stage not reported 5 - [NineDot Energy](https://millionrounds.com/company/ninedot-energy) - [Estuary Power](https://millionrounds.com/company/estuary-power) - [Aspen Power](https://millionrounds.com/company/aspen-power) - [Capital Good Fund](https://millionrounds.com/company/capital-good-fund) - [MicroEra Power](https://millionrounds.com/company/microera-power) ## Series A 3 - [Hubcycle](https://millionrounds.com/company/hubcycle) - [*BY* Beike Yunhong](https://millionrounds.com/company/beike-yunhong) - [GameChange Solar](https://millionrounds.com/company/gamechange-solar) ## Growth 3 - [Enpal](https://millionrounds.com/company/enpal) - [Peregrine Energy](https://millionrounds.com/company/peregrine-energy) - [*CH* CNNC Huineng](https://millionrounds.com/company/cnnc-huineng) ## Series B 2 - [SustainCERT](https://millionrounds.com/company/sustaincert) - [*RH* Rongke Hydrogen](https://millionrounds.com/company/rongke-hydrogen) ## Pre-seed and seed 2 - [Raylo](https://millionrounds.com/company/raylo) - [*A* Alcove](https://millionrounds.com/company/alcove) ## Segment by segment ### Stage not reported 5 startups · $973M raised - [**NineDot Energy**](https://millionrounds.com/company/ninedot-energy) NineDot Energy develops battery storage sites and other energy solutions. United States $431M - [**Estuary Power**](https://millionrounds.com/company/estuary-power) Estuary Power develops, sponsors, and finances energy projects. United States $340M - [**Aspen Power**](https://millionrounds.com/company/aspen-power) Aspen Power Partners is a distributed generation platform with the dual mission of accelerating and democratizing decarbonization. United States $200M - [**Capital Good Fund**](https://millionrounds.com/company/capital-good-fund) Capital Good Fund is a community development financial firm that provides loans and financial services. United States $2.1M - [**MicroEra Power**](https://millionrounds.com/company/microera-power) Sustainable Low-cost, low-carbon HVAC for C&I buildings United States $275K ### Series A 3 startups · $32M raised - [**Hubcycle**](https://millionrounds.com/company/hubcycle) HUBCYCLE is a pioneering circular ingredients company based in France, focused on transforming food industry by-products into cert France $16M - [*BY* **Beike Yunhong**](https://millionrounds.com/company/beike-yunhong) Beike Yunhong is a new materials company that offers full services for disposal of hazardous waste and multi-source bulk industrial waste. - $14M - [**GameChange Solar**](https://millionrounds.com/company/gamechange-solar) GameChange Solar are changing the world by making the solar affordable. United States $1.7M ### Growth 3 startups · $1.5B raised - [**Enpal**](https://millionrounds.com/company/enpal) Enpal is a photovoltaics leasing firm that provides solar power systems for homeowners. Germany $1.0B - [**Peregrine Energy**](https://millionrounds.com/company/peregrine-energy) Peregrine Energy is a manufacturing company that specializes in the acquisition, development, and operations of renewable assets. United States $317M - [*CH* **CNNC Huineng**](https://millionrounds.com/company/cnnc-huineng) CNNC Huineng is a platform for the development, construction, operation of non-nuclear new energy industries. China $109M ### Series B 2 startups · $53M raised - [**SustainCERT**](https://millionrounds.com/company/sustaincert) SustainCERT is a carbon emissions accounting and verification platform for carbon markets and corporate value chains. Luxembourg $37M - [*RH* **Rongke Hydrogen**](https://millionrounds.com/company/rongke-hydrogen) Rongke Hydrogen is a hydrogen fuel cell R&D company, mainly engaged in hydrogen fuel cell research, manufacturing, and sales. China $16M ### Pre-seed and seed 2 startups · $48M raised - [**Raylo**](https://millionrounds.com/company/raylo) Raylo is a UK-based technology subscription and leasing platform that promotes a circular economy for consumer electronics. United Kingdom $42M - [*A* **Alcove**](https://millionrounds.com/company/alcove) United States $6.0M **How this map is made.** Every startup here works in Cleantech and has raised money in a round we track that names Citibank 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 **Citibank's Fintech portfolio** 79 startups · $17B](https://millionrounds.com/portfolio-maps/citi-fintech-portfolio)[Sector portfolio **Citibank's AI portfolio** 50 startups · $64B](https://millionrounds.com/portfolio-maps/citi-ai-portfolio)[Sector portfolio **Citibank's Big Data & Analytics portfolio** 11 startups · $797M](https://millionrounds.com/portfolio-maps/citi-big-data-analytics-portfolio)[Sector portfolio **Citibank's Web3 & Crypto portfolio** 11 startups · $597M](https://millionrounds.com/portfolio-maps/citi-web3-crypto-portfolio)[Sector portfolio **Citibank's Automotive & EVs portfolio** 10 startups · $4.0B](https://millionrounds.com/portfolio-maps/citi-automotive-evs-portfolio)[Co-investors **Who invests with Citibank** 247 co-investors](https://millionrounds.com/portfolio-maps/citi-co-investors) ## Raising from investors like Citibank? 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