About Rhombus Energy Solutions
Rhombus Energy Solutions is a Transportation, Automotive & Logistics company based in San Diego (United States) founded in 2012 by Parthiv Patel and Rick Sander, and was acquired by BorgWarner in August 2022. Efficient power electronics for renewable energy and storage are developed. It operates in the Transportation, Automotive & Logistics and Energy & Utilities sectors. Rhombus Energy Solutions has raised $10.98 million across 5 funding rounds from investors including BorgWarner, Cycle Capital and İnci Holding. Its chief executive, as recorded, is Rick Sander. Its focus areas include Energy Tech, Energy Storage Tech, Charging and Devices. Its legal entity is Rhombus Energy Solutions, Inc. Its competitors include Nuvve, Fermata Energy and Intertie; 1 of its 3 listed competitors has raised funding.
Company details
Rhombus Energy Solutions was founded in 2012 in San Diego, United States. Power management and energy storage solutions are designed and developed by the company, with emphasis on energy conversion and control systems. Operations focus on renewable energy integration, microgrids, electric motor control, regenerative energy recovery, and battery management. Products support applications in sustainable power infrastructure across various sectors.
- Headquarters San Diego, United States
- Founders Parthiv Patel, Rick Sander
- Stage Acquired
- SectorsTransportation, Automotive & LogisticsEnergy & Utilities
- Email••••••••
- Phone•••• ••••
- Website rhombusenergysolutions.com
- Social LinkedIn X
- Acquired by BorgWarner (Aug 2022)
- Legal Name Rhombus Energy Solutions, Inc
- Total Equity Funding$10.98M (USD)
in 5 rounds
- Latest Funding Round$4.15M (USD), Series D
Apr 2022
- InvestorsBorgWarner
& 6 more
- Acquired byBorgWarner
(Aug 2022)
Funding Insights of Rhombus Energy Solutions
Rhombus Energy Solutions has successfully raised a total of $10.98M across 5 strategic funding rounds. The most recent funding activity was a Series D round of $4.15 million completed in April 2022. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $10.98M
- Total Rounds 5
- Last Round Series D — $4.15M
- First Round $2.8M
(Mar 2015)
- Investors Count 6
All 5 funding rounds of Rhombus Energy Solutions with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Apr 2022 | $4.15M | Series D | – | – | – |
| Sep 2020 | Series C | – | Emerald Technology Ventures | ||
| Dec 2018 | $3.57M | Series A | – | – | – |
| May 2017 | $455,000 | Series A | – | – | – |
| Mar 2015 | $2.8M | Series A | – | – |
7 investors in total: 7 institutional.
Investors in Rhombus Energy Solutions
Rhombus Energy Solutions has secured backing from 7 investors, including venture fund and institutional investors. Prominent investors backing the company include BorgWarner, Cycle Capital and İnci Holding.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Cycle Capital is engaged in venture capital for clean tech innovations. | cyclecapital.com | Montreal, Canada | ||
| nabtesco-ventures.com | ||||
Growth equity capital is provided by GHC Partners for industrial innovation. | greenhousecap.com | Sausalito, United States | ||
Sustainable industrial innovation is supported through venture capital investments. | emerald.vc | Zurich, Switzerland | ||
İnci Holding is engaged in automotive, technology, and logistics sectors. | 1952 | inciholding.com | Turkey | |
| goldenregent.com | ||||
Manufacturer of multiple automotive parts and accessories | 1928 | borgwarner.com | Auburn Hills, United States |
Investor details for Rhombus Energy Solutions
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
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People of Rhombus Energy Solutions
275 people are tracked at Rhombus Energy Solutions (98 in leadership, 6 in board & advisors, 171 in team).
| Name | Role | Group |
|---|---|---|
Parthiv Patel | Co-Founder | Leadership |
Rick Sander | Co-Founder & CEO | Leadership |
Paul Farrell | Executive Vice President And Chief Strategy Officer | Leadership |
Edwin Xu | General Manager,fis Yantai Plant | Leadership |
Shawn Li | VP & President of BorgWarner China & VP & GM of PowerDrive Systems, Asia | Leadership |
Joel Bennat K | Business Head | Leadership |
Thomas Steinmetz | Director Of Sales And Program Management | Leadership |
Brian Kappler | Director - Launch, Battery Systems | Leadership |
Andy Mickus | Director Shared Services | Leadership |
Stefan Demmerle | President & General Manager Powerdrive Systems | Leadership |
Yoshiyasu Kato | Head Of Sales And Program Management, Emissions, Thermal | Leadership |
Pierre Boitard | Vice President And General Manager ETTS Asia | Leadership |
Eddie Sander | Director, Investor Relations | Leadership |
Guenther Raab | Vice President Of Engineering Powerdrive Systems | Leadership |
Tania Wingfield | Executive Vice President & Chief Human Resource Officer | Leadership |
Frans Verbeke | Director Of Program Management Europe (power Drive Systems) | Leadership |
Simon Lv | Sales Director | Leadership |
Frederic B. Lissalde | President & CEO | Leadership |
Tim Bennett | Human Resources Business Partner | Leadership |
Thomas Foster | Director, Systems Engineering & PMT At Borgwarner Drivetrain And Morse Systems | Leadership |
255 more people are available in the full profile.
Complete people profiles for Rhombus Energy Solutions
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
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Timeline of Rhombus Energy Solutions
4 dated milestones of Rhombus Energy Solutions across 10 years, from founding to its latest funding, stage changes and deals.
- Founded Rhombus Energy Solutions is founded.
- Funding First funding round of $2.8M.
- Funding Latest funding round, Series D, of $4.1M.
- Exit Acquired by BorgWarner.
Competitors of Rhombus Energy Solutions
Rhombus Energy Solutions has 3 listed competitors in our database, 1 of them funded. They include Nuvve, Fermata Energy and Intertie.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| nuvve.com | 2011 | El Cajon, United States | 56 | V2G solutions for EV charging and grid services are provided. | ||
| fermataenergy.com | 2010 | Charlottesville, United States | $50.57M | 14 | Vehicle-to-grid systems are developed for electric vehicle energy storage. | |
| intertie.com | 1998 | Sausalito, United States | 10 | AI-driven energy management for buildings is provided by Intertie. |
Detailed competitors of Rhombus Energy Solutions
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- Full competitor set
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Top companies in Electric & Green Mobility
3 companies that operate in the same segment as Rhombus Energy Solutions (Electric & Green Mobility) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Electric kick-scooters are rented through an app-based platform. | 2017 | Miami, Florida, United States | USD 765 M | USD 244.66 M | 953 | |
Electric kick-scooters are rented through an app-based platform. | 2017 | San Francisco, California, United States | USD 1.4 B | 2,813 | ||
Electric buses and charging systems are manufactured for fleets. | 2004 | Burlingame, California, United States | USD 857.79 M | USD 309.36 M | 418 |
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Related news about Rhombus Energy Solutions
Complete news archive for Rhombus Energy Solutions
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Frequently Asked Questions about Rhombus Energy Solutions
Rhombus Energy Solutions was founded in 2012 and raised its 1st funding round 3 years after it was founded.
Rhombus Energy Solutions is headquartered in San Diego, United States. It is registered at San Diego, California, United States.
Rick Sander is the CEO of Rhombus Energy Solutions, as recorded in our data. They have also founded this company.
Rhombus Energy Solutions is a funded company, having raised a total of $10.98M across 5 funding rounds to date. The company's 1st funding round was a Series A of $2.8M, raised on Mar 2015.
Rhombus Energy Solutions was founded in 2012 in San Diego, United States. Power management and energy storage solutions are designed and developed by the company, with emphasis on energy conversion and control systems. Operations focus on renewable energy integration, microgrids, electric motor control, regenerative energy recovery, and battery management. Products support applications in sustainable power infrastructure across various sectors.
Rhombus Energy Solutions's top competitors include Fermata Energy, Nuvve and Intertie.
Rhombus Energy Solutions has 7 investors. Key investors include BorgWarner, Cycle Capital, İnci Holding, Nabtesco Technology Ventures, and GHC Partners.
Rhombus Energy Solutions operates through Rhombus Energy Solutions, Inc.
Yes. Rhombus Energy Solutions was acquired by BorgWarner in August 2022.

