Proterra
Building innovative battery technologies to power a better, more sustainable world.
549 employees · est. 2004 · Burlingame, United States
Proterra is the older company (2004 vs 2017); Proterra is the larger of the two.
Side-by-Side Comparison
| Metric | Proterra | ReJoule |
|---|---|---|
| Founded | ||
| Founded | 2004 older | 2017 |
| Headquarters | ||
| Headquarters | Burlingame, United States | Signal Hill, United States |
| Employees | ||
| Employees | 549 larger | 22 |
| Industry | ||
| Industry | Energy, Manufacturing | Hardware, Energy Storage |
| Funding Stage | ||
| Funding Stage | Post Ipo Equity | Convertible Note |
| Total Funding | ||
| Total Funding | $904.11M | $15.53M |
| Funding Rounds | ||
| Funding Rounds | 12 | 9 |
| Services | ||
| Services | Design and manufacturing of advanced battery solutions for electric vehicles and transportation electrification | Not tracked yet |
| Target Customers | ||
| Target Customers | Transportation and equipment manufacturers transitioning to zero-emission vehicles, including heavy-duty truck manufacturers, commercial transit operators, school bus companies, off-highway equipment providers, specialty vehicle manufacturers, and medium-duty vehicle OEMs | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Battery Technology, Zero-Emission Vehicles, Clean Transportation, Commercial Electric Vehicles, Electric Vehicle Range, Battery Solutions, Integrated Systems, Battery Manufacturing, Sustainable Transportation, Industrial Batteries | Battery Diagnostics, Sustainable Energy, Battery Waste Management, Electric Vehicles, Battery Energy Storage Systems, Data Extraction, Innovation, Battery Life Cycle, Clean Energy, Technology, Startup, Investing |
| Website | ||
| Website | proterra.com | rejouleenergy.com |
About Proterra
Proterra is a company that is focused on developing innovative battery technologies to drive a more sustainable world. Established in 2004 and headquartered in the United States, Proterra is making significant strides in the Energy and Manufacturing sectors. The company is dedicated to transforming...
About ReJoule
ReJoule is a hardware and energy storage startup, founded in 2017 with the slogan of "Maximizing the Value of Every Battery." They are addressing the increasingly crucial issue of sustainable battery-waste management, particularly in the clean energy future. The company's innovation lies in battery...
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Funding, hiring, leadership and stack changes at Proterra and ReJoule — by email.
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Compiled from the BounceWatch company index. We last looked at Proterra on 13 Jun 2025, and ReJoule on 12 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.