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Mainspring Energy
ActiveOperating status — whether the company still runs independently. “Closed” usually means it was acquired, merged, or shut down.🔥 HighHeat score — how much recent activity & attention the company has (web traffic, news, hiring).📈 Low growthGrowth score — momentum trend across web traffic, headcount and other growth signals. Menlo Park, California, United States Founded 2010 251-500 employees For Profit
Mainspring Energy provides power generation technology using linear generators for clean energy.
Total Funding
Available in Pro Last Funding
Available in Pro Acquisitions
0
Monthly Visits
Available in Pro Contacts
329
Patents
93
5 trademarks
Company Details
Funding & Financials
Pro- Total funding
- Funding rounds
- Last funding
- Last funding type
- Last funding date
- Funding status
- Total equity funding
- Revenue range
IPO & Stock
- IPO status
- Private
- Valuation range
- $1B to $10B
Web Traffic
Pro- Monthly visits
- Global traffic rank
- 6-mo avg visits
- Visit duration (s)
- Pages / visit
- Bounce rate
- Rank change (mo)
Technology & IP
- Active technologies
- 9
- Active products
- 7
- Patents granted
- 93
- Trademarks
- 5
- Top patent class
- Hot-Gas Or Combustion-Product Engine Plants
- IT spend
- $4M
Company Info
- Founded
- 2010
- Employees
- 251-500
- Operating status
- Active
- Company type
- For Profit
- Org types
- company
- Founders
- 3
- News articles
- 72
- HQ
- Menlo Park, California, United States
- Region
- San Francisco Bay Area, Silicon Valley, West Coast
- Diversity spotlight
- Women Founded; Women Led
Signals & Scores
- Heat score
- High
- Growth score
- Low
- Trend (7d)
- -0.2
- Trend (30d)
- -1.4
- Trend (90d)
- -0.8
- Last leadership hire
- Jun 10, 2026
Key People at Mainspring Energy
CEO
Founder
CTO and Founder
Staff Technical Program Manager
CPO and Founder
Chief Financial Officer
Mechanical Engineering Manager
Corporate Controller
329
professional contacts at Mainspring Energy
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