New green tech startups in the US, October 2026
Updated October 31, 2026 · 19 first seen Jul 3 – Oct 1
Nineteen new green tech startup websites were first seen in the US between July 3 and October 1, 2026. Six of them appeared in the last seven days of that window. Ten of the 19 target large companies, and six target consumers.
Seven of this month's green tech startups
| Startup | What it does | Where |
|---|---|---|
| Siting Radargetsitingradar.com | Alerts energy developers to local siting moratoria and rule changes across US states. | US |
| Metro City Energymetrocityenergy.com | Develops resilient power infrastructure and renewable energy systems for urban areas. | Covina, CA |
| ecoSEMS by ecojivareachecojiva.com | AI energy management and commercial solar storage for industrial facilities. | Bloomfield Hills, MI |
| Calvin Synapsexcalvinsynapsex.com | Provides small wind power systems for homeowners seeking renewable energy. | Denver, CO |
| HomeSidegethomeside.com | A utility decision platform that compares energy offers for Ohio residents. | OH |
| Solidgeosolidgeotech.online | Turns mine tailings into sustainable construction materials using geopolymer technology. | San Francisco, CA |
| Origin Materialsoriginmaterialsgroup.us | Produces sustainable plant-based materials for industrial manufacturers and consumer product companies. | West Sacramento, CA |
12 more, with contact details, in FreshLeads.cc.
Start freeWho they sell to
| Large companies | 10 |
| Consumers | 6 |
| Other | 1 |
| Real estate | 1 |
| Small businesses | 1 |
Top cities
| New York, NY | 2 |
| Houston, TX | 1 |
| Denver, CO | 1 |
| Los Angeles, CA | 1 |
| West Sacramento, CA | 1 |
| Bloomfield Hills, MI | 1 |
California accounts for five of the 19, with Texas and New York at two each and Minnesota at two. Sixteen of the 19 list a state.
More from FreshLeads
How we count: a business is listed when its website was first seen 30 to 120 days ago, it is in the US, and it shows a real business. We leave out personal sites and sensitive categories such as health care. We show the name, the website, the city and a description we write. We never show emails, phone numbers or people's names on this page. Full method.
Source: FreshLeads.cc analysis of 19 new US websites, October 2026. You may reuse the counts with credit (CC BY 4.0).
Is your business listed? Claim it or remove it. Found an error? Tell us.