Tether is a Barcelona-based clean energy startup founded in 2023 that builds software to leverage private electric vehicles as AI-coordinated, distributed battery assets. Its technology learns the behavior of millions of EVs to coordinate charging patterns and bid vehicle flexibility on balancing markets. Tether says this approach can reduce CO2 output by up to 7,300 tonnes per MW over a car’s lifetime while generating additional revenue streams for OEMs and charge point operators. The company runs several pilots with major automakers and charge-point operators and is partnering directly with Audi and Zeekr. Tether plans to expand partnerships in the Nordics, Germany and Belgium, scale engineering and commercial teams, and deepen integrations with automakers and grid operators. The startup aims to launch its product across Nordic markets to accelerate grid resilience and energy efficiency.

Total raised

$2M

Funding rounds

1

Latest round

Seed

Latest activity

Jun 2025