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# tem
- URL: https://entrepreneurplus.co.uk/startups/tem/
- Published: 2026-11-11T15:46:38.000Z
- Updated: 2026-11-11T15:46:38.000Z
- Description: AI-driven platform letting businesses buy clean electricity directly from generators.
- Author: Editorial Desk
- Tags: #ep-startup

AI-driven platform letting businesses buy clean electricity directly from generators.

- Climate & Energy
- Series B+
- London

Sector

Climate & Energy

Stage

Series B+

Based in

London

Founded

2021

Funding raised

$94M

Website

[tem.energy](https://tem.energy/?ref=entrepreneurplus.co.uk)

tem operates an AI-native energy transaction platform that matches commercial electricity buyers with renewable generators, bypassing wholesalers and brokers. Its software handles contracting, matching and settlement so businesses can buy clean power directly and generators can sell it more predictably. Founded in London in 2021 by Joe McDonald, Jason Stocks, Bartlomiej Szostek and Ross Mackay, the company has facilitated more than 2 TWh of energy transactions and passed $300 million in annualised gross transaction value. After a $14 million Series A led by Atomico in July 2025, it closed an oversubscribed $75 million Series B led by Lightspeed in February 2026, with Hitachi Ventures, Allianz and Schroders participating.

## Team

- **Joe McDonald**, Co-founder & CEO
- **Jason Stocks**, Co-founder
- **Bartlomiej Szostek**, Co-founder
- **Ross Mackay**, Co-founder

## Backed by

- [![](https://storage.ghost.io/c/05/a4/05a4a052-18ab-4836-8924-ec8b322c371c/content/images/2026/10/albionvc-logo.svg)AlbionVC](https://entrepreneurplus.co.uk/investors/albionvc/)
- [AAtomico](https://entrepreneurplus.co.uk/investors/atomico/)
- [![](https://storage.ghost.io/c/05/a4/05a4a052-18ab-4836-8924-ec8b322c371c/content/images/2026/10/lightspeed-venture-partners-logo.svg)Lightspeed Venture Partners](https://entrepreneurplus.co.uk/investors/lightspeed-venture-partners/)

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