UK100 Start-Ups: Astral Systems

By Patricia Cullen | Mar 05, 2026

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ASTRAL CO-FOUNDERS TALMON FIRESTONE (LEFT) AND TOM WALLACE-SMITH (RIGHT)
ASTRAL CO-FOUNDERS TALMON FIRESTONE (LEFT) AND TOM WALLACE-SMITH (RIGHT)

This article is part of The UK100 Start-Ups, a special edition by Entrepreneur UK showcasing the most exciting startups redefining business in 2026. From climate and health to AI and creativity, these innovators are tackling big challenges—while racing to scale, secure funding, and attract top talent.

Deeptech firm, Astral Systems, is redefining what it means to be a fusion company. Its founders, who hail from science and tech backgrounds, are harnessing fusion’s potential to revolutionise modern medicine, industry, and clean energy. With bold innovation and global ambition, Astral is one of the UK’s most exciting technology ventures to watch (and most potentially the biggest tech name to come out of Bristol).

ASTRAL CO-FOUNDERS TALMON FIRESTONE (LEFT) AND TOM WALLACE-SMITH (RIGHT)
ASTRAL CO-FOUNDERS TALMON FIRESTONE (LEFT) AND TOM WALLACE-SMITH (RIGHT)

This article is part of The UK100 Start-Ups, a special edition by Entrepreneur UK showcasing the most exciting startups redefining business in 2026. From climate and health to AI and creativity, these innovators are tackling big challenges—while racing to scale, secure funding, and attract top talent.

Deeptech firm, Astral Systems, is redefining what it means to be a fusion company. Its founders, who hail from science and tech backgrounds, are harnessing fusion’s potential to revolutionise modern medicine, industry, and clean energy. With bold innovation and global ambition, Astral is one of the UK’s most exciting technology ventures to watch (and most potentially the biggest tech name to come out of Bristol).

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