The latest venture capital, seed, pre-seed, and angel deals for London startups for 16/4/2025 featuring funding details for Marshmallow, Portia AI, and much more. This page will be updated throughout the day to reflect any new fundings.
Marshmallow – $45M Venture
INSURTECH
Marshmallow, the car insurance platform that supports foreign-born drivers, has raised $45M in Venture funding led by Portage Ventures. Founded by Alexander Kent-Braham, David Goate, and Oliver Kent-Braham in 2017, Marshmallow has now raised a total of $161.2M in reported equity funding.
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Portia AI – £4.4M Venture
AI SECURITY
Portia AI, an open source platform for authentication of AI agents, has raised £4.4M in Venture funding led by General Catalyst. Founded by Emma Burrows and Mounir Mouawad in 2025, Portia AI is focused on creating trusted identity verification for autonomous AI systems.
