On AI Lounge since Oct 2026

Steve Castle

@stevedatasapienMember #210FounderL1

Co-Founder, DataSapien Limited

Device-native AI that runs private personalisation inside brands' own apps

London, UK DataSapien Limited LinkedIn

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About

Steve Castle is a co-founder of DataSapien, a London company whose device native AI platform runs inside a brand's existing customer app, on the customer's own device and with their permission, to deliver private personalisation. He is a chartered accountant (FCA), founder and CEO of DataCave, and a group board director with international experience in insurance and financial services. Steve is also an active angel investor and a qualified data ethics professional.

Skills

AI-Assisted CodingInvesting & VCFinance & FP&A

Stack

Claude1 tool

Raises & exits

Member Raises

Capital raised

DataSapien · On-device AI personalisation

$375K

Seed · 2 rounds

Led by ABC Investments · with Fuel Ventures

DataSapien has raised about $375K, including a seed round with Fuel Ventures as investor and ABC Investments as lead on an Angels Den round, though PitchBook also lists an earlier equity crowdfunding round that may be part of that total.

Source 1: pitchbook.com ↗Source 2: angelsden.com ↗

Exits

Hall of Fame →

Abc Insurance Solutions

Acquired by Liverpool Victoria (LV=) · 2006 · Co-founder & Finance Director

Undisclosed

ABC Insurance Solutions, a Croydon-based start-up insurer, was acquired by Liverpool Victoria (LV=) in September 2006 at an undisclosed price.

Source 1: pitchbook.com ↗Source 2: en.wikipedia.org ↗

Experience

Experienced Group Board Director. Global/International Insurance and Financial Services expertise. Active Seed/Early Stage Angel Investor, Serial Founder, Qualified Data Ethics Professional. Open to NED opportunities.