Tessaract raises £4.6M to bring law firm operations onto a single platform
October 28, 2025
Tessaract, a legal-tech company that builds operations software for law firms, has raised £4.6 million in an equity round led by Mercia Ventures, with participation from Fuel Ventures.
Most law firms run on a stack of disconnected tools: one system for case management, another for billing, separate ledgers for finance, and manual workflows holding it all together. The administrative overhead eats into time partners would rather spend on client work, and the data fragmentation makes it hard for managing partners to get a clear picture of how the business is performing.
Tessaract's cloud platform consolidates those functions — case management, billing, finance, compliance and client collaboration — into a single environment. Firms use it to onboard clients, manage matters and run financial reporting from one workflow, and the company plans to put a portion of this round into AI-powered process optimisation and financial intelligence tools tailored to the way law firms actually operate.
The company was founded in Singapore in 2017 by Cherilyn Tan, who is CEO, alongside co-founder Lim Siang Dat. It has grown from a team of five to a global operation and is already used by firms internationally. As part of the round, Tessaract is relocating its global headquarters from Singapore to London, with Mike Hinchliffe leading the UK operation as Managing Director. Earlier backers include Wavemaker Partners.
For Mercia, the bet is on vertical SaaS in a market that has been slow to modernise. Investor Adam Lovell described Tan as "an exceptional founder bringing clarity and efficiency to one of the most complex professional sectors" and pointed to the UK as one of the most progressive legal markets globally. The new capital will fund UK sales and customer success hiring, further product development, and use the relocated headquarters as a base for European expansion.
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