As Britain’s banks and wealth managers scramble to put AI agents in front of their customers, one Edinburgh-based fintech startup is betting that the more interesting opportunity lies not in building those agents, but in keeping them honest. Aveni has raised £12 million to do exactly that, in a round led by PXN Ventures that doubles down on what the company argues is the thorniest unsolved problem in financial services AI: how do you prove an AI agent is treating real customers fairly?
The round was supported by existing investors Puma Growth Partners, Lloyds Banking Group, Nationwide, and Scottish Enterprise, a roster that tells its own story about where this company sits in the UK financial establishment. The cash will accelerate development of Aveni’s Unified Assurance Platform and fund the launch of two new products, Agent Assure and Agent Approve, both purpose-built to assess the conduct risk of AI agents that interact directly with consumers.
Founded in 2018 as a University of Edinburgh spin-out, Aveni has spent seven years embedding itself in UK financial services rather than chasing the flashier corners of the AI market. Its existing products are already deployed across major banks, wealth managers, and advisers: Aveni Assist, a productivity tool for advisers and operations teams, and Aveni Detect, a compliance monitoring product. Both are built on FinLLM, the company’s proprietary suite of specialist small language models trained on UK financial services data, which it describes as the UK’s first large language model built specifically for the sector.
The pitch behind this raise rests on a striking claim about how unprepared the industry is. Aveni reckons that just 2% of firms report having adequate AI guardrails in place, even as adoption of agentic AI accelerates. The company argues that the absence of robust, regulated oversight for AI agents talking directly to customers is the single biggest obstacle to deploying the technology at scale, and that regulators have made clear consumer outcomes must be assessed consistently whether an interaction is handled by a human or a machine.
That regulatory framing is central to Aveni’s positioning. The company is a participant in the Financial Conduct Authority’s Supercharged Sandbox programme and has set up an Agent Assurance Expert Council to help develop responsible AI governance frameworks, working directly with regulators and industry bodies on emerging standards. Agent Assure, billed as a natural extension of Aveni Detect, is designed to let firms monitor and manage the conduct risk of AI agents alongside human interactions in a single view. Together with Aveni Assist, Aveni Detect, and Agent Approve, it forms the Unified Assurance Platform, which Aveni claims is the industry’s first comprehensive framework for assuring both human and agent interactions with consumers at scale.
Joseph Twigg, CEO of Aveni, said:
“The continued confidence shown by our existing investors is a powerful endorsement of the direction we’re taking. We have spent seven years building the models, the experience and the regulatory relationships that make us uniquely qualified to solve the hardest problem in AI adoption right now: how do you assure the conduct of an AI agent interacting with a real consumer? Agent Assure is our answer — and this investment accelerates our ability to deliver our full platform at scale.”
For lead investor PXN Ventures, the venture arm formed from the merger of Praetura Ventures and Par Equity, the appeal is as much about geography as technology. The firm has been vocal about backing founders outside London and the South East, and Aveni fits that thesis neatly.
Alastair Moore at PXN Ventures, said:
“Aveni is fast becoming financial advisers’ go-to tool for helping them leverage AI in a safe and appropriate way. The team now has seven years of live deployments and proprietary models built within the UK financial services sector. Their infrastructure is answering one of the biggest questions in AI adoption: how to manage real client interactions and build trust, so advisers can focus on what they do best. We’re proud to support Aveni through multiple PXN funds, including the Praetura Growth VCT, as they continue their growth journey and demonstrate the world-class fintech capabilities of the North of the UK.”
The presence of two of Britain’s largest retail lenders on the cap table underscores how seriously incumbents are taking the assurance question. Lloyds in particular has framed its involvement as both investment and partnership.
Kirsty Rutter, Fintech Investment Director at Lloyds Banking Group, said:
“Agentic AI represents a significant opportunity for financial services to enhance customer experience through more personalised interactions. Aveni is helping firms adopt this technology in a safe and responsible way. We’re pleased to continue supporting Aveni’s ongoing development through investment and partnership.”
Ben Leslie, Investment Director at Puma Growth Partners, added that robust assurance for AI agents is “rapidly becoming a core requirement for the sector,” and pointed to Aveni as a standout example of Scotland’s growing strength as a technology hub.
The round lands at a moment when the wider mood around fintech funding is mixed, with European investment softening in the first quarter of the year even as appetite for AI-led propositions holds up. Aveni’s wager is that as agents move from pilot projects to live customer interactions, the unglamorous business of assuring them will become unavoidable. If the company is right that only a sliver of firms are currently equipped for that, the timing of this raise may prove shrewd.
