Nous raises £13m to take its household bills agent beyond Britain

The London start-up, which says its AI agent already switches suppliers and cancels subscriptions for almost 250,000 UK homes, has drawn new backing from Heartcore Capital and its seed investor Mosaic Ventures.

Nous, a London company whose artificial intelligence agent takes over the bills and paperwork of British households, has raised £13 million (about $17 million) to expand abroad and widen the range of regulated financial tasks its software can carry out for customers.

Heartcore Capital led the round, with Mosaic Ventures, which backed Nous at seed stage, returning. Chalfen Ventures, Joyance Partners and Bain Future Back Ventures also took part, alongside a group of angels from Monzo, GoCardless, Founders Factory, Faculty.ai and Onfido. The company did not disclose a valuation. finsmes

The raise tests a specific proposition: that families will give an AI system standing permission to act on their contracts, rather than simply advise them. Most of the largest investments in AI agents have gone to enterprise tools rather than consumer products, and Nous is wagering that households will let a single agent act on their bills, inboxes and calendars.

According to the company, it now manages more than £685 million of annual household spending in the UK, an average of £2,765 per home, across energy, broadband, mobile and car insurance. Once a household hands over responsibility, the agent searches for cheaper deals, carries out the switch, cancels subscriptions, fills in forms and flags costly renewal terms. It also maintains family calendars, sends deadline reminders and books local tradespeople. Nous says almost 250,000 homes use the service, with one new household joining roughly every minute.

The company’s headline saving, £734 for a typical household, is its own figure. One analysis noted that it amounts to roughly 27% of the spending the agent oversees, a high proportion in categories with thin margins, and that the result depends on how much of each household’s spending is actually switched and how savings are measured against a customer’s previous deal. Nous has not published its methodology.

Greg Marsh, the founder and chief executive, came to the business with a record in consumer technology. He is a former investor at Index Ventures and the founder of onefinestay, which he sold, and has said the idea for Nous came while he struggled with household bills during a bout of Covid that coincided with the birth of his second child. Nous announced a £6.6 million seed round in February 2022, when it was pitched as a tool for the cost-of-living squeeze. In 2023 it added an assistant built on OpenAI’s models combined with its own systems, and it left beta in 2025.

The company presents itself as a specialist rather than a general-purpose assistant. Its product pairs large language models with rules-based logic for sensitive actions, and it is registered with the Financial Conduct Authority, which allows it to support regulated activities such as buying insurance. Nous says it neither sells customer data nor earns money from advertising, arguing that this keeps the agent working for users rather than suppliers. Its free tier covers up to two household services, while a Premium plan at £6.99 a month per household adds unlimited services, round-the-clock admin support and cash rewards.

Marsh said the customer base runs against the image of AI as a hobby for early adopters. “The vast majority of our users are women, typically working mums, who have to carry much of the mental load for their household,” he said. He put the sum UK households spend each year on automatic payments at £1.7 trillion and predicted that more than half would be handled by agents within a decade.

Max Niederhofer, a general partner at Heartcore, said personal agents would “transform the way we make household purchasing decisions”, to the benefit of consumers.

Nous plans to spend the money on international expansion, new features, a broader set of regulated activities and more help with everyday chores. It has not named its first markets outside the UK. Marsh has also said Nous would like to move households’ idle cash into higher-interest savings accounts, a step that would take the agent from managing what families spend into managing what they keep.