Gradient Labs, a London-based AI startup founded by former engineers from Monzo's AI team, has doubled its Series A funding round from $13 million to $26 million, the company confirmed this week. The additional investment round was led by Octopus Ventures and CommerzVentures, with follow-on backing from Redpoint Ventures and Exceptional Capital, according to sifted.eu.

The initial Series A round was announced in July last year and led by US venture capital firm Redpoint Ventures, alongside LocalGlobe, Puzzle Ventures, Liquid 2 Ventures, and Exceptional Capital. The new funding will support Gradient Labs in expanding its AI-powered vertical agents that automate customer service operations in finance, including lending, dispute resolution, and Know Your Customer (KYC) processes. Its client base includes Wise, Monzo, and insurtech company Zego.

Gradient Labs operates in a growing market of AI agents designed for customer service automation in the financial sector. Comparable startups such as San Francisco-based Sierra and Decagon have raised $950 million and $250 million respectively this year, targeting broader enterprise customer service needs. Gradient’s focus on finance differentiates it within this competitive landscape, leveraging its founders’ experience at Monzo to tailor AI solutions for financial services.

The company’s Series A round now totals $26 million, positioning Gradient Labs to further develop its AI technology and expand its client portfolio in the finance sector. The funding announcement was made public on June 1, 2026, as reported by sifted.eu.

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