Signapse Secures £390.8k Series A to Expand AI Sign Language Translation

Cambridge-based generative AI company Signapse Ltd has closed a Series A funding round, raising an estimated £390.8k. The latest allotment, filed on 28 March 2026, brings the company's estimated post-money valuation to £10.4m.

Incorporated in February 2022, Signapse develops software that provides photo-realistic sign language translation for digital content. The company's technology automatically translates text and audio into British Sign Language and American Sign Language. Signapse targets organisations across the media, transportation, and healthcare sectors. By automating sign language interpretation for live broadcasts, websites, and public transport announcements, the company aims to significantly improve digital accessibility for the Deaf community.

The technology addresses a critical communication gap. Traditional sign language interpretation relies heavily on human translators, which can be costly and difficult to scale for continuous digital content or real-time public announcements. Signapse utilises generative AI to create unconstrained, lifelike digital signers, allowing public and private sector clients to integrate accessible communication into their daily operations. The company currently operates with a team of 19 employees.

The new Series A funding follows a period of steady technical development for the firm. The £390.8k round, allotted on 23 March 2026, represents a targeted capital injection. In mid-2024, Signapse secured a £2m seed round, which was led by Prague-based Soulmates Ventures and Dublin-based Deeptech Seed Fund. That earlier round also included participation from the Royal Association for Deaf people, Empirical Ventures, CEAS Investments, The FSE Group, and a £500k grant from Innovate UK. While the specific investors for this latest Series A allotment have not been publicly disclosed in the current filings, the round elevates the company's valuation to £10.4m. This reflects continued market confidence in its underlying generative AI technology and its commercial applications.

Signapse's latest funding aligns with a period of aggressive expansion and investment within the broader United Kingdom artificial intelligence landscape. According to recent government data, UK AI firms raised £6.0bn in 2025, representing a 52 percent annual growth rate and cementing the country's position as the largest AI sector in Europe.

Furthermore, the UK government's recently updated AI Opportunities Action Plan and UKRI's commitment of £1.6bn to the AI sector between 2026 and 2030 underscore a strong national mandate to support homegrown AI enterprises. Within this macroeconomic environment, deeptech companies that offer tangible societal benefits, such as improving accessibility, are well-positioned to attract both private venture capital and public institutional support. Signapse's ongoing development of unconstrained generative AI translation serves as a practical application of this technology, bridging the communication gap for the Deaf community while tapping into a robust domestic funding ecosystem.