Sure Valley Ventures leads $1.6m pre-seed round for London AI partnerships startup Souk

The second Sure Valley Ventures fund has led a $1.6 million pre-seed round into Join Souk Ltd, a London software company building an artificial intelligence agent for business-to-business partner programmes, according to a regulatory announcement issued on 3 September.

The announcement came from Mindflair plc (AIM: MFAI), an AIM-quoted investment company that holds an interest in the fund and was noting the transaction rather than making the investment directly. Mindflair said the round also included participation from Antler, Fuel Ventures and what it described as strategic angel investors from across the B2B software industry.

The money will be spent on product development as Souk builds out the core architecture of its platform, the announcement said.

What Souk is building

Souk sells what it calls an AI Partner Manager. The product is designed to help companies reactivate dormant partner relationships and lift the performance of B2B partnership programmes. At the centre of it is an autonomous agent named Coco, which the announcement says is intended to handle the partnership lifecycle end to end: sourcing partners, keeping them engaged, tracking performance and managing payouts.

The pitch rests on the state of the market it is entering. Mindflair said many partner programmes remain heavily reliant on manual processes, spreadsheets and email.

Souk’s own claims about traction are carried in the announcement but attributed to the company. According to information provided by Souk, its early deployments have sourced partnerships expected to contribute seven figures in pipeline, have secured contracts with several unicorn companies and have cut the manual work involved in partner acquisition. Those figures are the company’s and are not audited, and the announcement does not name the customers.

“Souk is applying AI to an important but often under-managed area of B2B growth,” said Nicholas Lee, a director of Mindflair, in the announcement. He added that the platform “is designed to automate the labour-intensive work involved in managing partner relationships and help companies derive greater value from existing networks”.

What the register shows

Join Souk Ltd is registered in England and Wales with company number 16552960 and was incorporated on 1 July 2025, matching the founding date given in the announcement. Its registered office is 5th Floor, 167-169 Great Portland Street, London W1W 5PF, moved there on 22 April 2026 from 32-38 Leman Street in Whitechapel. Its recorded nature of business is business and domestic software development, SIC code 62012.

The three founders named by Mindflair all appear on the register as directors appointed on the day of incorporation: Ayooluwa Alfonso, Leo Joseph Anthony Crowe and Sofia Eva Hamilton Sambrano. There have been no resignations. Mindflair said their backgrounds include Deel, BlackRock and GitHub, which the register does not record either way.

The filing history is consistent with a company that has been raising money in stages through 2026. Statements of capital follow share allotments on 8 March, 3 April and 30 June 2026, and on 22 July the company filed resolutions covering the allotment of securities, the removal of pre-emption rights and the adoption of new articles of association. That combination is the standard paperwork of a priced funding round, and our explainer on how UK cap tables work sets out why the sequence matters.

What the register does not do is put a value on any of it. Companies House records nominal share capital, not the cash raised, so the $1.6 million figure rests on Mindflair’s announcement alone. No accounts have been filed: the first set is made up to 31 July 2026 and is not due until 1 April 2027. The register also showed the company’s first confirmation statement as overdue as at 6 September, with a statement date of 30 June 2026 and a due date of 14 July.

Mindflair did not disclose the size of its interest in the fund, or how much of the $1.6 million came from Sure Valley Ventures as opposed to the other participants.

The wider picture

Fuel Ventures is a recurring name in this part of the market. It led the seed round at AI Score, and appears here as a participant rather than a lead. Our guide to pre-seed and seed funding stages covers what separates a round of this size from the one that usually follows it, and how UK AI startups get funded sets out the routes open to a company at this point.