Portfolio News | October 2026
October was another big month across the EF portfolio, with 8 companies announcing funding rounds, including a $50M Series B, new AI technologies launching across industries from electronics to healthcare, and another EF company announcing its acquisition.
Breakthroughs
Optimal was acquired by Source.ag, the Dutch AI platform used by more than 500 greenhouses across 25 countries. Founded by Dave Hunter at EF, Optimal built AI technology capable of autonomously controlling greenhouse environments, from heating and ventilation to lighting and irrigation. In commercial trials, the system delivered 13% higher yields while using 27% less energy. Its technology will now be integrated into Source.ag’s platform to bring autonomous growing to more greenhouses worldwide.
Crewline officially opened its new headquarters in Buda, Texas. The facility brings together engineering, manufacturing and a dedicated testing yard for its autonomous construction equipment. Crewline builds retrofit technology that allows existing heavy machinery, including rollers and bulldozers, to operate autonomously, helping construction companies increase productivity without replacing their fleets.
Asymmetric Security was featured in the Financial Times for its research into autonomous AI agents and cybersecurity. Its investigation highlighted the challenges of monitoring and auditing AI agents as they interact with real-world systems, raising important questions about security and oversight as increasingly autonomous AI tools become more widespread.
7 EF portfolio companies were featured in Sifted’s AI 100 ranking: Callosum, Jack & Jill, Inherent, Omnea, Uncovr, Arago and Build.
Fundraising updates
Scarlet raised a $50M Series B led by Headline to build a global certification body for AI medical devices. Founded by James Dewar and Jamie Cox, Scarlet is modernising how medical technologies are assessed and certified, helping companies bring new AI-powered products to market faster while maintaining rigorous regulatory standards.
Circuit Mind announced $25M in funding, including an $18.5M Series A led by Norwest Venture Partners. Founded by Tomide Adesanmi and Basilio Gentile, Circuit Mind builds AI software that automates electronic circuit design. Alongside the announcement, the company launched its Agentic Verification Engine, which uses AI agents to identify errors in circuit board schematics before engineers build physical prototypes.
ClarityCare raised a $16.5M Series A led by Headline to automate prior authorizations in healthcare. ClarityCare’s AI agent, Electra, helps health plans process medical requests faster, reducing administrative workloads and delays for patients. Its technology already supports workflows affecting 6 million people.
Helicon raised $16.5M to industrialise advanced composite manufacturing. Backed by AlleyCorp and other investors, Helicon is developing automated factories powered by specialized manufacturing models and robotics to produce complex composite structures at scale, with applications across aerospace, defense and autonomous systems.
Opply raised $7.5M led by Chalfen Ventures to scale its agentic AI operating system for consumer packaged goods companies. Its platform automates procurement, ingredient sourcing, supplier management and other supply chain workflows, helping food and beverage brands operate more efficiently.
CarbonFarm raised a €7M Series A led by Colam Impact to scale rice decarbonisation projects worldwide. Combining satellite monitoring, AI and project development, CarbonFarm helps rice producers measure and reduce methane emissions, improve water management and access climate finance. The company is already operating across 19 countries.
Iridium Credit raised $3M in a round co-led by Field Ventures and MGV to automate invoice verification for lenders. Its AI platform checks invoices against supporting documents, confirms payment obligations with customers and tracks collections, helping financing companies reduce manual work and identify potential fraud.
Voltaback raised €2.8M led by Serena to expand its EV charging reimbursement platform across Europe. Founded by Arnaud Tran and Adrien Guenard, Voltaback enables employers to reimburse employees for charging company vehicles at home without installing additional hardware. Its technology has already been adopted by 20% of CAC 40 companies.
A big October. On to November.
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