Top Tech Startups in London, United Kingdom in 2026

Alchemy is a fractional collective, not a staffing agency and not a management consultancy in the old mould. We exist because two things are true at once: senior technology and AI leadership is in more demand than ever, and fewer people want the traditional full-time employment relationship attached to delivering it. Founded by David Viney, a Fractional CIO and AI Transformation Director with 30+ years leading technology at WPP, Heathrow Airport, BSI, Arup and the BBC, Alchemy takes on established fractional-consulting incumbents directly, with a leaner, sharper model built for how this kind of work should actually operate. The hard problem we're solving is matching: clients need proven, board-ready technology leadership without the cost and rigidity of a permanent hire, and senior fractional professionals need a trusted network bringing them real engagements, rather than competing alone for scraps of visibility. We're building that bridge deliberately, one relationship at a time. Early stage, growing steadily, and already ranking prominently across major search engines and LLMs for "Fractional CIO London." Right now, the priority is forming the right connections ahead of the point where capacity becomes the real constraint.

We advise regulated firms on the obligations attaching to the artificial intelligence systems they build, buy and deploy. We identify which of those systems will fail regulatory scrutiny, and what must change before they are examined. Our work spans the EU Artificial Intelligence Act, UK GDPR, FCA Consumer Duty, the Senior Managers and Certification Regime, PRA model risk expectations, the Money Laundering Regulations, and the Equality Act. Most firms are subject to several of these at once. Few have assessed their systems against all of them. Engagements are fixed in scope and fixed in fee. Findings are cited to the article, and to the enforcement record that shows how regulators have actually applied it. Others advise on artificial intelligence among many things. We advise on nothing else. Strathwill Ltd, London. Company No. 17133379. Regulatory compliance advice. Not legal advice.

Winklix is a technology consulting and software development company focused on helping businesses grow through digital transformation. We work with startups, small and mid-sized businesses, and enterprises to design, build, and scale technology solutions that improve efficiency, customer experience, and long-term business performance. Our core expertise includes Salesforce consulting and implementation, AI and Generative AI solutions, mobile app development, custom software development, enterprise integrations, cloud services, digital commerce, and product engineering. We help organizations move from ideas to execution by combining technical depth with a strong understanding of business goals. Winklix serves clients across multiple industries, including real estate, healthcare, fintech, manufacturing, retail, logistics, and eCommerce. Whether a business needs a Salesforce partner, an AI-powered solution, a scalable mobile application, or custom enterprise software, our team works closely with clients to deliver practical, reliable, and future-ready solutions. With a growing international presence and a strong delivery foundation in India, Winklix is committed to building technology that creates measurable value. Our teams include consultants, architects, developers, designers, QA specialists, cloud experts, and AI professionals who collaborate to solve complex business challenges with speed and precision. What makes Winklix different is our focus on innovation with execution. We do not just recommend digital strategies — we build, integrate, optimize, and support them. From CRM modernization and business process automation to AI adoption and digital product development, we aim to simplify technology for our clients and help them stay competitive in a fast-changing market. At Winklix, we are also building a culture where talent can thrive. We encourage ownership, continuous learning, collaboration, and exposure to global projects across modern technologies.

Splitsense is building an AI agent that does conversion optimization the way a senior CRO specialist would, end to end and continuously. The problem we're solving is one every founder and growth team knows. You have analytics, heatmaps, session recordings and dashboards, but none of them tell you what to actually do. Turning that data into insight takes hours of digging. Turning insight into an experiment takes developer time most teams don't have. So most websites never get optimized at all, and the ones that do run a handful of tests a year instead of a steady stream. That's a hard problem because good CRO isn't one skill, it's a pipeline of them: reading funnels and spotting where users drop off, forming hypotheses worth testing, writing copy that converts, building variants without breaking the site, running the statistics honestly, and knowing what to test next. We're encoding that entire pipeline into autonomous agents. Splitsense crawls your site, learns your brand and audience, analyzes real visitor behavior through its own analytics and session replay, finds the leaks, then writes, launches and measures A/B tests on its own. Multi-armed bandits shift traffic to winners while tests run, so learning turns into revenue faster. The result: the kind of continuous experimentation program that used to require a CRO consultant, a copywriter, an analyst and an engineer, now available to a solo founder for the price of a SaaS subscription. We're a small, senior, fully remote team that ships fast and uses our own product on our own funnel every day. If you want your work to compound, everything we learn makes the agent smarter for every customer.