Top Tech Startups in United Kingdom in 2026

We believe no one should be a stranger just because they don't share your language. Imagine two people, no shared language, talking as easily as old friends. That's exactly what we are building: real-time translation for real-world conversations. It sounds like it should already exist. It doesn't. We're a small, well-funded team in the heart of London, backed by people who built the tech already in your pocket, and we're right at the start. No one has built this before, including us, and that's the best part. The people here now are the ones shaping the product, and that could be you!

Sustenra is an independent advisory firm helping institutions strengthen the governance, oversight and long-term performance of funded programmes. We work with corporate foundations, philanthropic funders, financial institutions, impact investors and sustainability teams. Our work can begin before funding is committed, when organisations need to assess partners, governance, delivery structures and risk. It can continue during implementation, when stronger oversight, accountability or performance visibility is needed. We also support programmes when delivery is under pressure, relationships are strained or funding is changing or coming to an end. Sustenra was founded by three women with experience across programme delivery, funding, research, evaluation, policy and institutional governance. Between us, we have worked across the United Kingdom, Europe, North America, the Middle East, Africa, Eastern Europe and Central Asia. We are a senior-led firm. Clients work directly with experienced advisers who understand both institutional decision-making and the realities of programme delivery. We do not have an implementation arm or commercial referral model, which allows us to provide an independent view of what is working, what is not and what needs to change. Our aim is simple: to help institutions make better funding decisions, identify risks earlier and build programmes that remain credible and effective beyond the first funding cycle.

Maroon is a hybrid cryptocurrency exchange that combines a centralised order book with hybrid deposit wallets for which the user always retains a key. Through a smooth UX that enables and encouraging self-custody, we turn the “Don’t be evil” ethos into a “Can’t be evil” reality.