U1CORE
163 City Road, EC1V 1JT London • Founded in 2023
U1CORE — A product studio for multi-sided platforms. Marketplaces, exchanges, auctions, fundraising
U1CORE: Product Studio for Marketplaces, Exchanges & Multi-Sided Platforms
$720M moved through one platform we built. Millions of live listings on another. 300+ products shipped.
🔔 Book a free call: https://calendly.com/hello-u1core/30min
🌐 https://www.u1core.com/
What you get
We do: the full platform. Multi-role flows, payments, trust & safety, admin tooling, infrastructure that holds at peak load.
You get: a product decision-makers trust on first impression, and users who move through it without friction.
So you can: grow revenue, close your round, automate operations, and charge a premium.
Services
Product Design: UI/UX, design systems, prototyping, platform-native patterns for marketplaces, auctions, exchanges, donation flows.
Product Engineering: React, Next.js, Vue; Node.js, Python, .NET; mobile, payments, multi-role architecture, admin tooling, DevOps.
Discovery & Strategy: cold-start strategy, trust & safety, take-rate modeling, MVP scoping, UX audits.
Custom Development: marketing sites and landing pages for platform companies.
Why founders pick us
One lane. Marketplaces, exchanges, auctions, donation platforms. We already know how products in your category delivered.
We lead. We arrive with a point of view, flag what won't work, and explain why.
One team, kickoff to launch. The product you ship is the product we built.
Twice the pace. Six weeks where others quote three months.
$720M+ processed.
CSS Design Awards (2× Site of the Day, 4× Best UX, 4× Best UI, 4× Best Innovation, 4× Special Kudos), Orpetron, TOP 10 on Dribbble.
300+ clients, and the ones who matter come back.
If your product only works when two sides of a market trust it at the same moment, that's our entire job. Let's talk.
Expertises
UX/UI Design100%
Pricing overview
What clients say
Les projets réalisés par U1CORE se situent dans une fourchette de 5 000 à 20 000 EUR, avec un budget médian de 10 000 EUR. La majorité des projets se concentrent autour de 10 000 EUR, principalement en design UI/UX pour des plateformes web et mobiles. Les deux clients ayant laissé un avis ont travaillé avec des budgets inférieurs à 10 000 EUR.
This summary is based on verified projects and reviews.
Most common project size
Reviews of U1CORE
4 reviews shown, 2 of them confirmed by their author. Only the latter count towards the score.
U1CORE's work helped the client increase inquiries and lead generation, improve customer confidence, and better position themselves in the market. The team was very organized, delivered on time, and had a structured approach with a clear timeline. They also provided regular progress updates.
How to rate your own company and why this is not easy, as it seems! Fantastic job guys! 🔥 Amazing experience! I was a client of my own team with some requests with my other business. To be honest, I was the craziest client ever for them, because as a founder I would like to make experience of my company in the top level! So, they made some issues during briefing, but after that made fantastic job with website design and then development. We working on marketing with U1CORE and they are doing great, really great! That’s fantastic!
The team was so friendly, well organized, and very personable to work with. Feedback was always taken well and implemented very quickly! I've now gone back to them for website designs twice and will be going back again - without a doubt!
What stood out most was their budget transparency and structured approach. They clearly separated essential features from optional ones and stayed within the agreed scope throughout the project. Any additional requests were discussed openly with clear cost implications. Communication was smooth and organized: weekly meetings were productive, decisions were documented, and both our marketing and technical teams felt fully involved.
Portfolio
Services offered
Our packages
Custom Software Development
UX/UI DesignWe don’t just build websites — we build complex digital ecosystems. Our approach is based exclusively on custom code, ensuring unlimited scalability, the highest level of security, and a level of uniqueness that is impossible to achieve with builders or ready-made CMS.
Essentiel
3 000 €
Fixed Requirements MVP Development Strict Budgets
Pro
50 €
Hour rate Evolving Projects Changing Requirements
Expert
3 000 €/mois
Subscription Long-term Support Strategic Partnersh
Complex Digital Product Experience
UX/UI DesignWe design digital experiences built to cut through the noise and command attention. Our goal is to maximize your brand’s visibility and ensure you dominate the landscape, leaving competitors in the shadows.
Expert
4 990 €
Future UNICORNS MVP Development Custom Services