Overview

About U1CORE

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.

What clients say

Review Analytics of U1CORE

Every review is verified through Goodfirms before it's published.

5.040 Verified Reviews
Quality5.0
Schedule & Timing5.0
Communication5.0
Overall5.0
Review Summary
Summarized from 40 verified reviews · Updated August 2026
Clients consistently praise U1CORE for fast delivery, responsive communication, and design quality that balances creativity with functionality. The team is noted for understanding client needs deeply, offering proactive problem-solving, and maintaining professionalism throughout projects. Work spans Web3, enterprise apps, and digital platforms, with clients highlighting their ability to translate complex requirements into intuitive user experiences. Reasonable pricing and a collaborative, partnership-oriented approach are recurring strengths.
✦ AI-generated summary. May not reflect every review.
Detailed Reviews of U1CORE
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What reviewers mention most

Baptiste Garcin
Baptiste Garcin, Founder at Tentimes at TenTimesVerified Review
Posted on Nov 15, 2024

Overall, a very great experience.

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
IT Services

We recruited U1CORE to help Chemical Signs, Corp. improve its cybersecurity infrastructure, notably in protecting the unique Jet and FlashTM Imprint Lithography (J-FILTM) technology. Our explicit goal was to secure the best possible level of protection for our intellectual property and sensitive data.

Lazaro Nascimento
Lazaro Nascimento, Software Engineer at Chain InsightsVerified Review
Posted on Nov 8, 2024

Lightning fast, highly skilled, and brings flawless creativity to every project.

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web DesignWeb3

U1CORE consistently delivers high quality work at impressive speed, blending technical expertise with a sharp creative vision. Esp, Taras's proactive in solving design challenges, ability to understand the business logic, eye for UI/UX is much appreciated. Collaborating with U1CORE has elevated each project and made the entire process smoother and more inspiring.

Anonymous
AnonymousVerified Review
Posted on Nov 7, 2024

Great company to work with!

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web Design

U1CORE took the time to deeply understand our SaaS, creating insightful visualizations and Figma designs that captured the core relationships and objects within our platform. U1CORE's dedication to mastering the complexities of our software allowed us to streamline and enhance the user experience significantly. U1CORE's commitment to understanding our app from the ground up helped us simplify its structure and increase overall usability. They worked effectively across our team—engaging with both back-end and front-end developers—and was instrumental in making this project a success. I highly recommend U1CORE for their expertise, thoroughness, and collaborative spirit.

Anonymous
AnonymousVerified Review
Posted on Nov 7, 2024

Super talented, professional, prompt, and very fair rates!

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
App Designing (UI/UX)

Working with Taras at U1Core has been amazing. He takes your passion and makes it his own. I was worried going into this that I would have too many pivots and new directions, but he constantly takes them in stride. The difference with him is that he learns from each and every piece of feedback and utilizes it on each new version. His rates are more than fair, his talent is incredible and he is happy to take your idea and just "run with it". Don't hesitate, this team is a diamond in the rough and you will not be disappointed.

Oleksandr Skyba
Oleksandr Skyba, CEO $ Co-founderVerified Review
Posted on Nov 4, 2024

That was amazing cooperation on every stage of the project flow!

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
App Designing (UI/UX)Web DesignWeb3

U1CORE are the best partners\contractors you can imagine to have upon your business adventure! The communication was on a daily basis and very smooth, all the iterations I had were implemented the next day! Design team have only middle+ and senior designers who understand my goals and my vision for 110%! Truly an amazing experience!

Kamil Wojciechowski
Kamil Wojciechowski, Founder at Camdora Software LTDVerified Review
Posted on Nov 4, 2024

The U1Core team quickly, professionally and on time completed our Chain Insights project.

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web Design

I am delighted to cooperate with the U1Core team and personally with their CEO, Taras. I received several ideas and design concepts for Chain Insights. I got the first draft of the design very quickly. The result of the finished UI/UX exceeded our expectations. Upon completion of the project, the U1Core team gave us the documentation and Figma design file. We were satisfied and will continue to cooperate on other projects.

Barry C McCarthy
Barry C McCarthy, Chief Executive Officer at Deluxe at DeluxeVerified Review
Posted on Oct 28, 2024

Delighted to express my satisfaction, appreciation for the exceptional services provided by U1CORE.

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web Design

For one of the initiatives we are funding, we have to create a web application. Our goal was to develop a cutting-edge, mobile-friendly web betting application with an intuitive user interface. Rather than being directly involved, my function was more of an overseer. I handed the agency over to the group we were investing in after our first discussions and negotiations over the cost, schedule, and other pertinent issues. After that, I just attended the most crucial calls and monitored the status of the project and the updates U1CORE was giving. First, we spoke with an U1CORE product manager about the idea. The team worked with a UI/UX designer and a product designer until the project was completed after I brought them on board. It took roughly three months to complete the job from beginning to end

Bohdan Lyshchenko
Bohdan Lyshchenko, Founder & CEO at ClipSwiftVerified Review
Posted on Oct 15, 2024

Design hat exceeded our expectations

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web Design

Our overall experience with U1Core was truly outstanding. From the start, their professionalism and attention to detail were evident. CEO Taras and his team demonstrated exceptional creativity, delivering innovative design solutions that perfectly aligned with ClipSwift’s brand vision. U1Core's approach was highly collaborative—they listened carefully to our needs, provided insightful suggestions, and ensured the final designs were not only visually stunning but also practical for our business goals. Their deep expertise in UI/UX design was a game changer, helping us not just with the aesthetics but also with the functionality and user experience of our platforms. The process was smooth and transparent, with clear communication at every stage. U1Core met every deadline without compromising quality, and their flexibility allowed us to make adjustments along the way.

Finn Dollimore
Finn Dollimore, CEO at Finn Dollimore freelancingVerified Review
Posted on Sep 18, 2024

Taras was super helpful at all stages of the project, he produced an amazing design!

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web Design

Taras was thoughtful and careful about his design. He worked directly with the client to resolve any feedback quickly, and most importantly he delivered on an amazing design. Thank you Taras for being a pleasure to work with.

Arman Stepanyan
Arman Stepanyan, Blockchain / Web3 / AI Enthusiast at ArmstepVerified Review
Posted on Sep 10, 2024

Amazing cooperation, in time delivery, nice communication!

Overall rating5.0
Quality5.0
Communication5.0
Schedule & Timing5.0
Web DesignWeb3

It was really amazing to trust Taras and his team to develop full UI/UX design for Qredit. As a final deliverable I got over 5 concepts of the possible design that I could use, fully described process and the logic reviewed by myself, and after that full UI with its kit to make it easy for the developers to develop full web application. I also trusted them with the pitch deck design and my investors were very impressed. It is hard to tell what was more amazing, because in all aspects service was on a highest level, but for me the most important aspects are attentiveness to the client and high-quality deliverables. I still cooperate with them in my other projects and know for sure whom to entrust any product's UI/UX design. Thanks a lot, Taras!

Focus

Service Focus of U1CORE

How the team's effort is distributed across services.

100%

Industries Focus

100%

Client Focus

Small Business50%
Medium Business50%

The Positioning

AI Tools & Purpose

The stack the team uses to move faster.

Claude
Analyzing complex data & generating insights
Grammarly
Proofreading copy & client-facing content
Cursor
AI-assisted coding & faster development
Lovable
Rapid UI prototyping & front-end generation
Gemini
Research, summarization & content ideation
Selected Work

Client Portfolio of U1CORE

Where their work concentrates - by industry, budget, and timeline.

Project Industry

Healthcare5%
Education4%
Consumer1%
Advertising & Marketing4%
Gambling1%
Other11%
Fintech20%
Real Estate9%
Travel4%
Business Services3%
Social1%
Other Industries9%
eCommerce17%
Transportation & Logistics3%
Cryptocurrency1%
Telecommunications2%
Banking1%
Media1%
Oil & Energy1%
Major industry focus
Fintech

Project Cost

$0 to $1000075%
$10001 to $5000024%
$50001 to $1000001%
Common project cost
$0 to $10000

Project Timeline

1 to 25 Weeks98%
26 to 50 Weeks2%
Typical timeline
1 to 25 Weeks

Clients: 26

Near ProtocolWormholeYieldnestOneClickSolar BlockchainTDXKredobankJumpDefycaSellifyAIGathering IsraelIQONToki FinanceRanktrackerKhalifa GroupDataOXVictus GlobalNexon - Web3ESGCXPerpetualsInfoquestElectrascapeDreamCoachMatchLifeDataMilanovaVOXR AI

Portfolios: 92

Where we are

Locations (1)

Offices where U1CORE operates.

Headquarter
United Kingdom

United Kingdom

Eagle House
London, England SW19 5EF
+44 7723 615536