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Custom Software Development, Design & Consulting

Who are THEY?
Since our inception in 2017, we've grown into a remote team of experts, spanning from the UK to Poland. We specialise in delivering tailor-made web and mobile applications, with a keen focus on collaboration and direct client-developer interaction.
Our key strength is a consultancy approach to every client.
We've had the privilege of assisting over 55 businesses - from young startups to well-established companies, helping them navigate the technological landscape and achieve their goals. Our success lies in our ability to match each project's unique requirements with the right expertise

  • Min project size
    $5,000+
  • Hourly rate
    $25 - $49 / hr
  • Employees
    10 - 49
  • Locations
    London, England
  • Year founded
    Founded 2017
  • Languages
  • Timezones

2 Languages that we service

  • English
  • Polish

5 Timezones that we service

GMT
Greenwich Mean Time (GMT)
CET
Central European Time (CET)
UTC
Universal Coordinated Time (UTC)
EET
Eastern European Time (EET)
ART
(Arabic) Egypt Standard Time (ART)

2 Locations

  • London , England
  • Kraków , Poland

Select Focus Area
Application Platforms
Amazon Application Development Framework
85%
Azure Platform
10%
Digital and IT Strategy Consulting Focus
IT Operations Management Consulting
50%
Frameworks and CMS
Spring MVC
20%
Other frameworks and CMS
10%
Programming & Scripting
Java
30%
Typescript
15%
SQL
10%
HTML5
5%
Python
5%
Redux
5%
XML
5%
User Experience Focus
Industries
Business services
10%
Consumer products & services
10%
Education
10%
Financial services
10%
GPS, Navigation & GIS
10%
Gambling
10%
Medical
10%
Other industries
10%
Real estate
10%
eCommerce
10%
Clients
Small Business (<$10M)
85%
Midmarket ($10M - $1B)
15%

Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate $25 - $49 /hr
Rating for cost 4.9 /5

What Clients Have Said

THEY.dev offers competitive pricing and strong value for cost, with clients noting their budget-friendly services and effective project management. Projects typically involve 2-5 team members, delivering on time and within budget, enhancing overall client satisfaction.

This summary is based on verified Clutch reviews.

Most Common Project Size

< $10,000 based on 21 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

THEY.dev Review Insights

Overall Review Rating

5.0
  • Quality 4.9
  • Schedule 4.9
  • Cost 4.9
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Effective Project Management

    Reviews highlight THEY.dev's effective project management, often characterized by timely deliveries and structured workflows. Clients value their use of tools like Jira and Trello for task management and their ability to keep projects on track.

  • Value for Money

    Many clients choose THEY.dev for their competitive pricing and the value they deliver. The company is often seen as providing good value for cost, making them an attractive option for businesses with budget constraints.

  • Room for Improvement in Estimation

    While generally positive, some reviews suggest THEY.dev could improve their initial budget estimations. A few clients mentioned projects going over budget, indicating a potential area for refinement in cost forecasting.

  • Commitment to Client Success

    THEY.dev is committed to client success, often going beyond the agreed scope to suggest improvements and ensure the best possible outcomes. Clients appreciate their dedication to understanding and solving business challenges.

  • Flexible and Responsive Team

    The team at THEY.dev is noted for their flexibility and responsiveness. Clients appreciate their ability to quickly adapt to changing project scopes and needs, as well as their prompt communication through virtual meetings, Slack, and email.

  • Strong Client Communication

    THEY.dev maintains strong communication with clients, ensuring alignment and progress through regular meetings and updates. This approach has been crucial for successful collaborations, as noted by numerous clients.

THEY.dev Reviews

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Industry
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Custom Software Development for E-Commerce Retailer

  • Custom Software Development
  • Less than $10,000
  • Jan. - Mar. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"It was a very efficient and high-impact return for us."

Jul 15, 2024
CEO, E-Commerce Retailer
Rebecca Morter
Verified
  • eCommerce
  • United Kingdom
  • 1-10 Employees
  • Online Review
  • Verified

An e-commerce retailer hired TH-EY for custom software development services. The team was responsible for developing a login portal for private client access and a small web platform for client management. 

IT Strategy Consulting for Travel Technology Company

  • IT Strategy Consulting
  • Confidential
  • April 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They were very responsive and timely."

Apr 15, 2024
Founder, Travel Technology Company
Matthew John Quinn
Verified
  • Other industries
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

A travel technology firm hired TH-EY to develop a go-to-market strategy. The team also developed an IT strategy that would help build the most operationally efficient technology stack for the client's business.

Web App UI/UX Design for Mental Health Platform

  • IT Strategy Consulting UX/UI Design Web Design
  • UX Strategy
  • Less than $10,000
  • July - Dec. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"I was impressed with how much they cared about our organization's vision."

Feb 29, 2024
Founder, Mental Health Platform
Anonymous
  • Other industries
  • London, England
  • 11-50 Employees
  • Online Review

TH-EY designed a web app's prototype for a mental health platform. TH-EY was responsible for the UI/UX design, creating wireframes and mock-ups of key user journeys, and building a clickable prototype in Figma.

Web App Dev & Design for Dormant Account Filing Platform

  • API Development UX/UI Design Web Development
  • Amazon Application Development Framework
    +5
  • Confidential
  • Feb. - Apr. 2021
5.0
Quality
5.0
Schedule
4.0
Cost
4.0
Willing to Refer
5.0

"We liked their cooperation and good listening skills."

Feb 23, 2024
Director, Dormant Account Filing Platform
Anonymous
Verified
  • Business services
  • United Kingdom
  • 1-10 Employees
  • Online Review
  • Verified

TH-EY developed a web application for a dormant account filing platform. The team implemented the required integrations like House API, Stripe, email sending, and UX design.

UI/UX Design & Web Development for MedTech Company

  • UX/UI Design Web Development
  • Amazon Application Development Framework
    +2
  • Confidential
  • May 2022 - Ongoing
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"Their highly capable founders have an interest and understanding of our business needs."

Feb 21, 2024
CEO, MedTech Company
Anonymous
Verified
  • Medical
  • Fairfield, Connecticut
  • 1-10 Employees
  • Online Review
  • Verified

A medtech company has hired TH-EY to design and implement a cloud-based image processing and management system. The team has designed the UI/UX and built the MVP based on a proof of concept. 

Desktop App Dev for Transportation Company

  • Custom Software Development Other Application Development
  • Typescript
    +1
  • Confidential
  • July 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They fully understood our challenges and presented a solution in a clear and precise manner from the outset."

Feb 21, 2024
Manager, Transportation Company
Anonymous
Verified
  • Other industries
  • United Kingdom
  • 51-200 Employees
  • Online Review
  • Verified

Following a research nd planning phase, TH-EY has developed a Windows and macOS desktop app for a transportation company. They've also built an internal app for the main product's pre-configuration management.

Web Development for Bloggers Platform

  • API Development Custom Software Development Web Development
  • Less than $10,000
  • Jan. - May 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

''Smart people.''

Sep 20, 2023
CTO, gotmy - GOT MY IDOL INC
Faustino Castro
Verified
  • Arts, entertainment & music
  • Miami, Florida
  • 1-10 Employees
  • Online Review
  • Verified

A bloggers platform hired TH-EY for web development. The team integrated authentication processes, digital wallet functionality, and Partner APIs into the client's landing page to create a new site version.

E-Commerce Site Dev for Advertising Agency

  • Custom Software Development E-Commerce Development Web Design Web Development
  • Confidential
  • July 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their team is professional, efficient, and easy to work with."

Mar 23, 2023
Project Manager, Advertising Agency
Michael Zaniewicz
  • Advertising & marketing
  • Poland
  • 11-50 Employees
  • Online Review

TH-EY has developed an e-commerce website for an advertising agency. The team has designed and built the website from scratch.

Mobile App Dev for Restaurant Company

  • Mobile App Development
  • $10,000 to $49,999
  • Apr. - Sep. 2021
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We had direct access to multiple team members, and they were always transparent about timelines and costs."

May 20, 2022
Co-Founder, Cappaciti Technology
Leanne Kehoe
  • Other industries
  • United Kingdom
  • 1-10 Employees
  • Online Review

TH-EY developed a restaurant company’s mobile app. They used the client’s wireframes to build the solution using Java, Spring Framework, React Native, MySQL, and AWS.

Showing 21-30 of 31 Reviews

Packages we offer:

UX Services

Improve your app's key metrics with our UX services. If you don't measure KPIs or don't know what to measure, choose Small Tier. 2nd tier is best for apps fighting to get more users. Choose Large Tier if your app has users signing up, but you want to improve retention.

Small

Start measuring, setup analytics and KPIs

$380 /total
  • Web analytics setup
  • Mobile analytics setup
  • KPIs definition
  • KPIs dashboard setup
  • 1 week delivery

Large

Improve user retention with advanced UX Audit

$2,689 /total
  • Web analytics setup
  • Mobile analytics setup
  • KPIs definition
  • KPIs dashboard setup
  • Landing page UX audit
  • 3 week delivery
Features

Small

$380

/total

Medium

$888

/total

Large

$2,689

/total

Web analytics setup

Mobile analytics setup

KPIs definition

KPIs dashboard setup

Landing page UX audit

Signup process UX audit

App Store/Google Play analysis (when applicable))

Introductory workshop

UX audit of key user flows

Report with prioritised recommendations to improve KPIs

Small

$380

/total

Web analytics setup

Mobile analytics setup

KPIs definition

KPIs dashboard setup

Landing page UX audit

Signup process UX audit

App Store/Google Play analysis (when applicable))

Introductory workshop

UX audit of key user flows

Report with prioritised recommendations to improve KPIs

Medium

$888

/total

Web analytics setup

Mobile analytics setup

KPIs definition

KPIs dashboard setup

Landing page UX audit

Signup process UX audit

App Store/Google Play analysis (when applicable))

Introductory workshop

UX audit of key user flows

Report with prioritised recommendations to improve KPIs

Large

$2,689

/total

Web analytics setup

Mobile analytics setup

KPIs definition

KPIs dashboard setup

Landing page UX audit

Signup process UX audit

App Store/Google Play analysis (when applicable))

Introductory workshop

UX audit of key user flows

Report with prioritised recommendations to improve KPIs

Our Story

Two developers left corporate in 2017 because they believed software gets better when clients talk directly to the people building it. No layers, no translators. That's still how we work - a remote team of 25, where developers lead projects and own client relationships. Eight years later, the longest client relationship we have is still running.

What Sets Us Apart

No middlemen

There are no project managers sitting between you and the team. The developer on your project handles communication, owns the timeline, and is your main point of contact throughout.

A team that sticks around

26 of our projects have run for 2 or more years. Clients don't tend to leave because the people they're working with feel like an extension of their own team, not a rotating roster of contractors.

We advise, we don't just build

Every developer is expected to understand your business goals, not just the technical brief. That means you get someone who'll question the approach, flag a better path, and think about what actually moves your business - not just close the ticket.

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More
Verified Client Reviews
28
Overall Review Rating
5
Source
Clutch
Last Updated
January 22, 2026

Business Entity

Business Entity Name TH-EY S&D Ltd
Source Companies House
Jurisdiction of Formation United Kingdom
Date of Formation October 26, 2017
Status Active
Last Updated April 4, 2024
ID 11033177

Credit Report Results

International Credit Risk Assessment Very Low Risk
Source Creditsafe
Last Updated April 4, 2024
Learn More About The Clutch Verification Process

Locations (2)

3 Wingfield Road LondonEngland E17 9NN

2 - 5

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