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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%
Certified in:
Custom Software Development UX/UI Design

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 good value for cost, with many clients noting that their pricing fits budgets. Specific project costs weren't disclosed, but clients praised the company's ability to deliver high-quality work on time and within budget, enhancing overall 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

  • Strong Project Management and Timely Delivery

    Many clients praised THEY.dev for effective project management, timely deliveries, and responsiveness. The team often used agile methodologies, maintained clear communication through platforms like Slack and Jira, and handled updates and feedback efficiently.

  • Expertise in Custom Software Development

    Multiple reviews highlight THEY.dev's proficiency in developing custom web and software applications tailored to specific business needs. Clients from diverse industries like financial services, SaaS, and healthcare appreciated the personalized solutions that addressed unique challenges such as investment management processes, job board functionalities, and e-commerce features.

  • Areas for Improvement in Design Creativity

    While generally satisfied, one review suggested that THEY.dev could enhance their design creativity. The designs were functional but could have been more imaginative, indicating room for improvement in this area.

  • Excellent Communication and Collaboration

    Clients consistently appreciated THEY.dev's communication skills, noting their responsiveness and ability to incorporate feedback. They used various communication tools like Slack, email, and virtual meetings to maintain a seamless workflow.

  • Effective Problem-Solving and Technical Expertise

    THEY.dev was noted for their ability to understand complex technical requirements and provide elegant solutions. Their technical expertise and problem-solving skills were appreciated across various projects.

  • Flexibility and Adaptability

    THEY.dev demonstrated flexibility and adaptability, tailoring team compositions and project scopes to meet client needs and budget constraints. This often led to efficient and cost-effective solutions.

THEY.dev Reviews

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Web Dashboard for Sustainability Data Analytics Company

  • Custom Software Development
  • $10,000 to $49,999
  • Aug. 2019 - Mar. 2020
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Everything was grand."

Aug 4, 2020
Founder, Susterra Ltd
James Dent
Verified
  • Energy & natural resources
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

TH-EY developed a web-based dashboard for a sustainability data analytics company. Working Dash, the team built both the front- and backend of the system.

Showing 31-31 of 31 Reviews

Premier Verified means Clutch independently confirmed THEY.dev is a legally registered business,
financially sound (Creditsafe: Very Low Risk), and backed by 28 verified client reviews averaging 5.0 stars.

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
Jurisdiction of Formation United Kingdom, London
Date of Formation October 26, 2017
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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