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THEY.dev

Verified company

Custom Software Development, Design & Consulting | Web and mobile applications for business

Greater London, England (GB)
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Trusted by

Selected clients

LLocalgiving LTDHHello Hosty LTDPParliamentary Research ServiceEEnforcio.io LTDMM01+1 more

Capabilities

What they do, who they serve, and the stack they build on.

Technologies

AngularAWSJavaNode.jsReactReact NativeTypeScriptDockerMySQLPostgreSQLVueWordPress

Selected work

A snapshot of recent projects and outcomes.

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What clients say

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THEY.dev is known for

high client satisfactiondiverse technology stackagile project managementstrong client relationships

Clients consistently praise THEY.dev for their professionalism, transparency, and dedication to delivering quality solutions. They are noted for their agile project management, which ensures timely delivery and clear communication throughout the development process. Clients also commend the team for their technical expertise and ability to provide strategic advice, which enhances the overall project outcomes.

Client testimonials

“TH-EY was able to provide all the features required for the output that the client wanted. The communication was made through Slack, Jira, Miro. The team was very easy to work with, quick, and efficient.”

A

August Cayzer

CEO & Co-Founder, Common Surface

“Every member of the team was highly experienced and was able to find elegant solutions. Now, stakeholders' internal processes are faster and more efficient. Direct communication with the programmers has fostered a positive partnership.”

A

Anick Akbar

Founder, Pixable

“TH-EY has delivered a user-friendly, visually appealing, and fully functional e-commerce website, which received several positive user feedback. The vendor has showcased high professionalism, industry expertise, and efficient project management. They've also provided excellent guidance and advice.”

M

Michael Zaniewicz

Project Manager, Advertising Agency

“THEY's platform is in beta testing. Nevertheless, the client still claimed that their partnership went very smoothly. The vendor efficiently built the product's features while also providing advice and guidance on best practices during initial discussions.”

J

James Collie

Founder & CEO, Onboard

“The platform has been successful, featuring minimal bugs and meeting the expectations of the internal team. TH-EY communicates daily with the client to ensure a smooth workflow. The team provides quality results in a timely manner.”

H

Harri Siekkinen

CEO & Founder, M01

Reviews

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THEY.dev is a London-based software development agency specializing in custom web and mobile applications for startups and established businesses alike. Since its founding in 2017, THEY.dev has served over 55 businesses, earning a perfect 5/5 rating from 31 reviews on a leading review platform.

  • Client Satisfaction: THEY.dev boasts a stellar 5/5 rating from 31 verified client reviews, highlighting their commitment to quality and client success.
  • Comprehensive Services: From MVP development to ongoing support, THEY.dev provides a full suite of services, ensuring seamless project execution and long-term client relationships.
  • Notable Clients: They have partnered with companies like Localgiving LTD, Hello Hosty LTD, and Parliamentary Research Service, showcasing their ability to handle diverse industry needs.
  • Technological Expertise: THEY.dev leverages a wide range of technologies including AWS, Angular, Node.js, and React, ensuring robust and scalable solutions.
  • Agile Approach: By maintaining open communication and delivering results in short, iterative cycles, THEY.dev ensures projects are aligned with client goals and expectations.

Their client-centric approach, combined with technical expertise and a transparent workflow, makes THEY.dev a trusted partner for businesses looking to leverage technology for growth.

Locations

Hatton Garden, London EC1N, UK

Headquarters

Rates & ideal client

What this firm typically charges and who they're built for.

Min project budget

$5,000+

Hourly rate

$25 – $49/hr

Team size

11–50

Social media

LinkedInXFacebookInstagram

Industry Recognition

Clutch Award BadgeFeatured in ClutchFeatured in Disrupt MagazineFeatured in GoodFirmsFeatured in TechBehemotsFeatured in: Business Insider