Scan the leading custom software development companies in the UK that build bespoke solutions and offer specialized software services for various verticals. Compare their portfolios, reviews, expertise, budget, team size and more to find the right team for your next project.
We Vetted The Best United Kingdom Software Development Firms For You
9 Companies-Rankings updated: September 06, 2026
Every agency featured on DesignRush is vetted for expertise and client satisfaction to support your decision-making. Some listings may be sponsored.
VerifiedVerified by the DesignRush team for authenticity and credibility.
ELEKS, a trusted partner for guaranteed software engineering excellence, quality, and transparency.
ELEKS builds custom enterprise software across fintech, healthcare, energy, and logistics, with 1,000+ projects delivered over 30 years. It serves Fortune 500 companies and names like DPD and Drax. The software development firm is best for mid-to-large enterprises needing complex software development...
Top Services:
Software Development
Mobile App Development
Cloud Consulting
Cybersecurity
AI Development
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Location
London, United Kingdom
Number of Employees
1000 & Up
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
12 Projects Listed
ELEKS Services
Software Development
Mobile App Development
Cloud Consulting
Cybersecurity
AI Development
ERP Consulting
CRM Consulting
Product Design
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aramex
TAIT
Acino
GRTGaz
Autodesk
Blackboard
Havas
ESET
Eagle
teleologica
Data sourced from the agency's DesignRush profile
ELEKS Reviews & Testimonials
John Armstrong Founder, CEO & CTO at Civex
5.0★
Software Development Review from John Armstrong
ELEKS was able to take our vision and help us deliver an app that empowers retail shareholders to make their voices heard. They’ve brought a depth and breadth of technical expertise and user experience design to challenge us on our assumptions on how people would want to interact with the app. From a mobile development perspective, we wanted to go to market with both an Android and an iPhone simultaneously.
Mark Battcock Digital Communication Director at Imerys
5.0★
Software Development Review from Mark Battcock
We are very happy with our ELEKS partnership; the dedication of the team is exceptional. We would certainly recommend ELEKS and would be happy to work with them again. In fact, they continue to be our partner for the 2nd phase of the CDX project to add even more customer services to the website.
Huntly Christie CEO at Christie Lites
5.0★
Software Development Review from Huntly Christie
What impressed me about ELEKS is the culture. There is a very strong culture of discipline and performance, and software is a profession where discipline is very important. Good software development can only happen with a strong work ethic, and I think the ELEKS team really understands that.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
VerifiedVerified by the DesignRush team for authenticity and credibility.
Full-Cycle IoT and Software Development company
We deliver cutting-edge, scalable, and fully functional IoT hardware and software products and ecosystems that help clients achieve their specific objectives...
Top Services:
IoT
Software Development
Mobile App Development
AI Development
Big Data Analytics
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Location
London, United Kingdom
Number of Employees
500 - 999
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
24 Projects Listed
Yalantis Services
IoT
Software Development
Mobile App Development
AI Development
Big Data Analytics
IT Services
Cybersecurity
Staff Augmentation
Cloud Consulting
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
RAKwireless
Toyota Tsusho
KPMG
Healthfully
Orbis Systems
Lifeworks
Scholz Databank
123 Sourcing
Truhoo
Data sourced from the agency's DesignRush profile
Yalantis Reviews & Testimonials
Sergei Lishchenko Director of Digital Experience and Innovation at Orbis System
5.0★
Fintech Review from Sergei Lishchenko
The exception team the client collaborated with brought in fresh ideas and innovative technologies previously unfamiliar to the client. For example, with Yalantis' guidance, the client's developers explore the Go language. The primary reason the client chose Yalantis is its strong organizational and project management skills. It's not just about the developers; Yalantis provides a comprehensive support framework, ensuring that a project manager is consistently present. (Verified via email)
Jason Jung Senior engineering manager at Zillow
5.0★
Software Development Review from Jason Jung
Yalantis functions as an integral scrum team, supporting the development teams of a real estate firm. It created renovation project management tools that encompass a web app, a mobile app, and a backend system. Thanks to Yalantis, the client expanded development capabilities and achieved key short-term goals. Its quick integration was pivotal in launching various projects. Beyond delivering top-notch work, Yalantis emphasizes a culture that prioritizes the customer's needs. (Verified via email)
Roy D Partner at RAKwireless
5.0★
Outsourcing Review from Roy D
An IoT manufacturer teamed up with Yalantis to craft an application, enabling users to manage their devices more efficiently. Utilizing Node.js and basing the architecture on Circulus, Yalantis delivered commendable outcomes. It is responsive to any development challenges, offering swift resolutions. The client appreciates Yalantis' proactive stance, impressive technical expertise, and practical solution suggestions. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
dotcode is a full-cycle software development company. At dotcode, we know how its crucial to understand the users needs when building a successful product. Our team combines amazing minds in Front-End, Back-End, Web and Mobile Development, Quality Assurance, Business Analysis, and UI/UX Design...
Top Services:
Software Development
Mobile App Development
Web Development
Web Design
Product Design
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Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$35/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
21 Projects Listed
dotcode Services
Software Development
Mobile App Development
Web Development
Web Design
Product Design
AI Development
UI/UX Design
DevOps Consulting
Cloud Consulting
Digital Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Thrive
Venue Report
Ply
FlyJets
Prove
Lynked
Provoso
Bedrock
Educational Copilot
Heritage Humanities
Data sourced from the agency's DesignRush profile
dotcode Reviews & Testimonials
Khang Pham founder at TxK Gaming Studios GmbH
5.0★
Mobile App Development Review from Khang Pham
Choosing dotcode was one of the best decisions we made for our business. Their team's ability to understand our vision and turn it into reality was remarkable. Not only did they provide app development, but they also ensured our project was completed quickly and successfully. Their post-payment work format eliminated any risks on our end, making the collaboration seamless and stress-free. We couldn't be happier with the result
Ben Goodfellow Managing Director at Bristol Technology Group
5.0★
Web Development Review from Ben Goodfellow
Dotcode exceeded our expectations in every way possible. Their commitment to meeting deadlines and budgets was evident from the start, and they delivered a flawless end product. The transparency they maintained throughout the project gave us peace of mind, knowing exactly where things stood at all times. If you're looking for a reliable partner for your design and development needs, look no further than dotcode
Sofia Diaz Brand & Creative Strategist | at Known
5.0★
Product Design Review from Sofia Diaz
I had an idea and vision, which intent helped me bring to life. We required a platform that would be usable on different types of mobile and desktop devices, as well as work on different browsers.We went through the process of designing the product and building an MVP. Their UX designer evaluated the mockups I gave them. Then, they gave me some suggestions on how to improve the product and provided a UI designer, who built the interfaces.From there, intent handled the following stages of product development. We went through several iterations based on user feedback for the MVP, and every feature was QA-tested before release. Now, we continue to improve the product on a monthly basis.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We work with Startups and Businesses with enterprising new ideas. Delivering Premium Mobile app development and AI Powered Software solutions. Our agile development model ensures speed of delivery and scalability, while our AI-powered solutions enhance functionality and user experience...
Top Services:
Mobile App Development
AI Development
Staff Augmentation
Software Development
Wearables
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Location
Chichester, United Kingdom
Number of Employees
100 - 249
Average Hourly Rate
$25/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
86 Projects Listed
WDI Services
Mobile App Development
AI Development
Staff Augmentation
Software Development
Wearables
IoT
Web Development
UI/UX Design
DevOps Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
David Costlow
Dale Foster
Rohan Raut
Alex Scalia
Sherina Rathore
Paul Davys
Zachary Lynch
Anand Mehrotra - Sattva Connect
Vikas Dixit - Angel Broking
Ruchika Karla - Accessibily
Data sourced from the agency's DesignRush profile
WDI Reviews & Testimonials
Konrad Korobowicz Founding Partner at Anava Capital
5.0★
Mobile App Development Review from Konrad Korobowicz
Thanks to Wdi's expertise and dedication, the music app achieved a 400% increase in downloads within the first month of launch, demonstrating significant progress and success.
Abdelrahman ALMULLA Co-Founder at techArabia
5.0★
Mobile App Development Review from Abdelrahman ALMULLA
wdi took the vision we had and turned it into something even better. They built this incredibly detailed app that lets users filter hotels based on things like airport transfers, car services, or other specific amenities. Travelers can also quickly spot deals or limited-time offers with just a glance.One of the coolest parts is how the app keeps guests updated when theyre checked into a hotel - whether it's on-site events or nearby activities, theyll get notifications straight to their phone. The feedback system they added is a game-changer. Guests can send questions or share thoughts right from their rooms, and they get notified the moment theres a response.
Aaron Birkby CEO & Co-Founder at Tribe Global Ventures
5.0★
Mobile App Development Review from Aaron Birkby
We had many very clear outcomes and timelines based on our needs that were identified before the project began. They provided regular updates and progress reports via email and virtual meetings throughout the project. Typically in two-week sprints.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Coderus - Building Smart Code Solutions for the Future
Coderus is a leading software and app development company based in the UK, and we provide services to start-ups, medium businesses, and large blue-chip enterprises globally...
Top Services:
Mobile App Development
IoT
Software Development
Software Testing
Design Services
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Location
Martlesham, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$99/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
Coderus Services
Mobile App Development
IoT
Software Development
Software Testing
Design Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
INEOS Team UK (America's Cup)
Bowers & Wilkins
ELGA Veolia
Land Rover BAR
Frontier Silicon
Data sourced from the agency's DesignRush profile
Coderus Reviews & Testimonials
Petra Napthine Review from Google
5.0★
Petra Napthine's Review Sourced from Google
I completed my work experience from the 8th - 12th of July at Coderus. I learnt lots during the week and everyone was very helpful and friendly. I'd recommend this to anyone interested in app development as its a great way to learn about the industry.
Emil Aby Review from Google
5.0★
Emil Aby's Review Sourced from Google
I attended work experience at Coderus from 1st-5th July. It was a great experience, i particularly enjoyed creating my own app. Would definitely recommend.
Daniel Healy Review from Google
5.0★
Daniel Healy's Review Sourced from Google
Coderus are an excellent team. I've worked with them on 5 projects now, all of which were clearly laid out, tracked and delivered, from start to finish.They're always happy to work to our expectations, cater to the specific needs of the business, and provide training on the tools they create upon delivery.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Infinity Technologies, headquartered in London, specializes in creating global R&D hubs to help businesses achieve their goals. Promoting fully remote teams and a lean approach, we eliminate unnecessary office costs, sales, marketing expenses, and overheads for our customers. Our innovative fractal model...
Top Services:
VR/AR
UI/UX Design
Mobile App Development
Software Development
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Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$39/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
8 Projects Listed
Infinity Technologies Services
VR/AR
UI/UX Design
Mobile App Development
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Algosoup is a London-based software development company that provides AI-native, forward-deployed engineering services by embedding software engineers into client teams. It supports startups, scaleups, enterprises, and agencies with rapid MVP development, product engineering, AI integration, legacy...
Top Services:
AI Development
Software Development
Mobile App Development
Software Testing
eCommerce Development
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Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$300/hr
Minimal Budget
$25,000 - $50,000
Algosoup Services
AI Development
Software Development
Mobile App Development
Software Testing
eCommerce Development
VR/AR
Blockchain
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
At Incepteo, we dedicate significant time to discovery, strategy, and UX/Tech design, instilling confidence in every project we undertake. Through meticulous planning and innovative design, we ensure that each endeavor is executed with precision and meets the highest standards of quality and functionality...
Top Services:
Web Design
Software Development
Web Development
Mobile App Development
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Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$25/hr
Minimal Budget
$25,000 - $50,000
Incepteo Services
Web Design
Software Development
Web Development
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Creating Effective Digital Solutions For Complex Challenges
We are Zentix Soft, a UK-founded IT company with offices in Ukraine and Latvia. Our team specializes in full-cycle web development, mobile app development, and custom software solutions. We operate in three models: in-house, outsourcing, and outstaffing, helping clients build efficient and scalable...
Top Services:
Web Design
Mobile App Development
Web Development
Software Development
UI/UX Design
Show more
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
1 Project Listed
ZentixSoft Services
Web Design
Mobile App Development
Web Development
Software Development
UI/UX Design
eCommerce Development
WordPress Website Design
Software Testing
Blockchain
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
What are the core specializations of custom software development companies in the United Kingdom?
The core specializations of custom software development companies in the United Kingdom generally center around web/mobile app development and advanced digital technologies. Their expertise extends to AI-powered products, cloud solutions (especially DevOps), feature enrichment, and cybersecurity.
Overall, they provide end-to-end digital transformation solutions and engineer custom platforms and systems that drive competitive advantage and business growth across industries.
How much do software development services cost in the UK?
The cost for software development services in the UK ranges from £25,000 to £120,000 for small businesses. In contrast, large enterprises undertaking extensive digital transformation or building sophisticated, bespoke systems should anticipate costs starting at £80,000 and potentially exceeding £500,000.
For startups or businesses aiming to validate a concept, the initial cost is considerably lower. A minimum viable product (MVP) or a proof-of-concept generally falls within the £5,000 to £30,000 range. The final price is ultimately determined by the project's complexity, the chosen technology stack, the developers’ experience, and the geographical location of the service provider, which impacts their hourly or daily rates.
How do I choose the right United Kingdom software development firm?
To choose the right United Kingdom software development firm, begin by evaluating its portfolio and case studies to make sure they have experience in your required technology stack and niche. Inquire about its process and team structure, to make sure they follow an iterative methodology and that the core development team will be dedicated and accessible for regular communication.
Finally, prioritize a company with good reviews that reflect a track record of robust post-launch support and good collaboration throughout the project.
Do software development companies provide ongoing support?
Yes, software development companies do provide ongoing support, maintenance, and updates after the product launch. This post-launch service is important for fixing bugs, maintaining security, adapting to changing user needs, and making sure the software remains stable and competitive.
How do custom software development companies in the United Kingdom handle project revisions?
Custom software development companies in the United Kingdom predominantly handle project revisions through the Agile methodology. This involves breaking the project into short, iterative sprints, allowing the client to provide feedback and request necessary revisions at the end of each cycle.
This flow is intended to minimize risk and keep the final product aligned with the envisioned concept, rather than waiting until the end for a major change.