Leaf through the premier custom software development companies in London that customize, maintain and/or build high-quality solutions, mobile applications and more. Filter listings by reviews, pricing, team size to find the ideal team for your project requirements and budget.
Best London Software Development Firm Rankings
15 Companies-Rankings updated: September 12, 2026
All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.
GeekyAnts is a global GeekyAnts is an AI-powered digital product engineering and consulting specializing in AI Consulting, Product Engineering, Enterprise Modernization, Digital CX, With 15+ years of experience, weve served 550+ clients like Google, SKF, WeWork, and ICICI, delivering 800+ projects...
Top Services:
Mobile App Development
Web Development
Web Design
eCommerce Development
UI/UX Design
Show more
Location
London, United Kingdom
Number of Employees
500 - 999
Average Hourly Rate
$25/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
36 Projects Listed
GeekyAnts Services
Mobile App Development
Web Development
Web Design
eCommerce Development
UI/UX Design
Software Development
Product Design
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Google
Liviit
Siveco Romania
Endlink
Scroll News
Clean Label
Cloud9
PubSquad
Sinam LLC
PopSmartKids Inc.
Data sourced from the agency's DesignRush profile
GeekyAnts Reviews & Testimonials
Mathias Willburger CEO at Millimetrika
5.0★
Web Development Review from Mathias Willburger
The final product optimized the company's process as expected and has been well received by users. The company appreciated how well the Geeky Ants communicated, always punctual for meetings, and responsive to inquiries despite being in different timezones.
Deekshu Gunaga Review from Google
1.0★
Deekshu Gunaga's Review Sourced from Google
Very poor hiring management experience at GeekyAnts. After scheduling the interview and making candidates wait for one week, the hiring team only said the application was “on hold” and mentioned there may be an update next month. After that, there was no response or communication at all. Candidates deserve proper updates and professional handling instead of being ignored. It was worst experience
Sankalp Deshpande Review from Google
1.0★
Sankalp Deshpande's Review Sourced from Google
Don’t waste your time going for the interview. They’ll make you wait and then just tell you your application has been rejected without giving proper feedback Even though I have healthcare experience and cleared the relevant rounds, they still said I don’t have experience in BA. Feels like a total waste of time — waiting, interviewing, and then being rejected without proper feedbac
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Making functional and user friendly software's for humans
Mobirevo is a Leading custom software development agency focused on web, mobile app development & saas application development, Enterprise resource planning, and management software (ERP software development). We are a team of incredible Design & Agile software development experts in all major technology...
Top Services:
Web Design
UI/UX Design
Web Development
Wearables
Software Development
Show more
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$200/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
2 Projects Listed
Mobirevo Services
Web Design
UI/UX Design
Web Development
Wearables
Software Development
Mobile App Development
IT Services
DevOps Consulting
AI Development
Blockchain
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Every Event Delivery
Monnee Inc.
Rent is Cheap
Virtual Lungs Fitness
Propvat
Data sourced from the agency's DesignRush profile
Mobirevo Reviews & Testimonials
Bobby Palmieri CEO at Lilo Social
5.0★
UX Strategy Review from Bobby Palmieri
Creating a smooth and engaging user experience was very important for our advertising company, and the team delivered exactly what we needed. They took the time to understand our goals and designed a strategy that made our platform easier to use and more attractive to clients. Their communication was excellent, and they kept us updated every step of the way. They worked fast, made changes when needed, and delivered everything on time. Since implementing the new UX strategy, weve seen better engagement and more positive feedback from users. The entire process was simple and stress-free. Highly recommended for UX strategy!
Jeanette Marais CEO at Momentum Group Limited
5.0★
Mobile App Development Review from Jeanette Marais
Building a mobile app for a finance company requires precision, security, and ease of use, and the results were outstanding. The team took the time to understand every requirement and created an app that is both user-friendly and reliable. From start to finish, communication was clear, and every update was delivered on time. Any requested changes were handled quickly, and the final product has made financial transactions much easier for clients. The process was hassle-free, and their expertise truly made a difference. Highly recommended for mobile app development!
Tiziano Tassi CEO at Caffeina
5.0★
Web Development Review from Tiziano Tassi
Creating a professional and user-friendly website was a top priority for our advertising company, and the results were impressive. The team carefully listened to our requirements and designed a site that is both visually appealing and easy to navigate. Throughout the project, communication was clear, and any adjustments we requested were handled promptly. The website performs smoothly and has significantly improved our online presence. The experience was seamless, and their expertise truly stood out. Highly recommended for web development services!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
SENLA is the leading provider of Talent Augmentation in Europe, with a team of 700+ tech experts. Trusted by BOSCH, IKEA, Bayer, and Deloitte, we help scale tech teams with skilled engineers, architects, and data scientists...
Top Services:
Staff Augmentation
Mobile App Development
Software Development
CRM Consulting
UI/UX Design
Show more
Location
London, United Kingdom
Number of Employees
500 - 999
Average Hourly Rate
$49/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
38 Projects Listed
SENLA Services
Staff Augmentation
Mobile App Development
Software Development
CRM Consulting
UI/UX Design
Software Testing
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Abbott
Bosch
Schlumberger
Bayer
SANOFI
Forex Club
KPMG
Western Union
LeroyMerlin
SES
Data sourced from the agency's DesignRush profile
SENLA Reviews & Testimonials
Andrew Graham CEO at Borrowell
5.0★
Software Development Review from Andrew Graham
From the beginning of our partnership, SENLA showed a thorough comprehension of the goals and requirements of our clients. Their group spent time carefully considering our needs and providing insightful recommendations to improve the project's final result. There was constant communication throughout the process, with regular updates and fast answers to any questions or concerns.Working with SENLA is made even more astounding by their dedication to provide superior, personalized solutions that are catered to the individual needs of each of our clients. With the use of cutting-edge technologies and industry best practices, their web creation ability is simply unmatched, producing aesthetically beautiful and intuitive websites. When it comes to incorporating intricate features or guaranteeing mobile responsiveness, SENLA never fails to produce outstanding outcomes.
Andrew Jaramillo Director of Strategic Operations at Apto
5.0★
Project Management Review from Andrew Jaramillo
Our partnership with SENLA has been pleasant and productive. We have smooth communication during the process, the project-based team are extremely responsive and prove to be the professionals of their business.
Dasha Sekach Review from Google
5.0★
Dasha Sekach's Review Sourced from Google
Great company with a professional and friendly team. High-quality software solutions and clear communication👍. Highly recommended for anyone looking for reliable IT services.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
DeepInspire is a boutique software development company with a focus on fintech software development, offering services such as IT consulting, technical due diligence, digital transformation, product development, MVP development, and more...
Top Services:
Software Development
Web Design
Mobile App Development
AI Development
UI/UX Design
Show more
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$60/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
15 Projects Listed
DeepInspire Services
Software Development
Web Design
Mobile App Development
AI Development
UI/UX Design
Blockchain
Big Data Analytics
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Experian
Baird & Co
Hexagon
SGK
London Fish Exchange
DRFQ
Clooney Foundation for Justice
Data sourced from the agency's DesignRush profile
DeepInspire Reviews & Testimonials
Bogdan A. Chief Product Officer at GMAT Club
5.0★
Software Development Review from Bogdan A.
DeepInspire helped us with a major redesign and then we retained them for ongoing development of the GMAT Club platform. We ended up working together for 10 years. Their team covered everything from UX/UI design to front-end, back-end, mobile development, and project management. They have been a key part of improving how our platform looks, works, and grows over time.What attracted me the most to DeepInspire was how they learned our proprietary systems and business. They were not just completing tasks to say they were done with minimum effort. They brought in talent that we needed over the years that I would have trouble recruiting and retaining on my own. (Not having to spend time on finding talent and project managed saved a lot of energy). Overall, their team was very capable and made a big difference.
Sheridan Norrey CEO and Owner at LifeLibrary
5.0★
Software Development Review from Sheridan Norrey
DeepInspire helped us bring LifeLibrary to life from the very beginning. They worked closely with us to understand the needs of care homes and their residents, turning a rough idea into a working app. They handled everything from early research and design to building the MVP, always making sure it was easy to use and met care industry standards.What impressed me most about DeepInspire was their approach to truly understanding the problem they were solving. Instead of just relying on calls or documents, they joined us for an in-person visit to a care home in Nottingham. By speaking directly with residents, carers, and managers, they gained a real understanding of the day-to-day challenges in care settings. That level of empathy and hands-on involvement is rare and it made a big difference in shaping a meaningful, user-focused product.
Viktoria Kalaida Financial Director at LD Group
5.0★
Web Design Review from Viktoria Kalaida
Excited with [the] work of DeepInspire! Their team helped us with outstanding website design & development. When you look for [...] really creative thinkers with good marketing skills, this team will be the perfect fit for you. Every project with DeepInspire was of high quality full of ideas, great communication, and on-time delivery. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Timspark is a software development company delivering custom technology solutions through skilled, autonomous engineering teams. Our flexible delivery model helps clients solve complex challenges, accelerate development, and build reliable, scalable digital products...
Top Services:
Staff Augmentation
Software Development
Mobile App Development
AI Development
DevOps Consulting
Show more
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$40/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
35 Projects Listed
Timspark Services
Staff Augmentation
Software Development
Mobile App Development
AI Development
DevOps Consulting
CRM Consulting
Software Testing
IT Services
IoT
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Android ID scanner & secure transaction app
Mobile app harnessing Blockchain technology
Mobile app for active travelers
Sales & marketing analytics for a pharma
Electronic market analyses for a European retail
Loyalty card payment app
Unveiling history Augmented reality travel app
Corporate system to a cloud-based solution
Streamlined web-based HRM ecosystem
Data sourced from the agency's DesignRush profile
Timspark Reviews & Testimonials
Evelyn Sinclair COO at Nexus Dynamics Solutions
5.0★
Software Development Review from Evelyn Sinclair
I had an incredibly positive experience with their services and the final product they delivered. It was a successful collaboration as I connected with investors who were impressed and interested in investing in the project. Throughout the process, they consistently provided solid and impressive work, earning them a five-star rating from me. Their work consistently showcased solid and impressive results, demonstrating their expertise and commitment to delivering excellence. There isn't anything specific that I would suggest for improvement. My experience with them was overwhelmingly positive, with no notable drawbacks or areas for enhancement.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Custom Web And Mobile Application Development Company, SAAS app development company
Kanhasoft have successfully delivered various custom solutions to our clients from dynamic SAAS app development to custom made CRM and ERP solutions, Web scraping along with data analysis and reporting, Marketplace apps, Many custom workflow application for various industries...
Top Services:
Software Development
Mobile App Development
Software Testing
CRM Consulting
Staff Augmentation
Show more
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$25/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
19 Projects Listed
Kanhasoft Services
Software Development
Mobile App Development
Software Testing
CRM Consulting
Staff Augmentation
ERP Consulting
IT Services
Cloud Consulting
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Worldee
Arcade CRM
Genie Manager
Aexdo
Nation Risk Managers
iKIDS
BeConnected
Helium 10
Trucker Pilot
Service Roller
Data sourced from the agency's DesignRush profile
Kanhasoft Reviews & Testimonials
Chingchai (Chai) Humhong Chief Executive Officer at MAPEDIA COMPANY LIMITED
5.0★
Mobile App Development Review from Chingchai (Chai) Humhong
Kanhasoft demonstrated expertise in strategic planning, user-centric design, and meticulous implementation for a feature-rich and user-friendly application for our custom mobile app project. Its strategic approach optimized operational efficiency, positioning us for sustained growth and establishing market leadership. Kanhasoft's communication, proactive problem-solving, and expertise ensured project continuity. Collaborating with the agency was highly advantageous, given its strategic insights and unwavering commitment to excellence. (Verified via email)
Bertusje de Vries Review from Google
1.0★
Bertusje de Vries's Review Sourced from Google
Do not recommend, they stole my intellectual property and have blocked me.Do not do business with them.
Aaditya Bhadra Review from Google
5.0★
Aaditya Bhadra's Review Sourced from Google
Working at Kanhasoft is an absolute privilege. Every day, I'm inspired by the dedication of our team to deliver exceptional software solutions and unparalleled service. It's a true pleasure to contribute to a company that values innovation, quality, and client satisfaction above all else.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Azilen Technologies is a prominent enterprise AI development company that takes pride in delivering exceptional AI, Data, and HRTech solutions to organizations seeking digital transformation...
Top Services:
AI Development
Software Development
IT Services
IoT
Cloud Consulting
Show more
Location
London, United Kingdom
Number of Employees
250 - 499
Average Hourly Rate
$35/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
16 Projects Listed
Azilen Technologies Services
AI Development
Software Development
IT Services
IoT
Cloud Consulting
Mobile App Development
Wearables
Big Data Analytics
Managed Services
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Purpose built software. Partner led process. Business changing results.
CCQ Tech is a UK-based technology consultancy specialising in bespoke software development for organisations with complex operational challenges. For over 20 years, we've partnered with financial institutions, engineering firms and infrastructure organisations to design and build custom software platforms...
Top Services:
Software Development
Web Development
Staff Augmentation
AI Development
Show more
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$150/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
5 Projects Listed
CCQ Tech Services
Software Development
Web Development
Staff Augmentation
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Transforming Ideas Into AI-Driven Web And Mobile Apps
Since 2012, Agile Cyber Solutions has transformed ideas into reality for startups and businesses. Specializing in web, API, mobile, and AI technologies, we deliver agile, client-focused solutions with ongoing support. With 350+ projects, we align every product with our clients vision...
Top Services:
Software Development
Mobile App Development
Web Design
AI Development
Show more
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
6 Projects Listed
Agile Cyber Solutions Services
Software Development
Mobile App Development
Web Design
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Expert in Developing Custom Software, Mobile Apps, and Web Apps for Any Industry Worldwide| B2B
Softexpoit's team of experts combines technical expertise and creativity to develop custom software, mobile app, and web app, backend, mac/windows solutions that meet your specific business/official needs.We understand that every business is different, which is why we offer customized solutions...
Top Services:
Mobile App Development
Software Development
Web Development
IoT
Software Testing
Show more
Location
London, United Kingdom
Number of Employees
Under 49
Minimal Budget
$10,000 - $25,000
Portfolios Count
8 Projects Listed
Softexpoit Services
Mobile App Development
Software Development
Web Development
IoT
Software Testing
Web Design
UI/UX Design
AI Development
eCommerce Development
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
More than just software. Developing your next adventure.
Blue Functor is a team of passionate engineers, developers, and designers dedicated to delivering elegant and meaningful software applications. We specialise in creating scalable, secure, and reliable solutions using the latest technologies. Our services include software development and CTO as a Service...
Top Services:
Software Development
Location
London, United Kingdom
Number of Employees
Under 49
Minimal Budget
$10,000 - $25,000
Blue Functor Ltd Services
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Leading Branding & MVP Studio for Startups in London
Rattlesnake Group is a London-based boutique studio helping startups design, build, and launch MVPs through integrated branding, product design, and software development...
Top Services:
Web Development
Web Design
Branding
Product Design
Digital Marketing
Show more
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$150/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
8 Projects Listed
Rattlesnake Group Services
Web Development
Web Design
Branding
Product Design
Digital Marketing
SEO
AI Development
Software Development
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Limeup is a global application and software development company that turns complex ideas into powerful digital solutions. We help B2B and enterprise clients build high-quality digital products that enable scalable growth...
Top Services:
Software Development
Mobile App Development
AI Development
Blockchain
Web Development
Show more
Location
London, United Kingdom
Number of Employees
Under 49
Minimal Budget
$10,000 - $25,000
Limeup Services
Software Development
Mobile App Development
AI Development
Blockchain
Web Development
Web Design
UI/UX Design
CRM Consulting
ERP Consulting
Customer Support
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Poker House
Aristocrat
i88 Trading Platfrom
Data sourced from the agency's DesignRush profile
Limeup Reviews & Testimonials
Mateusz Gidian Review from Google
5.0★
Mateusz Gidian's Review Sourced from Google
Amazing service,I’ve rarely come across a team that’s this efficient and this friendly. For a product with strict uptime requirements, we required trustworthy UK-based software engineering services. From initial contact, Alex provided quickness and transparency. In addition to overseeing the procedure, he contributed to the product's unexpected development.
Iryna Tychkivska Review from Google
5.0★
Iryna Tychkivska's Review Sourced from Google
Our industry has very specific compliance requirements, and most teams from UnitedKingdom we spoke to didn't get it. Limeup stood out as a bespoke software development team that actually listens. They ran our integration flawlessly and caught potential pitfalls early.We've since brought them on for phase two.
Gabriela Castro Review from Google
5.0★
Gabriela Castro's Review Sourced from Google
We came up to Limeup with a raw idea, we were not even be sure what we need a native app or a web-based platform. Alex stepped in early, helped us sort the possibilities and let us figure out what would be actually effective for our target audience. As a vendor of custom software solutions, they were pragmatic and involved. When we had questions, we always knew who to ask. It’s rare to find a dev partner in the UK that combines strategy and engineering this well.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Building complex SaaS created to scale operations and workflows
UITOP is a software development and product design agency for B2B SaaS, ERP, CRM, and business software. We improve usability, modernize legacy systems, and build scalable products that are easier to use and grow...
Top Services:
Software Development
Product Design
Graphic Design
UI/UX Design
Mobile App Development
Show more
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$40/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
13 Projects Listed
UITOP Services
Software Development
Product Design
Graphic Design
UI/UX Design
Mobile App Development
Web Design
Branding
Web Development
AI Development
Logistics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
HR
Agetec
Edtech
Cryptocurrency
CRM
NFT Fashion
NFT Books
Consultancy
Fintech
Construction
Data sourced from the agency's DesignRush profile
UITOP Reviews & Testimonials
Jonas Weber CEO at CivitasIQ
5.0★
Product Design Review from Jonas Weber
We worked with Uitop to create an interface for our product. The challenge of our product is IoT integration and deep analytics. They created an interface from scratch and supported us with development. They do not just do the interface, but they explain to us why we should use such elements. They started with a design that perfectly captured what our product was all about. It was user-friendly and looked great. We are totally satisfied with the results!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews