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
19 Companies-Rankings updated: August 19, 2026
All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.
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...
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 integrate, innovate, and elevate enterprise systems.
Intellectsoft builds custom software, AI solutions, and dedicated engineering teams for enterprises and fast-growing businesses across the US and UK...
Location
London, United Kingdom
Number of Employees
100 - 249
Average Hourly Rate
$80/hr
Minimal Budget
$50,000 & Up
Portfolios Count
12 Projects Listed
Intellectsoft Services
Software Development
Mobile App Development
Wearables
Software Testing
Blockchain
AI Development
UI/UX Design
Big Data Analytics
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Harley-Davidson
the London Stock Exchange
Ernst & Young
Qualcomm
Bombardier
Data sourced from the agency's DesignRush profile
Intellectsoft Reviews & Testimonials
Harshal Chhajed Undisclosed at Undisclosed
4.5★
Software Development Review from Harshal Chhajed
They have highly skilled support staff for faster resolution which leads to customer satisfaction. Also, it has many features including IoT and blockchain apart from regular software development. If there are any changes in the scope of the project at a later stage, it can prove quite costly and also difficult to accommodate last-minute client-side scripting changes. They are versatile, cost-effective, and offer quick customer support. They offer a very customized software development tool where business needs can be addressed. It is very cost-optimized and hence can help generate good returns for business investment.
Vitaly Dyachenko CEO and Founder at UppLabs LLC
5.0★
Software Development Review from Vitaly Dyachenko
Intellectsoft provided a great partnership by delivering quality services and working fast. They helped us to accomplish all the clients' projects on time. The team communicated transparently and showed [] great dedication. They were an ideal partner! (Verified via email)
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Dedicated to Transforming Your Business Operations and Online Presence
Unleash the Full Potential of Your Business with Tailor-Made Mobile App, VR, AR and Software Development...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$40/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
11 Projects Listed
Digital Solutions UK Services
Mobile App Development
Software Development
eCommerce Development
Digital Marketing
VR/AR
AI Development
IoT
DevOps Consulting
ERP Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Fire Survey System
EZE Shoring
MySpec
Go List
Force One
Crystals Healing Lights
Simon Payne National Roofing
KM Herbs
CEG Consulting
Site Pro
Data sourced from the agency's DesignRush profile
Digital Solutions UK Reviews & Testimonials
T-W-S Nationwide Managing Director at TWS Nationwide
5.0★
Mobile App Development Review from T-W-S Nationwide
Fire survey systems is a project myself and Rob at digital solutions created in 2021 from the start we have continued to grow the project and this has been a dream app that fits right into the business Digital solutions delivered the scope of the app to the best standard and we will continue working with them continuously, they are a excellent business to connect up with to aid your business
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Index.dev is a global talent network that connects leading startups and enterprises with vetted tech talent remotely, from freelancers to contractors to full development teams. With 97% of trials turning into long-term hires, we help companies find highly-skilled tech talent within 48 hours, while managing...
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$70/hr
Minimal Budget
$50,000 & Up
Portfolios Count
9 Projects Listed
index.dev Services
Staff Augmentation
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Stuart
Vodafone
NetRefer
Daloopa
Perforce Software
Genemod
Matsuko
Entrupy
Omio
SpeQtral
Data sourced from the agency's DesignRush profile
index.dev Reviews & Testimonials
SAV BEA Review from Google
5.0★
SAV BEA's Review Sourced from Google
" If you're looking for a technical consultant who is knowledgeable, reliable, and always willing to go the extra mile, then Vadym Yatsunyk is your guy.One of the things that set Vadym apart from other technical consultants is his ability to explain complex technical concepts in a way that is easy to understand. He takes the time to listen and then offers customized solutions"
Tata Review from Google
5.0★
Tata's Review Sourced from Google
I am delighted to share my experience working with Account Executive Vadym Yatsunyk. From the very first interaction, Vadym exuded professionalism, enthusiasm, and dedication towards helping me achieve my goals.
Tatiana Ursu Review from Google
5.0★
Tatiana Ursu's Review Sourced from Google
I am proud to be part of such a team of professionals as I met here at Index. Index is a wonderful employer!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Ezulix is a custom software development company specialising in bespoke software designs tailored to specific business requirements. Ezulix specialises in on-demand solutions in the following fields:...
Location
London, United Kingdom
Number of Employees
100 - 249
Average Hourly Rate
$30/hr
Minimal Budget
$1,000 - $10,000
Ezulix Services
eCommerce Development
Web Development
Web Design
Software Development
IT Services
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Foodee
Secure-X
Doctor+
Data sourced from the agency's DesignRush profile
Ezulix Reviews & Testimonials
Evan Merali Managing Director at Raymond James
5.0★
Web Development Review from Evan Merali
We had a great experience working with Ezulix for the Web Development project. We were already impressed with their prolific experience in the same field coupled with reasonable pricing. Our project was complex and the architect at Ezulix conducted thorough review and displayed an impeccable understanding of the the functionalities and implementations.All of the deliveries were made in the timely manner. We highly recommend their services to anyone looking for blockchain application development.
robert burr Executive Vice President at Prince Contracting, LLC
5.0★
Software Development Review from robert burr
Ezulix has focus on a highly responsive portfolio management solution capable of handling thousands of large, complex projects. The agency developed core technologies for the platform while collaborating closely with their team. Although remote work posed some challenges, we remarked that Ezulix's efficient project manager worked diligently to solve communication issues.
Ruth McMenamin Head of Marketing at Canopy & Stars
5.0★
eCommerce Development Review from Ruth McMenamin
The team rarely encounters a design that truly leaves them in awe, but Ezulix's work perfectly captured the desired temperament and even surpassed expectations. The feedback from existing users familiar with the old website has been overwhelmingly positive. Every aspect of the UX/UI design contributed to creating a website beyond what was initially envisioned. The team wholeheartedly recommends Ezulix for exceptional design solutions.
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unicrew is a full-scale software development, consulting and design company, which provides a full spectrum of services - from design and software development to the unfailing commitment to quality assurance...
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$60/hr
Minimal Budget
$10,000 - $25,000
unicrew Services
Software Development
Product Design
Web Design
Web Development
eCommerce Development
AI Development
Mobile App Development
Software Testing
DevOps Consulting
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Dotsquares head office is based in Albourne (near Brighton and Hove), United Kingdom with international offices in the US, Australia, Europe, UAE, and has in-house development centres in Jaipur, India...
Location
London, United Kingdom
Number of Employees
500 - 999
Average Hourly Rate
$11/hr
Minimal Budget
Under $1,000
Dotsquares Ltd Services
Software Development
Mobile App Development
IT Services
Web Design
Digital Marketing
CRM Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
NHS
ShieldPay
Ocean Holidays
Daily News
Beat The Brochure
Microsoft
Virgin Australia
Dunkin Donuts
Ericsson
Bose
Data sourced from the agency's DesignRush profile
Dotsquares Ltd Reviews & Testimonials
Ben Lord Review from Google
1.0★
Ben Lord's Review Sourced from Google
I’m not usually one for making posts like this about other companies I do business with but given what I’ve experienced over the last 5 years, I feel very compelled to raising awareness into my experiences with Dotsquares.Initially, this company was very good at handling our website requirements. It was thanks to this that when I became the owner of Lorryspotting.com that I figured it would make sense to have them upgrade that website. It was a big project but with all the accolades and expertise that Dotsquares boasts about, it seemed to be within their scope of capability.Instead, it turned into the most miserable of projects that was riddled with the purest incompetence that I’ve had the misfortune to witness in almost 20 years of business. As per their terms of business, I advanced paid for part of the project yet they were incapable of delivering a functioning website. Added to this, the ageing status of the old site meant we suffered a server failure 16 months ago and when restoring the old site, it was proven that Dotsquares negligently compromised the colossal amount of data held on that site to potential hackers. By this point, enough was enough. Despite so-called “project managers” apparently understanding my business, they became mouthpieces with a catalogue of excuses and rhetoric that failed to take responsibility enveloped by expectations we would continue to pay to fix what they had caused.Ordinarily, escalating this to a company’s CEO should yield an immediate improvement to rectifying a situation. The CEO of this company ignored my email and relegated its handling to the very people causing the problem and failing to deliver any outcomes. It was therefore with no other alternative that I had to commence legal proceedings against this company. Despite repeated attempts to defend what was in essence an indefensible position, we reached a settlement on the matter, the terms of which I’m bound by a confidentiality order but has avoided it being played out before a Judge.Based on my reflections, this company may theoretically claim to value their customers but in reality their actions speak far louder. They do not deserve to be in business and I can’t even begin to fathom how they deal with some of the brands that their client list cites. I would absolutely urge anyone who does, or considers to work with them in any capacity to run for the hills - you will regret it otherwise! I only wish I had of checked out some of the reviews that are out there - reflecting on them now resonates virtually a carbon copy as to my experiences!
Aussie Lamp Centre Review from Google
5.0★
Aussie Lamp Centre's Review Sourced from Google
Congratulations to Dotsquares on 23 Amazing Years! 🎉A big congratulations to the entire Dotsquares team on reaching this incredible milestone! Special thanks to Manish Gujral, Priya, Pravin, Reetu, Jaishiv, and Ramavtar for your exceptional contributions.A special shout-out to "The A team" Manish Gujral, Priya, Pravin, reetu, Jaishiv, and Ramavtar for your exceptional contributions and dedication to this journey. We have been privileged to work with the digital marketing and development team for the last 4 years, and it’s been a fantastic experience. Here’s to many more years of success and innovation!
Palak Vig Review from Google
1.0★
Palak Vig's Review Sourced from Google
I have been waiting for my website to be completed for two years now, and the experience has been increasingly frustrating. The lack of timely communication and follow-ups from their side has been disappointing. Despite my repeated efforts to get updates and move things forward, progress has been unreasonably slow. I expected a much higher level of professionalism and responsiveness. I hope they take this feedback seriously and improve their communication and delivery timelines moving forward.
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Dataspot Technologies is a Dubai-based digital solutions provider empowering businesses with innovative IT, cloud, and AI-driven strategies. We deliver scalable technology, SEO, and marketing solutions that drive growth, enhance efficiency, and maximize ROI in the UAE and beyond...
Location
London, United Kingdom
Number of Employees
Under 49
Minimal Budget
Under $1,000
Portfolios Count
1 Project Listed
Dataspot Technologies Services
Web Design
Software Development
Digital Marketing
Web Development
SEO
Social Media Marketing
Branding
Creative Services
IT Services
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Experienced UK-based Summit level Salesforce consultancy, implementing the technology required to meet your business vision. We have the capability to support and deliver on a complete and tailored Salesforce implementation, from concept to delivery...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$160/hr
Minimal Budget
$1,000 - $10,000
Simpala Services
Digital Marketing
Managed Services
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Harrods Aviation
Power Saving Solutions
Igloo Vision
Leach's
Diales
Instep Education
Duo Group
Camping & Caravanning Club
Flowstore Systems
Gravity
Data sourced from the agency's DesignRush profile
Simpala Reviews & Testimonials
Lloyd Downey Review from Google
5.0★
Lloyd Downey's Review Sourced from Google
We recently engaged Simpala for the installation of a new system and are very pleased with the outcome. The project was managed professionally from start to finish, with clear communication and excellent technical execution. The team ensured the process was seamless and straightforward, which significantly minimised disruption. Their expertise and attention to detail gave us complete confidence in the solution delivered. The aftercare and ongoing support have also been excellent, providing reassurance that we are in safe hands. We would have no hesitation in recommending Simpala for their professionalism and high-quality service.
Kim Buchan Review from Google
5.0★
Kim Buchan's Review Sourced from Google
We’ve been really impressed with the support and expertise from Simpala. The team are always quick to respond to queries, no matter how unexpected, and they feel incredibly approachable, making it easy to reach out whenever we need help. They really take the time to understand our needs and bring fresh ideas and suggestions that help us move forward in ways we hadn’t considered.A special shoutout to Bret, Ibrahim, Hollie and David for their professionalism, proactive approach, and friendly support – it’s made a huge difference to our experience. Highly recommended!
Natasha Mackintosh Review from Google
5.0★
Natasha Mackintosh's Review Sourced from Google
We had a fantastic experience working with Simpala! From the very beginning, they were professional, attentive, and truly took the time to understand our vision. Their expertise in uplifting our CRM was evident throughout the project, the delivery was a success.A special shoutout to Tineke and May — they’ve been an absolute pleasure to work with. Their collaborative approach, clear communication, and genuine enthusiasm made the entire process enjoyable and productive.Highly recommend Simpala to anyone looking for a knowledgeable and supportive team to elevate their CRM and business operations!
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We don't just build software at Top Remotely we create solutions that work, scale, and impress. With a powerhouse team of 150+ in-house developers, we turn complex challenges into seamless digital experiences. Whether you need custom software, enterprise platforms, or next-gen IT solutions, we bring the Top...
Location
London, United Kingdom
Number of Employees
500 - 999
Average Hourly Rate
$20/hr
Minimal Budget
$10,000 - $25,000
Top Remotely Services
Mobile App Development
Software Development
DevOps Consulting
IT Services
Web Development
UI/UX Design
Managed Services
AI Development
Blockchain
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
SpireLabs is a UK-based software development agency specialising in bespoke solutions for service-based businesses. We design, develop, and deliver custom web platforms, client portals, and internal tools tailored to your unique needs. Whether you're streamlining operations or launching a new idea, our expert...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
SpireLabs Services
Web Design
Web Development
Software Development
SEO
UI/UX Design
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
We Design Lean, Conversion Focussed Digital Products.
Heights Digital is a design partner for climate-tech startups sand impact-driven businesses. We help founders scale faster through lean, high-converting UX/UI and brand design, without wasting precious runway. From MVPs to pitch decks and scalable platforms, we deliver fast, reliable design support that turns...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$1,000 - $10,000
Heights Digital LTD. Services
Branding
Design Services
UI/UX Design
Web Design
Web Development
Graphic Design
Content Marketing
Mobile App Development
Software Development
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Cogneo Group Limited is a leading independent digital transformation consultancy focused on accelerating innovation and engineering advanced technology, data, and artificial intelligence solutions that empower customers and teams. We leverage CX, AI, ML, and data analytics to craft bespoke strategies, robust...
Location
London, United Kingdom
Number of Employees
Under 49
Minimal Budget
$25,000 - $50,000
Cogneo Group Limited Services
AI Development
IT Services
ERP Consulting
Mobile App Development
Software Development
Web Development
Managed Services
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Frank Porter
Janta Logistics
ViSARby
Data sourced from the agency's DesignRush profile
Cogneo Group Limited Reviews & Testimonials
Robert Wójcik Review from Google
5.0★
Robert Wójcik's Review Sourced from Google
I could not be happier with my experience working with Cogneo Group. What stands out most is their multidisciplinary approach to problem solving, always with the best interests of my company in mind. Their commitment to supporting partnerships in our joint AI&Tech transformation projects has been unique.
Julian Schön Review from Google
5.0★
Julian Schön's Review Sourced from Google
Cogneo Group brought a fresh perspective to our tech challenges. They focus on practical, clear strategies over industry buzzwords, offering solutions that are both innovative and straightforward.Cogneo stands out as a reliable partner in the consulting world, providing valuable insights and services.
Marek Przemieniecki Review from Google
5.0★
Marek Przemieniecki's Review Sourced from Google
Exceptional service with the results I was looking for. Highly recommended for all your consulting needs.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We Design Distinctive Websites That Deliver Results.
From our studio near the Olympic Park in east London, our team design and produce distinctive, high-quality websites for a diverse range of clients. Using a collaborative process we take time to research and understand our clients' business goals and devising robust creative strategies before translating them...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$1,000 - $10,000
Superwire Ltd Services
Branding
Web Design
UI/UX Design
eCommerce Development
Mobile App Development
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Soho House
BBC
Trafalgar Entertainment
London Fashion Week
Build Hollywood
Wren Pubs
Loft Studios
Chiswick Cinema
The Garden Cinema
Data sourced from the agency's DesignRush profile
Superwire Ltd Reviews & Testimonials
Richard Vitola-Jones Review from Google
5.0★
Richard Vitola-Jones's Review Sourced from Google
The team showed great commitment, flexibility and professionalism to help us develop an ambitious new website. Their continued support has been fantastic; would highly recommend.
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We're a full service digital product team, specialising in the design of complex web applications for the construction, life sciences, manufacturing and fintech industries. We focus on usability and have honed processes that enable rapid, low waste, iterative designs...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$110/hr
Minimal Budget
$1,000 - $10,000
Vigo Services
UI/UX Design
Product Design
Design Services
Web Design
Web Development
Software Development
Cloud Consulting
Business Consulting
CRO
Digital Strategy
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Rytsense Technologies is an AI-driven technology company specializing in AI development services, machine learning solutions, and intelligent automation. We help businesses build advanced AI applications, integrate AI models into existing systems, and transform data into actionable insights...
Location
London, United Kingdom
Number of Employees
100 - 249
Average Hourly Rate
$25/hr
Minimal Budget
Under $1,000
Rytsense Technologies Services
AI Development
Mobile App Development
Software Development
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Disney
NTD Software
Circyoulation
Fakhruddin Properties
Allyzent
Data sourced from the agency's DesignRush profile
Rytsense Technologies Reviews & Testimonials
KARTHICK K Review from Google
5.0★
KARTHICK K's Review Sourced from Google
We were exploring ways to automate some of our internal processes and reached out to Rytsense Technologies for AI agent development. What I appreciated most was that they didn't jump straight into the technology. They spent time understanding how our team worked and what challenges we were trying to solve. The AI agent they built has helped us save time and improve efficiency. The entire experience felt collaborative and professional. If you're looking for an AI development company in India that genuinely listens and delivers, I would definitely recommend Rytsense.
Vigneshwari S Review from Google
5.0★
Vigneshwari S's Review Sourced from Google
We came across Rytsense Technologies while looking for an AI development companies in India and decided to connect with their team. From the first conversation, they were easy to work with and took the time to understand what we were trying to achieve. They explained the technical aspects clearly, provided practical suggestions, and kept communication open throughout the project. The entire process felt well-organized, and we were happy with the outcome. It was a positive experience working with their team.
Arun Kanagaraj Review from Google
5.0★
Arun Kanagaraj's Review Sourced from Google
What stood out about Rytsense Technologies was their ability to understand our business problem before discussing the technology. We initially approached them with a rough idea for an AI agent, and their team helped shape it into a practical solution that our team could actually use. The process was straightforward, communication was clear, and the final result saved us a significant amount of manual effort. If you're looking for an AI Agent Development Company in Chennai that focuses on solving real business challenges rather than just building software, Rytsense is worth considering.
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