A friend of mine was stuck in a “great idea, but no clue how to build it” situation. She wanted an app for her tutoring centre that would let her students access materials anywhere and everywhere. The problem was, coding wasn’t her strong suit.
And so she turned to me to help her find people who can bring her idea to life.
With the help of my Wunderlust London team, we started digging into the city’s tech scene—researching companies, comparing portfolios, and talking to business owners for insight.
From that search, we discovered the best developers in the city, and now we’re sharing them with you in this guide. Here are the best development companies in London to consider for your next project!
How much does a software development service cost in London?
A software development service in London can cost as low as £10,000 for a simple website to over £150,000 for a complex enterprise system.
How we chose the best software development services in London
Quality of service: We looked for companies that excel in the technical aspects of developing software. We preferred those who prioritise a client-centric approach for every system and app they build.
Communication: We opted for companies that always give updates on the project’s status and respond to every question promptly.
Range of services: We included companies that offer extensive software development services for mobile, web, and more.
Cost-effectiveness: We searched for companies that provide quality software development services at a cost that’s within the industry standard.
1. Fan Studio

Address: 20-22 Wenlock Rd
Phone: +44 20 3287 1166
Business hours:
- Mon-Fri: 9 AM – 6 PM
We highly recommend Fan Studio for gaming companies and businesses looking for gamified marketing strategies. They boast more than 15 years of relevant experience in developing apps for gaming and non-gaming enterprises.
What surprised us when we looked into them was their skills in developing apps perfectly designed to boost companies’ marketing engagement and brand loyalty.
They help non-gaming companies increase their customer engagement rate by integrating gaming elements, such as points, badges, and more. These entice people in reward systems.
If you want to build a game from scratch, they offer a bespoke game development service. They can help you in all aspects of creating a game, from ideation to designing processes.
However, they offer limited non-gaming solutions, making them not ideal for those who need complex, non-game-related software.
Fan Studio is top of their game
“I have been working with Fan Studio for the past 7-8 months and my experience has been nothing but great. The professionalism and attention to detail are top of the line. From the beginning til now, they have guided me through the process and worked with me and my team on every aspect of our product development. They have been quick to respond to my changing needs and understand the rigors of developing an app. As we are finishing up on our current project, I already have a few more in line that I am ready to get them started on and have no doubt they will deliver an outstanding product. When it comes to mobile app development. it goes without saying that Fan Studio is top of their game.”
-Kelvin Pan, Google Review
I would highly recommend Fan Studio
“When it comes to app development I would highly recommend Fan Studio. Andrei leads a very knowledgeable team with strong project management skills. I came to them with an idea and a brief design proposal and they took the project on from there. They were always willing to make minor changes when requested and stayed in regular contact by providing helpful updates throughout the process. Everything was done to a very high standard and the end product turned out exactly as I hoped and envisaged it would.”
-Richard Birchall, Google Review
2. Limeup

Address: Queens House, 180 Tottenham Court Road
Phone: +44 20 8135 6600
Business hours:
- Mon-Fri: 9 AM – 7 PM
Limeup is the company you can depend on for custom software development services for your business. They can build tailor-made software applications to meet your organisation’s specific needs.
Their skills in considering the user interface and user experience when designing software are a huge plus. Their designers have a high understanding of responsive and adaptive design principles, allowing them to excel in integrating these elements.
What’s even better is that they offer diverse software development services. They offer mobile, web, and even AI development.
Their diverse services are also suitable for multiple industries. Some industries they can help are real estate, healthcare, and finance.
It’s also great that they can build software that integrates smoothly with businesses’ existing systems.
We heard, though, that they tend to focus more on design. Some customers reported late delivery of working software and delayed software testing because of the team’s focus on design.
Proactive, efficient, and incredibly skilled
“Limeup truly outdid themselves in developing a mobile app that has completely transformed how we engage with our customers. Their team took our initial ideas and turned them into a polished, intuitive platform that’s a joy to use. It was pleasant to collaborate with them due to their attention to detail and ability to anticipate our needs before we even voiced them. The team was proactive, efficient, and incredibly skilled at bringing our vision to life. Our app has made a huge impact on our business, and Limeup played a key role in that success.”
-Hanna, Google Review
They were pragmatic and involved
“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.”
-Gabriela Castro, Google Review
3. Devtrios

Address: 27 Old Gloucester St
Phone: +44 7470 801776
Business hours:
- Mon-Thu: 9:30 AM – 6:30 PM
- Fri: 9:30 AM – 12 AM
- Sat: 12 AM – 6:30 AM | 10:30 AM – 3:30 PM
We highly recommend Devtrios if you’re just starting your business. They have a great track record of successfully delivering projects for startups. They seem to understand the pressures of limited budgets, a challenge many startups face.
They’re particularly impressive at developing AI-driven automation systems. They build effective AI software by strategically choosing algorithms and models that are appropriate to their clients’ problems and goals.
Aside from AI software, they’re also skilled in building blockchain software. Their deep understanding of blockchain fundamentals and proficient coding skills in relevant languages allowed them to build and maintain blockchain applications and systems.
We also love that they can help many industries, including fintech, logistics, and e-commerce.
However, as a relatively small company, they have limited capacity for handling big projects.
They really know their stuff
“Devtrios has been amazing to work with! Their team really knows their stuff when it comes to SEO, social media, and digital marketing. Since working with them, I’ve seen a big improvement in traffic, engagement, and conversions. What I appreciate the most is how professional, creative, and reliable they are. They take the time to understand your business and create strategies that actually work. Plus, they’re super easy to communicate with, which makes the whole process smooth and stress-free. If you’re looking for a team that delivers real results, I highly recommend Devtrios!”
-Teddy James, Google Review
They’re committed to delivering outstanding results
“Devtrios offers tailored digital solutions, specializing in custom web and mobile app development. Our team leverages the latest technologies like React.js, Next.js, and Node.js to create secure, scalable, and high-performance websites and applications. We also provide UX/UI consultancy, e-commerce solutions, and cloud hosting with AWS to ensure seamless user experiences and business growth. Whether you need a fully customized web app or mobile solution, Devtrios is committed to delivering results that drive engagement, increase conversion, and support long-term success.”
-Angela, Google Review
4. Theodo UK

Address: 20 Baltic St E
Phone: +44 20 3872 2922
Business hours:
- Mon-Fri: 9:30 AM – 7 PM
One of the things we like about Theodo is their extensive software development services. They offer a range of mobile, web, and cloud software development services.
We learned that they’re known for their agile delivery, which is really great. This software development and delivery approach prioritises adaptability and teamwork. Specifically, it delivers value through small but constant improvements.
Many of their long-time partners love how fast they work. Their rapid time-to-market (TTM) for every software they build benefits businesses in many ways. They help companies increase revenue and even gain a competitive advantage.
Their full support for the software’s initial stage to its completion is also commendable. This ensures a seamless transition between stages, as you have experienced people to guide you.
The only downside is that they don’t usually accept simple software and app development projects.
I love working with them
“I love working with Theodo Uk, they are super efficient and very agile oriented and passionnate. I recommend + will be happy to work again with the teams there.”
-Gwenaël Gourevich, Google Review
Great developers
“Fantastic place to work. Great developers 📸”
-Daniel Belo Goncalves, Google Review
5. Magora

Address: 56 Shoreditch High St
Phone: +44 20 7183 5820
Business hours:
- Mon-Fri: 9 AM – 6 PM
What’s great about Magora is that they transfer intellectual property (IP) rights to their clients for the bespoke software they build for them. This is not a common practice for all companies, so it’s definitely an advantage.
Some of their clients I spoke to praised them for their skills in integrating the Internet of Things (IoT) elements into every project. Having this feature in a software greatly increases customer satisfaction as it offers a personalised and engaging experience.
In addition, the extensive tech stack they have means a streamlined software development process. Not only that, they also help in developing scalable applications. Some tech stacks they have at their disposal are Android, iPhone, and iOS developers.
We also love that they offer long-term support for every project they make, which is what most of us want when buying services. They assist with maintenance, security, and necessary upgrades.
However, some of their clients told us it took some time for them to finalise a project. The results were still faultless, though.
I was extremely impressed
“We worked with Magora team on various software and app development projects, and I must say that I was extremely impressed by their professionalism, expertise, and attention to detail. Their team is skilled and experienced in developing software solutions tailored to specific needs of their clients. From the initial consultation to the final product, they offer a seamless development process that is aimed at delivering top-notch results. One of the things that really stood out for me was their approach to project management. They kept me informed every step of the way and ensured that my project was delivered on time and within budget. They were also flexible and took on board my feedback, making changes where necessary to ensure that the end product met my expectations. Overall, I would highly recommend Magora to anyone looking for a reliable, professional and innovative IT outsourcing company.”
-Vitaliy Chorba, Google Review
They’re fun to work with
“I really enjoyed working with Magora. The discovery phase played a crucial role in kick-starting the project on the right foot. The comprehensive research and analysis they conducted during this phase allowed them to present us with a solid strategy and roadmap for the development process. The discovery phase proved to be an invaluable tool, providing clarity and direction from the outset. In addition, Magora offered a good price for their services. Considering the level of professionalism, expertise, and the top-notch final product they delivered, their pricing was reasonable and competitive. They provided us with a transparent breakdown of the costs, allowing us to make informed decisions throughout the project. We were pleased with the value we received in terms of the quality of work and the overall investment. Also, they are fun!”