Top 25 Software Development Companies in London

DCSL Software redeveloped the recruitment software system of a construction firm. The firm laid out what they wanted and DCSL designed, tested, and delivered on the system. The client was pleased with the project and felt that DCSL's skills made the collaboration extremely easy. 

"We were able to see straightaway how the system would look and work. That’s another reason it went so smoothly." – Manager, Support Department, Construction Firm

A6 Digital developed an e-commerce site for a car rental company. Using HTML, the team applied brand themes and colors to design a website that met the client's needs and reflected the brand. The firm provided front end and back end designs to the website. A6 Digital also provided images and landing pages for sales for the website's design and made the site compatible with most mobile devices.

Atlas - Clever Software developed an app for a corporate accounting firm. The firm wanted an app that would increase company engagement. Atlas - Clever Software handled everything development-wise. 

"The app was very well received by our team, by the rest of the company, by the board members, and now our customers. It’s a unique offering that none of our competitors are able to contend with." – Head of Internal Delivery, Corporate Accounting Firm

Audacia developed a sophisticated Magento-integrated database for a data center equipment broker. Audacia delivered a high-performing database integrated with both the Magento build and Sage 200 ERP, and the site has had no unplanned downtime since partnering with them.

"They were clear and transparent, which is important for project management. Their updates were good and they were fantastic communicators." — IT Security Manager, Hardware Broker

Ballard Chalmers Ltd integrated a billing platform into a web application for an energy company. Their team designed a UI and created scheduling features. improved functionality. Their work mproved booking and interface functionalities.

"They’ve really improved the functionality and our ability to work with other installers.."–Junior Product Manager, Energy Company

A large, influential cloud services company hired Beyond for its content marketing and digital strategy expertise. The main project was a content hub that featured industry news and best practices for chief information officers (CIOs). They also designed a client-oriented newsletter for the company, which features vital industry and company information in a marketable format for users. The client praised Beyond's flexibility, noting that their projects included a number of pivots and last-minute changes that Beyond accounted for seamlessly.

"Their enthusiasm for our projects is unparalleled, and it’s great to have a partner that’s optimistic about what you can create together." – Content Marketing Lead, Large Tech Company

After BJSS worked on automating a grocery store's software system, they later redesigned their e-commerce platform and built product scan tools. The agency delivered everything on time. The client prides BJSS on tackling such a hard project with intense passion.

"They're very straightforward, and they're very matter of fact. They tell you as it is, without dressing it up and without making drama of it." – Head of IT Delivery, Retail Grocer

A SaaS enterprise provider engaged Eastern Peak to develop software development kits [SDK] that allowed users to connect to PHP and .NET components. Because users worked from various technologies, Eastern Peak's plug-ins allowed them to integrate with the client's Java platform. Users have implemented the plug-ins extensively.

"Eastern Peak delivered 27 projects since we’ve started working together. Those connectors have been used by 461 of our customers." – CTO, SaaS Enterprise Provider

Flat Rock Technology created an e-commerce website for a travel bicycle retailer. They continue to maintain the website with various updates. The client prides the team on their professionalism. 

"There is a high degree of professionalism in the team, and they always go the extra mile to complete a task. By opening up new channels, we have increased our sales revenue opportunities exponentially." – Head of Digital Technology, Travel Bicycle Retailer

An online history encyclopedia hired Geeks to build a web app for extracting content from other websites. The client's key challenge was ensuring that the web app could handle a high volume of data. Geeks developed custom software featuring a user-friendly frontend and a backend capable of extracting significant amounts of data. Finally, Geeks created a JavaScript library that the client can sell to other businesses. The client appreciated Geeks' creativity and innovation.

"Our visualization engine can generally handle ten times more data and the average JavaScript library. We’ve had no problems with the stability of their code. The server has always been perfect." - Co-Founder, Online History Encyclopedia

 Ideamotive developed management software to adapt to the client's rapid growth. Ideamotive automated many of the client's operations, like task assignments and document generation.

"They performed perfectly. They make sure they understand us and that we understand them." — Co-Founder, Real Estate Drafting Firm

One of Innovify’s clients, an on-demand delivery platform, wanted to streamline how merchants and businesses placed orders and how they assigned drivers. Innovify developed an Android app and website and helped with marketing and strategy.

“I have worked with a couple of these companies before, but they haven’t been as process-oriented as Innovify. They have good processes in place and everything was good for me.” – Founder, Logistics Company

Intechnic built a cloud-based management system for a trailer manufacturer. The system logs and stores company data for the manufacturer to use to streamline their operations. The collaboration is ongoing. Intechnic is currently working on building new modules for different functions. The client feels that the relationship between them is strong. 

"Our working relationship is highly effective. We consider them more as a business partner than that of a supplier-customer relationship. We can call them and ask for revisions or tweaks in the system, and they'll go ahead and do it. They also give us many considerations before we do that." – Director of Environmental Health & Safety, Trailer Manufacturer 

Intellectsoft created an e-commerce app with matching backend infrastructure, then integrated it into the client’s blockchain technology. Transforming the given creative demands into a satisfactory product under a strenuous deadline was deemed impressive, as were their communication skills and determination.

“We've given them a challenge, and they've met it, which is why Intellectsoft has become our leading service provider for technology development.” – Program Manager, Holding Company

Inviqa provided full-cycle web development for a holding company. They created over 50 flagship sites for different products using Magento, WordPress, and Drupal. The websites were responsive, e-commerce ready, and consistent with the products' respective brands.

"We've gone from having a skeletal technical architecture that supported one or two brands to delivering 10 to 12 brands, and more than 60 websites over the course of these three years. It's a big feat that they've managed to deliver." – Head of Digital Solutions, Global Holding Company

A global media company hired Isotoma to develop a solution for distributing video content to markets with minimal internet connectivity and bandwidth. Isotoma developed front- and backend of a cloud-based video platform. The proof of concept prototype was then tested by potential customers. The client appreciated that Isotoma completed two sprints ahead of schedule.

"Product reception has been very positive so far. Potential customers who’ve seen the platform say it’s exactly what they’re looking for." - Director, Global Media Compnay

Itransition was hired by another development firm to collaborate on a project for a tourism company. They migrated 44 websites into one e-commerce platform, Magento.

“They have a good talent pool; they’ve been able to find the right individuals. Everyone they have found who has worked with us has approached the project as though they understand the bigger picture. They’re not just coding for a paycheck.” – Director, Development Company

JustCoded worked with a community of creative agencies to provide tech and development services including custom-built projects, loan application processes, and API integrations. The main project JustCoded worked on was developing a community platform for a company using WordPress. This project included designing filters for over 1,000 pages of content and developing a strong search functionality for the site. The initiative ended up drawing over 1,000 customers within 6 months, well past the original goal of 100 clients in in 3 months.

"When I started working with them, everything began running smoothly. We did a little test project, and I thought it was brilliant. The cost-to-value ratio was great as well. I can think of 25 companies I’ve worked with in different countries, but none delivered like JustCoded did. I’m still getting the same feedback from people I’ve introduced them to, which is great." – Managing Director, Community of Creative Agencies

Magora developed two apps and provided a range of services to a conference organizer, including web and graphic design, full-stack development, and database maintenance and development. The client appreciated Magora's expertise, timeliness, and overall efficiency in project communications and completion.

“I would say they are the best outsourced firm we’ve ever worked with. Their project management skills are great – very transparent and very responsive to communication about fixes being urgent.” – Founder, IT Conference Organizer

Multi-Programming Solutions designed a website for a software development company. They designed the site from scratch using WordPress, and prioritized administrator accessibility by open sourcing it. Additionally, they developed graphics for the client and fixed any remaining bugs in the website so that it was both functional and attractive, much to the satisfaction of the client.

“We needed the website to look great, which was a success given that the platform has received considerable positive feedback. Clients have found the site to be informative and easy to use.” – COO, Software Development Company  

A prominent mobile game developer partnered with Opus Online to design and develop their flagship consumer-facing website. Opus had originally provided content management solutions through subcontracting. When the client needed a new website, they decided to hire them directly. The team delivered a highly customized content management system that prioritized straightforward navigation and interactive content. The client was pleased both with the quality of the work and communication processes, noting their flexibility for both in-person meetings and Skype calls. This partnership has helped both companies grow considerably.

"I would not even talk to a vendor that didn't provide the level of quality found in Opus Online. I'm very picky in terms of companies that I work with. They met my expectations in this sense." - IT Manager, Mobile Game Developer

A fitness club hired Softwire for several projects after a successful website redesign. Softwire redesigned the client's booking system based on PHP and MySQL. Softwire then created a corresponding mobile app for booking. They also provide general maintenance and support, advise the client on branding and lead generation, and develop any custom software.

" Their mobile app, connected to the booking system, reduced the number of customers booking through our receptionists from 75% to 5% and allowed customers to easily schedule courses. Their stabilization to our main site helps bring in new members all the time. They cut down a significant amount of labor cost and continue to improve the membership experience." -IT Director, Fitness Club