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
4 Companies-Rankings updated: September 12, 2026
DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.
Apptension helps brands, investors and innovators build their digital products.
Apptension is a creative product studio focused on crafting innovative experiences and delivering cutting-edge tech to our partners.We work with founders, investors, and creative agencies to help them bring uncommon ideas to the market. Among our clients - plenty of early-stage startups, as well as...
Top Services:
Mobile App Development
Software Development
eCommerce Development
VR/AR
Product Design
Show more
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$58/hr
Portfolios Count
30 Projects Listed
Apptension Services
Mobile App Development
Software Development
eCommerce Development
VR/AR
Product Design
Web Design
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Heineken
Netflix
Uber
Spotify
Universal
mTab
LESS
Viu
Hyper
PepTalk
Data sourced from the agency's DesignRush profile
Apptension Reviews & Testimonials
Undisclosed Software Engineering Manager at Cannabis Company
4.8★
Web Development Review from Undisclosed
Amidst a considerable range of vendors that took part in the official RFP process, Apptension stood out. Its proposal resonated seamlessly with Cannabis Company's prerequisites, leading the client to entrust their project to Apptension's proficient team of front-end developers. The objective was to develop a front-end solution for an internal business management tool, and the client is optimistic about the journey ahead with Apptension.
Bettina Huang Head of E-Commerce at Contemporary Art Retailer
5.0★
eCommerce Development Review from Bettina Huang
A contemporary art retailer initially enlisted Apptension to create its MVP, which was successfully launched in May 2021. The collaboration expanded into ongoing development and maintenance. The client also collaborated with Apptension on a distinct UX research project. Adhering to tight schedules and budget constraints, Apptension adeptly delivered a complex product, showcasing its commitment and capability. (Verified via email)
Sinead Catney Senior Interactive Producer at The Mill
4.7★
Software Development Review from Sinead Catney
The Mill asked Apptension to create a CMS that manages the client's app and website. The CMS handles diverse app components, including a huge gallery, localized content, and interactive user-focused copy. The product boasts eight engaging challenges and rewards, interactive gameplay, and a shareable filter. The platform integrates dynamic gallery and text elements, all managed through the CMS. Through the agency's ongoing maintenance support, the collaboration was extended. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
It's the best app to sell Multichannel on Shopify. Otherwise you would have to pay 2000$ for Shopify PLUS.Support and Features are Great! Thats a company you want to work with together as a B2B seller!Especially thank you Jonas!
James Batson Review from Google
5.0★
James Batson's Review Sourced from Google
Great company with excellent customer service. Helped us solve an issue on our Magento 2 website, highly recommend to anyone looking for Magento plugins or development.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Blending top-notch branding, development, and advertising components, NexusBond offers holistic solutions tailored for discerning clientele. Explore the possibilities of what we can achieve together...
Top Services:
Software Development
Mobile App Development
Web Development
Web Design
WordPress Website Design
Show more
Location
London, United Kingdom
Number of Employees
Under 49
Portfolios Count
1 Project Listed
NexusBond Services
Software Development
Mobile App Development
Web Development
Web Design
WordPress Website Design
eCommerce Development
AI Development
CRM Consulting
ERP Consulting
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
William Hill
Ladbrokes Coral
Transense
Data sourced from the agency's DesignRush profile
NexusBond Reviews & Testimonials
Louise Hobbs Review from Google
5.0★
Louise Hobbs's Review Sourced from Google
NexusBond built our new website as our current one was extremely outdated. Marco and the team are brilliant to work with. Before, during and after the website set up. The communication has been efficient and they are always very helpful and approachable.
Alma 1938 Review from Google
5.0★
Alma 1938's Review Sourced from Google
Working with Marco and Guy has been fantastic. They are incredibly helpful and thorough. Their communication is clear and efficient and they implement changes and updates with ease. It has been an absolute treat to work with NexusBond.
Alison Keane Review from Google
4.0★
Alison Keane's Review Sourced from Google
I am currently working on a new website with Nexus and have found the team to be very supportive. Guy put my mind at rest from the outset, by investing time initially in scoping out the project, which gave me confidence in the budget. .Our account mannager Marco was very responsive and patient throughout the process,, and is extremely knowledgeable.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We are one of the leading digital marketing agency in London, helping small and big businesses in all industries achieve their goals. We are experts in providing customized digital marketing solutions. Were a young, dynamic staff member who wants to work as an extension of your company...
Top Services:
SEO
Social Media Marketing
Web Design
Web Development
PPC
Show more
Location
London, United Kingdom
Number of Employees
50 - 99
Average Hourly Rate
$20/hr
Minimal Budget
$1,000 - $10,000
Ranktix Services
SEO
Social Media Marketing
Web Design
Web Development
PPC
Graphic Design
Creative Services
Software Development
Digital Marketing
Content Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts