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
8 Companies-Rankings updated: August 19, 2026
Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.
Dev Technosys is an ISO9001:2015-certified software development company founded in 2010, offering comprehensive IT solutions including custom web and mobile development, IoT, ERP/CRM, on-demand apps, and e-commerce platforms. The firm delivers tailored engineering services to clients in over 70 countries...
Location
London, United Kingdom
Number of Employees
100 - 249
Average Hourly Rate
$20/hr
Portfolios Count
16 Projects Listed
Dev Technosys Services
Mobile App Development
Software Development
Web Development
Web Design
eCommerce Development
Blockchain
AI Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Nike
johnson and johnson
Handy
Whirlpool
RAX Ceramics
pfizer
Jardines
Data sourced from the agency's DesignRush profile
Dev Technosys Reviews & Testimonials
Patrick Gilbert CEO at quicklyheal
5.0★
Mobile App Development Review from Patrick Gilbert
The UX and development work provided by Dev Technosys has helped to establish this new company. The apps aren’t live yet, but all four prototypes will be developed and launched. Senior internal stakeholders were pleased with Dev Technosys’s high-caliber deliverables. Flexible, receptive, and accommodating. Dev Technosys took great care in building a quality platform that fits all requirements.
Delson Baker CEO at Tutorias.co
5.0★
Mobile App Development Review from Delson Baker
The app is almost going to live and has been very useful throughout the COVID-19 pandemic. Dev Technosys did an excellent job enhancing the look and feel of the platform. They brought several ideas to the project and were flexible as requirements changed.We worked closely with one of their lead project managers and he liaised with the developers and creative team on the UI aspect. He did a fantastic job scheduling meetings between our team and the design team when needed. He also helped us com
Kenneth Wilson CEO at Learning bull
5.0★
Mobile App Development Review from Kenneth Wilson
Dev Technosys's efforts have had a significant impact on the business overall, streamlining the video process by making it easier to find exactly what user wat to see. Project is all about the learning via videos. In addition to the quality of their designs, their team is also very proactive and collaborative to work with overall. Though not yet complete, their work surpasses all expectations and project management has been seamless.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
At ScaleMeUp, we are experts in UX with years of experience and exclusive methodologies. We craft innovative solutions for complex products, using data-driven testing to validate every decision. Our approach ensures that every UX solution is not just intuitive but also highly effective.Beyond UX, we have...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
ScaleMeUp Services
UI/UX Design
Web Design
Web Development
Logo Design
Creative Services
Software Development
eCommerce Development
Mobile App Development
CRM Consulting
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Gamingtec
iSettle
MegaModz
Ermitage Jewelers
Mr. Simon
The Strength Room
Next Challenge
Skyhigh Toronto
Restaurant Design 360
ESCU
Data sourced from the agency's DesignRush profile
ScaleMeUp Reviews & Testimonials
Kosta Savchuk Founder at Skyhigh Toronto
5.0★
Web Development Review from Kosta Savchuk
Great service! Fast, quality and budget-friendly work! Recommended for any web needs!
Anna Timenko Head of Recruitment at Nextchallenge
5.0★
Web Development Review from Anna Timenko
ScaleMeUp handled the full technical development of nextchallenge.com based on design provided. They built the front and back end, ensured mobile responsiveness, and managed deployment.The website launched smoothly, improved our online presence, and quickly attracted new users. I was especially impressed by their speed and precision delivering the project quickly with minimal edits.
Olga Valodze CFO / CIO at Georgia Facility Services
5.0★
Web Development Review from Olga Valodze
ScaleMeUp built a complete website for our company, with each page designed as a standalone landing page optimized for mobile, conversion-focused, and tailored specifically to the U.S. market. They also helped us improve overall conversion rates and integrated the site with key third-party tools to support our operations.In addition to the website, ScaleMeUp developed a multi-role iOS app that continues to evolve. Thanks to this solution, we are now able to effectively track our employees work and have fully automated our payroll process saving time and significantly reducing administrative overhead.Throughout the project, we've also worked together on optimizing user flows and integrating new features that support our business goals.We are satisfied with our collaboration with ScaleMeUp. There were challenging moments, as in any complex project, but we always managed to find a compromise and continue working together successfully to this day. I can confidently recommend ScaleMeUp as a reliable and proven partner, capable of solving even the most demanding technical and business challenges.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Digital Heroes is a full-stack Shopify development and digital marketing agency founded in 2017. We specialize in building high-converting ecommerce stores, Shopify custom development, web design, SEO, and brand growth strategies. With 2,000+ stores built and $10M+ in client revenue generated, we are a...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$25/hr
Minimal Budget
Under $1,000
Portfolios Count
23 Projects Listed
Digital Heroes Services
Software Development
Web Development
Mobile App Development
WordPress Website Design
Branding
eCommerce
eCommerce Development
SEO
Web Design
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
EMANI Beauty
Rizz Pickleball
Evada UAE
JustDerma
Noble Paris
Neurvana Ohana
Big Game Sports
ToxVeto
Fresh Water Pool Supply
Panacheeza
Data sourced from the agency's DesignRush profile
Digital Heroes Reviews & Testimonials
Brent Beardslee (Belish) Review from Google
5.0★
Brent Beardslee (Belish)'s Review Sourced from Google
A terrific comics and game store. Comics and Manga up front with Warhammer 40k, Magic, D&D and others in the back. They have a good selection od Warhammer 40k models as well as Age of Sigmar.
Sylvie Dale Review from Google
5.0★
Sylvie Dale's Review Sourced from Google
Stopped in for some Magic card boosters and was greeted warmly by all staff and the owner, who gave me a rundown of upcoming gaming events at the store. I was blown away by the complex schedule they keep - free play, draft play events, and more. The owner gives freely of his time to provide those events, and it's clear he cares.
Perry Review from Google
1.0★
Perry's Review Sourced from Google
Extremely judgemental, sad, employees. I recently moved to town and came in after work in my business attire. After getting a confused look from the associate up front, (not even a greeting). I started browsing, but everytime I looked up, I was being stared at which made me slightly uncomfortable. I moved towards the back and an associate there said hello, we had a short chat about comics and trading cards but they were rude to a younger customer that came in, it was unwarranted and I'm assuming either this is the employee's normal behavior or an elitist owner. I also couldn't help but wonder if the associate was under some sort of influence. After noticing the trading card prices are exponentially higher than I'm used to seeing in bigger cities, where that sort of pricing would make more sense; I took my leave not purchasing anything feeling underwhelmed. As I passed the associate up front, they still did nothing but continue to stare. Are they not used to the professional community? The store is tidy and organized but cluttered and the atmosphere/vibe is cold. Also not much of a variety for a hobby store. I would much rather take the trip to Milton Freewater to the hobby store there or even Gamestop would be a better choice. I do not see myself returning in the future.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
At Deshine, we imagine a world where every entrepreneur, creator, or visionary can see their business flourishwhere campaigns and ideas arent just launched but grow and succeed over time...
Location
London, United Kingdom
Number of Employees
Under 49
Deshine Services
Software Development
Branding
Web Design
WordPress Website Design
Design Services
Social Media Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Era Biz Solutions stands as a distinguished offshore software development company, renowned for its expertise in UI design and web design. With a focus on delivering high-quality solutions, we cater to a diverse clientele, ensuring seamless integration of innovative design elements into cutting-edge software...
Location
London, United Kingdom
Number of Employees
50 - 99
Era Biz Solutions Services
Software Development
Cloud Consulting
Staff Augmentation
Mobile App Development
Web Development
DevOps Consulting
IoT
Managed Services
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Sri Lanka Government (Samurdhi Department)
SASIP Institute - Sri Lanka
Vascari UK
Data sourced from the agency's DesignRush profile
Era Biz Solutions Reviews & Testimonials
Rizvi R Review from Google
5.0★
Rizvi R's Review Sourced from Google
As a current Senior IOS Engineer at Erabiz Solutions, I can state with confidence this is one of the best places to work in the tech industry.We use the newest technologies, including Swift, SwiftUI, and Combine, to make sure our apps are cutting-edge and highly functional. There is a significant emphasis on code quality, best practices, and professional development, and the leadership team is encouraging. The team atmosphere is incredibly motivating, and the work-life balance is superb.
Vansh Raj Review from Google
5.0★
Vansh Raj's Review Sourced from Google
If you're looking to hire dedicated developers for BigCommerce eCommerce solutions, look no further than Era Biz Solutions. They have some of the most experienced developers I've ever worked with.I initially needed a development team for my BigCommerce website, and I was blown away by their expertise in BigCommerce. They even introduced Catalyst, a fully functional storefront, and explained how it helps create personalized, SEO-friendly experiences.I highly recommend Era Biz Solutions if you're searching for the best BigCommerce solutions provider. Trust me, you won't be disappointed.
Nirodha prasad Review from Google
5.0★
Nirodha prasad's Review Sourced from Google
I live in Australia and was looking to hire dedicated developers from a reliable software development company in Sri Lanka to work on my latest eCommerce project using the BigCommerce platform. After thorough research, I chose Era Biz Solutions, and they exceeded all my expectations.From the initial consultation to the final launch, the team guided us through every step with exceptional professionalism and care. Their expertise in eCommerce development and seamless BigCommerce integrations made a significant difference in the success of our project.If you're looking for top-notch developers to bring your vision to life, especially for BigCommerce solutions, look no further than Era Biz Solutions. Special thanks to Isuru and the entire team for their dedication and outstanding support. Highly recommended!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Creating Mobile Apps That Digitally Transform Business
Sugar Rush is a Mobile App Agency that provides mobile app development services to clients in the UK, Ireland, Europe, and the US. They have received recognition as the "UK App Agency of the Year" and have won 'App of The Year' awards for three consecutive years in Northern Ireland...
Location
London, United Kingdom
Number of Employees
Under 49
Minimal Budget
$50,000 & Up
Portfolios Count
1 Project Listed
Sugar Rush Services
Mobile App Development
Web Design
Software Development
VR/AR
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
BUNZL
BBC
Radio Times
TopGear
Game of Thrones
Stryker
Olympus
Angling Direct
Data sourced from the agency's DesignRush profile
Sugar Rush Reviews & Testimonials
Dean Lyttle Review from Google
5.0★
Dean Lyttle's Review Sourced from Google
On behalf of AES Global Ltd -Moving our app development locally was a key focus for us in 2020. After extensive research into local companies and speaking to them all Ali, Danielle and the whole team at Sugar Rush most definitely came out on top.Their company culture and attention to detail was what caught our eye first which was followed closely on their project management skills.We are currently working on our 4th project together and i am still amazed with their dedication to learn our product inside out so they truly understand how it should function with the app and provide new ideas and better flows than what we had before.We have dealt with a large number of different colleagues within Sugar Rush and every single one of them are a credit to the company and provide a brilliant customer experience.Here is to the last 2 year partnership with many more years to follow. Thank you Sugar Rush for your partnership and helping to modernise and optimise our app platform.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
EGGsist was born with the goal of advising companies who want to approach digitalization in China and those who want to target the Chinese audience. With offices in Hong Kong, Milan and London, Eggsist provides its clients a 360 degrees approach guiding them towards the right technology, digital marketing &...
Location
London, United Kingdom
Number of Employees
Under 49
Average Hourly Rate
$75/hr
Minimal Budget
$1,000 - $10,000
EGGsist Services
Digital Strategy
Digital Services
eCommerce Development
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts