What makes a good software development company?

Good software development companies are curious about the problem you’re solving, have the technical skills to execute using desired languages and tech, communication skills (especially if working with a remote team), and adaptability. Make sure to look for these qualities in candidate portfolios and during the interview stage.

What are the 3 types of software?

Generally speaking, the three types of software are system software, utility software, and application software. Application software is the most common and recognizable type, involving a package that performs a singular function for users. Utility software is created to maintain the functions of a computer, and system software runs a computer’s hardware and software programs.

What is a software development company?

A software development company is a specialized developer that helps businesses build and deploy custom solutions. These companies typically provide services such as software testing, programming, and maintenance. By partnering with a software development company, you can benefit from their extensive teams filled with experienced professionals who are proficient in all sorts of programming languages and technologies. Software development companies also deliver frameworks and other components essential to building bespoke tools.

Can I work with a software development company on one-time projects, or only for longer-term engagements?

It is possible to work with software development companies on one-time projects as well as longer-term engagements; however, the ROI (return on investment) may vary depending on the type of project. Shorter projects tend to produce results more quickly than long-term projects but may not yield the same significant returns over time. Longer engagement periods allow for more complex development projects for more extensive needs.

Top 30 Software Development Companies in London

The Best of April 2024

The right custom software can give a struggling or growing business the edge it needs. Different kinds of custom software exist for all kinds of functions, such as enterprise resource planning solutions, customer relationship management systems, and content management systems.

Jump to Most Reviewed Companies

List of the Best London Software Development Firms

1

Andersen Inc.
(119 Reviews) 4.9
- Timeliness
  4.8
- Service Excellence
  4.9
- Value
  4.6
- Would Recommend
  4.9
- $50,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.

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Clients
- Samsung
- Johnson & Johnson
- GlobePayroll
- Siemens
Industries
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2

Itransition
(39 Reviews) 4.9
- Timeliness
  4.9
- Service Excellence
  4.9
- Value
  4.8
- Would Recommend
  5.0
- $25,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Founded in 1998 in Denver, Itransition now has multiple offices in the U.S., U.K., E.U., and locations in eastern Europe housing more than 2,200 employees. They help power enterprises and SMBs globally with their digital solutions in the areas of business process automation, AI, data analytics, customer experience, and others.

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Clients
- Expedia
- Xerox
- Toyota
- eBay
Industries
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3

Synetec
(17 Reviews) 4.9
- Timeliness
  4.8
- Service Excellence
  4.9
- Value
  4.7
- Would Recommend
  4.9
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Synetec is a software development consultancy headquartered in London. They were established in 2009, and have 26 employees. Synetec's range of services includes cloud, CRM, and business intelligence consulting, software integration, web development, custom software development, and more.

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Clients
- Argentex
- Genesis
- Jabre Capital Partners
- Zebedee Capital Partners LLP
Industries
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4

CM System Designs
(9 Reviews) 5.0
- Timeliness
  4.9
- Service Excellence
  5.0
- Value
  4.8
- Would Recommend
  5.0
- $10,000+
- 2 - 9 employees
- London, United Kingdom
CM System Designs is a software company based in Dorking, England, and founded in 2017. Their team of more than two offers custom software and web development solutions for small and mid-market firms alike.

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Clients
- PizzaExpress
Industries
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5

Hiyield
(13 Reviews) 5.0
- Timeliness
  4.8
- Service Excellence
  5.0
- Value
  4.8
- Would Recommend
  5.0
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Hiyield is a small website development firm located in St. Austell, United Kingdom. Launched in 2018, the team focuses on web development, custom software development, ux/ui design, application management & support, and more.

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Industries
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Featured providers
- Innowise
  (56 Reviews) 4.9
  - Timeliness
    4.8
  - Service Excellence
    4.9
  - Value
    4.7
  - Would Recommend
    4.9
  - $10,000+
  - 1,000 - 9,999 employees
  - Warszawa, Poland
  Innowise Group is a custom software development company based in Warsaw, Poland. With more than 1000 specialists on board and 600 projects completed, they use cutting-edge technologies to transform their client's businesses. They are experts in designing and developing tech solutions that will help your company enhance its processes and increase customer satisfaction, thanks to their 15+ years of experience and extensive expertise. They create custom software to fit your unique requirements in terms of timeline, budget, and use case. They handle every step of the development process, from product concept and development to testing, deployment, and support. In addition to building custom software, we also excel in UX/UI design, IT strategy consulting, and staff augmentation.
  
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- Simform
  (58 Reviews) 4.9
  - Timeliness
    4.8
  - Service Excellence
    4.9
  - Value
    4.8
  - Would Recommend
    4.8
  - $25,000+
  - 1,000 - 9,999 employees
  - Orlando, FL
  Simform is a custom software development company founded in 2010. They have helped organizations ranging from startups, Fortune 500 companies, and WHO-backed NGOs. The team of 250+ delivers digital solutions for their clients and offer artificial intelligence services, API integration, dedicated software development team, and software testing services.
  
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  Industries
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- Dualboot Partners
  (42 Reviews) 4.9
  - Timeliness
    4.8
  - Service Excellence
    4.9
  - Value
    4.8
  - Would Recommend
    5.0
  - $75,000+
  - 250 - 999 employees
  - Charlotte, NC
  Dualboot Partners is a product design and software engineering company founded in Raleigh, N.C. in 2018 with over 50 professionals. They offer custom software development and application testing solutions for various clients.
  
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  Industries
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6

Vention
(72 Reviews) 4.9
- Timeliness
  4.8
- Service Excellence
  4.9
- Value
  4.7
- Would Recommend
  5.0
- $25,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Headquartered in New York, Vention is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, Vention's talent pool includes 3500+ engineers with experience in all of the latest technologies.

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Clients
- IBM
- PayPal
- IC Markets
- StoneX
Industries
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7

Infinum
(47 Reviews) 4.8
- Timeliness
  4.6
- Service Excellence
  4.8
- Value
  4.5
- Would Recommend
  4.9
- $25,000+
- 250 - 999 employees
- London, United Kingdom
Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.

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Clients
- Philips
- Nike
- Porsche
- Coca-Cola
Industries
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Featured providers
- ObjectStyle
  (3 Reviews) 5.0
  - Timeliness
    5.0
  - Service Excellence
    5.0
  - Value
    4.7
  - Would Recommend
    5.0
  - $10,000+
  - 50 - 249 employees
  - Fairfield, CT
  ObjectStyle is a custom software development agency founded in the U.S. in 2002. The Warsaw-based Polish subsidiary was established in 2018 and grew significantly ever since. The company specializes in architecting software systems from scratch, modernizing legacy platforms, IT consulting, and IT team augmentation. ObjectStyle works with large and small companies, from startups to Blue Chip corporations, offering an excellent price-to-quality ratio with its services.
  
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  Industries
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- Darly Solutions
  (20 Reviews) 5.0
  - Timeliness
    5.0
  - Service Excellence
    5.0
  - Value
    5.0
  - Would Recommend
    5.0
  - $1,000+
  - 50 - 249 employees
  - Warszawa, Poland
  LLC Darly Solutions is a Kharkiv, Ukraine-based web development company. The small firm was established in 2017. Their services include web development, ux/ui design, and mobile app development.
  
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  Industries
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- Matrix Media Solutions (P) Ltd.
  (30 Reviews) 4.9
  - Timeliness
    4.7
  - Service Excellence
    4.9
  - Value
    4.7
  - Would Recommend
    4.9
  - $1,000+
  - 50 - 249 employees
  - Kolkata, India
  Matrix Media Solutions (P) Ltd is a digital development and marketing company based in Kolkata, India. The company, founded in 2003, has over 150 employees and provides a wide range of digital services that include application testing, AI, custom software development, web design & development, mobile app development, SEO, PPC, and social media marketing services to various companies.
  
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  Industries
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8

N-iX
(32 Reviews) 4.8
- Timeliness
  4.7
- Service Excellence
  4.8
- Value
  4.3
- Would Recommend
  4.9
- $100,000+
- 1,000 - 9,999 employees
- London, United Kingdom
N-iX is a global software solutions and engineering services company that helps the world’s leading organizations turn challenges into lasting business value, operational efficiency, and revenue growth using modern technology. With over 2,000 professionals in 25 countries across Europe and the Americas, N-iX offers expert solutions in cloud, data analytics, embedded software, IoT, AI, machine learning, and other tech domains. Being in business for over two decades, we have worked with dozens of industry-leading enterprises and Fortune 500 companies, creating value across a wide variety of sectors, including finance, manufacturing, supply chain, retail, and more.

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Clients
- Bosch
- Siemens
- Ebay
- Total Energies
Industries
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9

Imaginary Cloud
(34 Reviews) 4.9
- Timeliness
  4.9
- Service Excellence
  4.9
- Value
  4.6
- Would Recommend
  4.9
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Imaginary Cloud is a Web, Mobile and AI Software Development and UX/UI Design Company with offices in the UK, US and Portugal. In the last 11 years they have helped build and scale more than 300 applications, from Start-ups, Scale-ups to Enterprises, winning several global awards. They offer a comprehensive skill set of developers, data scientists and designers coupled with a streamlined agile process.

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Clients
- Nokia
- Sage
- Ernst & Young
- BNP Paribas
Industries
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10

Rootquotient
(36 Reviews) 4.9
- Timeliness
  4.9
- Service Excellence
  4.9
- Value
  4.9
- Would Recommend
  5.0
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Rootquotient Technologies is a Custom Software Development agency with offices in London, Toronto and India Since 2019, the team of 170 has specialized in Custom made Web Application Development, Cross-platform Mobile App Development, Artificial Intelligence, Block chain, Machine Learning and Business Intelligence solutions.

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Clients
- Siemens Gamesa
- Verizon
- Nokia
- L&T
Industries
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11

Digiryte
(46 Reviews) 4.8
- Timeliness
  4.6
- Service Excellence
  4.8
- Value
  4.9
- Would Recommend
  4.9
- $100,000+
- 50 - 249 employees
- London, United Kingdom
Digiryte is a web and mobile app development company based in Manchester, United Kingdom with another UK office in Preston. Since 2015, their team of 28 has been specializing in mobile app development, custom software development, and web development for midmarket clients.

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Clients
- NHS
- Channel 4
- Close Brothers
- Hinch Property Management
Industries
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12

ELEKS
(29 Reviews) 4.8
- Timeliness
  4.7
- Service Excellence
  4.8
- Value
  4.6
- Would Recommend
  4.9
- $50,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Founded in 1991, ELEKS is a provider of software development, product design and technology advisory services. They offer cooperation models that fit the goals, resources and timelines of Fortune 500 companies, large enterprises, and small businesses. ELEKS has more than 2,000 specialists and 17 offices on three continents to serve their clients globally.

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Clients
- Eagle Investment Systems (a subsidiary of BNY Mellon)
- Autodesk
- ESET
- TAIT
Industries
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Featured providers
- Octobot
  (29 Reviews) 4.9
  - Timeliness
    4.8
  - Service Excellence
    4.9
  - Value
    4.8
  - Would Recommend
    4.9
  - $50,000+
  - 50 - 249 employees
  - Montevideo, Uruguay
  Octobot is a software consultancy headquartered in Montevideo, Uruguay. Octobot was founded in 2014 with the objective of creating innovative digital solutions and transforming their client's ideas into products. They have a team of over 100 composed of designers, engineers, and innovators who specialize in mobile app development, web development, and custom software development for the healthcare, education, and business services industries.
  
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  Industries
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13

Tkxel
(50 Reviews) 4.9
- Timeliness
  4.9
- Service Excellence
  4.9
- Value
  4.8
- Would Recommend
  4.9
- $10,000+
- 250 - 999 employees
- London, United Kingdom
TkXel is a mobile app and web development company founded in 2007. With its headquarters in Reston, Va., and an office in Lahore, Pakistan, they have a team of 318 employees. Their services include mobile app development, web development, and custom software development. They primarily serve small and midmarket clients.

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Clients
- ABB
- Nokia
- Groupon
- TELUS
Industries
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14

Indi IT Solutions
(14 Reviews) 5.0
- Timeliness
  5.0
- Service Excellence
  5.0
- Value
  5.0
- Would Recommend
  5.0
- $50,000+
- 50 - 249 employees
- London, United Kingdom
Indi IT Solutions is a custom software development firm. They are located in Sahibzada Ajit Singh Nagar, India and have a midsize team. Their services include custom software development, mobile app development, search engine optimization, and e-commerce development.

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Industries
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15

PioGroup Education Software
(25 Reviews) 5.0
- Timeliness
  5.0
- Service Excellence
  5.0
- Value
  5.0
- Would Recommend
  5.0
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 2010, PioGroup Software is a development company based in Kharkiv, Ukraine. They have a small team of fewer than 50 people, and they primarily work with small businesses.

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Clients
- Moving Pipe
Industries
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16

dotcode
(23 Reviews) 5.0
- Timeliness
  5.0
- Service Excellence
  5.0
- Value
  5.0
- Would Recommend
  5.0
- $25,000+
- 50 - 249 employees
- London, United Kingdom
DotCode is a design and development company based in Lviv, Ukraine, and founded in 2018. Their team of more than 10 provides web development, web design, and e-commerce development solutions for clients in the fields of hospitality, advertising, and financial services.

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Clients
- The Venue Report
- Shepard Health
- FlyJets
- Thrive Card
Industries
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17

Coreblue
(22 Reviews) 5.0
- Timeliness
  5.0
- Service Excellence
  5.0
- Value
  4.9
- Would Recommend
  5.0
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Core Blue Ltd is a software engineering company based in London with an office in Plymouth, U.K. The company, founded in 2015, has a team of less than ten that provides custom software development, mobile app development, web development, and IoT development services to various companies.

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Clients
- Bank of Kigali
- Kuoni
- PayPoint
- SAP
Industries
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18

GoodCore Software
(30 Reviews) 5.0
- Timeliness
  5.0
- Service Excellence
  5.0
- Value
  5.0
- Would Recommend
  5.0
- $25,000+
- 50 - 249 employees
- Croydon, United Kingdom
Founded in 2005 and headquartered in Croydon, UK, GoodCore Software specializes in bespoke software development. WIth a team of about 50 employees, the company offers web and mobile app development to startups and established businesses alike. Engagement options include fixed- cost and dedicated development teams.

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Clients
- Printed Music Licensing
- Weight Loss Resources
- GC Business Finance
- XTracked Deliveries
Industries
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19

IceFyre Solutions
(5 Reviews) 5.0
- Timeliness
  5.0
- Service Excellence
  5.0
- Value
  5.0
- Would Recommend
  5.0
- $10,000+
- 10 - 49 employees
- London, United Kingdom
In London, United Kingdom and Pančevo, Serbia, IceFyre Solutions is a web development firm. The small agency was launched in 2017. Their team offers web development, mobile app development, and Artificial Intelligence.
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Clients
- Fincore LTD
- PixelFaerie Limited
- RedPanda Software
- Argility Technology Group
Industries
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20

Angry Nerds
(20 Reviews) 4.9
- Timeliness
  4.9
- Service Excellence
  4.9
- Value
  4.8
- Would Recommend
  4.9
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Angry Nerds is a software development house based on Wroclaw, Poland. Established in 2015, they have more than 60 employees who provide app development services for global clients consisting mostly of small and mid-market firms. Their services include custom software development, web development, and mobile development for Android and iOS. They also offer staff augmentation.

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Clients
- Homedot app
- Cats and Dogs app
- NeoTaste
- Epaka
Industries
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21

thoughtbot
(31 Reviews) 4.9
- Timeliness
  4.8
- Service Excellence
  4.9
- Value
  4.6
- Would Recommend
  5.0
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Thoughtbot is a web and mobile app development company based in Boston, MA with offices in Austin, San Francisco, New York, Raleigh, Washington D.C, and London. Since 2003, this 50+ team has delivered empowering digital solutions to enterprise-level and small companies alike.

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Clients
- Health Match 360
- JoyDrive
- Real Simple Energy
- LOLA
Industries
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22

Vega IT
(22 Reviews) 4.8
- Timeliness
  4.7
- Service Excellence
  4.8
- Value
  4.7
- Would Recommend
  4.9
- $10,000+
- 250 - 999 employees
- London, United Kingdom
Vega IT is a Software company in Serbia. Founded in 2008, they have 750+ engineers with experience in FinTech, HealthTech, PharmaTech, Transportation & logistics, FoodTech, and Enterprise blockchain. Their services include Custom software, Mobile App Development, Application Testing, E-commerce and Web development.

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23

Magora
(64 Reviews) 4.7
- Timeliness
  4.6
- Service Excellence
  4.7
- Value
  4.5
- Would Recommend
  4.7
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 2010, Magora is a 50+ team of web and mobile app designers and developers based in London. Whether it’s B2B or B2C, the firm creates bespoke software that integrates with existing business solutions to enable user-centered interaction and scalable software architecture.

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Clients
- Danone
- Unilever
- Toyota
- Royal College of Art
Industries
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24

NashTech
(12 Reviews) 4.7
- Timeliness
  4.5
- Service Excellence
  4.7
- Value
  4.7
- Would Recommend
  4.8
- $100,000+
- 1,000 - 9,999 employees
- London, United Kingdom
NashTech is a large London, United Kingdom-based software development company. Established in 2000, the team specializes in custom software development, IT strategy consulting, and application testing.
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25

10Pearls
(33 Reviews) 4.9
- Timeliness
  4.8
- Service Excellence
  4.9
- Value
  4.7
- Would Recommend
  4.9
- $50,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Based in Vienna, VA, 10Pearls designs and maintains apps for various companies. The company and its nearly 350 employees have experience in cybersecurity, product development, and UX/UI design.

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Clients
- HughesNet
- Johnson & Johnson
- PayPal
- CocaCola
Industries
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26

Altkom Software & Consulting
(27 Reviews) 4.8
- Timeliness
  4.8
- Service Excellence
  4.8
- Value
  4.6
- Would Recommend
  4.8
- $25,000+
- 250 - 999 employees
- London, United Kingdom
Altkom Software & Consulting, founded in 1998, is a software development company headquartered in Warsaw, Poland, with an additional office in Krakow, Poland. They specialize in custom software development, web development, and application management & support. The company has 130+ employees who work with enterprise, mid-market, and small businesses. The businesses they serve are mostly in the financial services industry.

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Clients
- BNP Paribas
- AXA Insurance
- Santander
- Danone
Industries
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27

Appdrawn Software Development
(10 Reviews) 5.0
- Timeliness
  5.0
- Service Excellence
  5.0
- Value
  4.9
- Would Recommend
  5.0
- $25,000+
- 10 - 49 employees
- Watford, United Kingdom
AppDrawn is a software solutions company founded in 1999. Their headquarters are in London and they have a second office in Barcelona. Across these 2 locations, they have a team of a dozen staff that do custom software development, web development, and mobile app development for small and medium-size businesses.

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Clients
- Aspire
- BBC
- Infopoint
- Renteq
Industries
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28

Yojji LTD
(11 Reviews) 5.0
- Timeliness
  4.8
- Service Excellence
  5.0
- Value
  5.0
- Would Recommend
  5.0
- $100,000+
- 50 - 249 employees
- London, United Kingdom
Yojji is a software development firm based in London with an office in Kharkiv, Ukraine. The firm, founded in 2017, has more than 35 employees and provides custom software development, web development, mobile app development, web design, product design, and application testing services. Yojji serves small and larger-sized companies in various industries that include financial services, business services, and health care & medical.

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Clients
- Valapay LTD
- OSU LTD
- Mabbly
- Mrs Wordsmith Limited
Industries
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29

Journi
(3 Reviews) 5.0
- Timeliness
  5.0
- Service Excellence
  5.0
- Value
  5.0
- Would Recommend
  5.0
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Journi is a small software development firm. Headquartered in London, United Kingdom and Madrid, Spain, the agency was launched in 2023. Their services include custom software development, IT staff augmentation, web development, and enterprise app modernization.
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Industries
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30

Haefele Software
(10 Reviews) 4.9
- Timeliness
  4.8
- Service Excellence
  4.9
- Value
  4.8
- Would Recommend
  5.0
- $5,000+
- 50 - 249 employees
- London, United Kingdom
Haefele Software is an outsourced Microsoft software development company based in Cape Town, South Africa, with offices in Melbourne, Australia; Tampa, Florida; and London. The company, founded in 2006, has more than 50 employees and provides custom software development, IT strategy consulting, and IoT development services to enterprise and smaller-sized companies in various industries.

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Clients
- Tesco
Industries
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