Top IT Consultants & Companies in the United Kingdom
3,247 Companies
List of the Top IT Services Companies in the UK
Sponsored
-
Featured
What are Featured Providers?
$50,000+$50 - $99 / hr1,000 - 9,999Serves United KingdomServices provided
25% Custom Software Development21% Mobile App Development21% Web Development +3 services11% AI Consulting11% BI & Big Data Consulting & SI11% Enterprise App ModernizationSee all 37 projectsSigma Software Group is a versatile software development company offering a wide range of services, including web and mobile development, engineering support, and staff augmentation. The reviews indicate a strong emphasis on efficiency, collaboration, and alignment with client values. Approximately 80% of feedback highlights their punctuality and adaptability, while 60% commend their innovative approach and team integration. Overall, clients consistently express satisfaction with Sigma Software Group’s contributions to their projects.
Reviews mention Collaborative
The sentiment regarding collaboration with Sigma Software Group is overwhelmingly positive. Clients consistently noted the seamless integration of Sigma's team into their own, describing them as an extension of their organization. One client highlighted the "incredible relationships" built with Sigma's team members, while another emphasized that Sigma's team is "friendly, collaborative, and enjoyable to work with." Overall, clients appreciated Sigma's responsiveness and commitment to understanding their needs, fostering a strong collaborative environment.-
Staff Augmentation Services for Property Management Group
5.0 Apr 5, 2024Our partnership with Sigma Software Group is very strong and we hope to bring in more individuals from their team when we can. The team is friendly, collaborative, and enjoyable to work with.
Read Full Review -
Full Stack Dev Staff Augmentation for IT Services Company
5.0 May 16, 2022We have daily standups, and the team's participation, communication, and collaboration rate are super high from an engineering standpoint. They're also fully integrated into our environment — they feel like part of our team and not a separate entity.
Read Full Review -
Development Services for Tech Company
5.0 Oct 15, 2020We feel that Sigma is part of our company. This is due to the way that collaboration is made funny and engaging for everyone within the team.
Read Full Review -
SaaS Product Dev for Ad Tech Firm
4.5 Jan 10, 2017This kind of interpretation can't happen in a vacuum, but rather through the organic collaboration between coders, designers, and technologists acting as business visionaries.
Read Full Review -
Website Revamp & SEO for SaaS Advertising Platform
4.5 Dec 11, 2025They delivered on time, adapted to our needs, and our teams worked together seamlessly. The new site loads faster, performs better, and brings in more of the right visitors. Their mix of efficiency, creativity, and collaborative spirit made them stand out from the very beginning.
Read Full Review
Was this helpful?
0 of 1 reviews is 5 stars$50,000 – $199,999 avg. project costRead 1 Recent ReviewReviewed 1 time in the past 6 months
Recent client feedback on Sigma Software Group highlights their efficiency, creativity, and seamless collaboration in delivering a website redesign project. Clients reported measurable outcomes such as increased engagement, improved SEO, and higher qualified leads. While they appreciated the timely delivery and adaptability, some suggested a need for more proactive guidance on web best practices. Overall, sentiment towards Sigma Software Group remains highly positive, reflecting satisfaction with their services and outcomes.Was this helpful?
Industry Experience
Sigma Software Group has demonstrated significant expertise across various industries, including Advertising & Marketing, Aviation, Food & Beverage, Financial Services, Education, and more. Clients consistently highlight their strong project management skills, timely delivery, and adaptability to specific industry needs. In Advertising & Marketing, they excel in application development and integration, while in Financial Services and Aviation, their capacity for staff augmentation and compliance adherence is notable. Overall, feedback is overwhelmingly positive, indicating a strong fit for clients in technology-driven sectors seeking reliable partnerships.
Read All ReviewsSelect Industry to see insights
Other Industry Food & Beverage Information technology Financial services Education Logistics & Supply Chain Construction Arts, entertainment & music Software Sports IT Services Manufacturing Automotive Retail Real estate Design Healthcare Gambling Advertising & marketingWas this helpful?
More responsive than most other service providers
Get in TouchSigma Software Group is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
-
-
$5,000+$100 - $149 / hr1,000 - 9,999London, England
Services provided
25% AI Development25% Application Management & Support25% BI & Big Data Consulting & SI +1 service25% IT Strategy ConsultingReply is an artificial intelligence firm. They specialize in Artificial Intelligence and BI & big data consulting & SI and were founded in 1996.
Read moreSee All Locations (2)London, England
38 Grosvenor Gardens
London, England SW1W 0EB+44 (0) 207 730 6000
Was this helpful?
-
UndisclosedUndisclosed10 - 49Aberdeen, Scotland
Services provided
50% IT Managed Services50% IT Strategy ConsultingDynamic Edge Group is a small IT managed services and IT strategy consulting company launched in 2009. Their team offers IT managed services and IT strategy consulting.
Read more -
UndisclosedUndisclosed2 - 9Birmingham, England
Services provided
30% IT Strategy Consulting20% IT Managed Services10% Graphic Design +4 services10% Pay Per Click10% Social Media Marketing10% Web Design10% Web DevelopmentTechnowave IT Consultants is an IT strategy consulting company. They are in Birmingham, England, and their services include IT strategy consulting and IT managed services.
Read more -
UndisclosedUndisclosed50 - 249Edinburgh, Scotland
Services provided
40% AR/VR Development30% BI & Big Data Consulting & SI30% Cloud Consulting & SINCTech is an AR/VR development company. The Edinburgh, Scotland-based team offers AR/VR development and BI & big data consulting & SI.
Read more -
UndisclosedUndisclosed50 - 249Coleshill, England
Services provided
35% IT Managed Services30% IT Strategy Consulting18% HR Consulting +1 service17% RecruitingCertes, an IT managed services company, was launched in 1983. The team provides IT managed services and IT strategy consulting and is in Coleshill, England.
Read more -
UndisclosedUndisclosed2 - 9Newport, Wales
Services provided
35% IT Managed Services35% Web Design30% CybersecurityStock IT Ltd is a small IT managed services company founded in 2003. Their team provides IT managed services and Web Design.
Read more -
UndisclosedUndisclosed2 - 9Bolton, England
Services provided
70% IT Managed Services30% IT Strategy ConsultingIT managed services company Concept Management Consulting Ltd is headquartered in Bolton, England. They specialize in IT managed services and IT strategy consulting and were founded in 2007.
Read more -
UndisclosedUndisclosed1,000 - 9,999Glasgow, Scotland
Services provided
20% AI Development20% Application Testing20% BI & Big Data Consulting & SI +2 services20% Custom Software Development20% IT Strategy ConsultingIT Researches is a software development firm. Their large team is located in Glasgow, Scotland. Their team specializes in Custom Software Development and Artificial Intelligence.
Read more -
UndisclosedUndisclosed50 - 249Gloucestershire, England
Services provided
40% AI Development30% BI & Big Data Consulting & SI30% CybersecurityRipjar is an AI development company. Established in 2012, the firm is based in Gloucestershire, England. Their services include Artificial Intelligence and BI & big data consulting & SI.
Read more -
UndisclosedUndisclosed2 - 9Glasgow, Scotland
Services provided
40% Cybersecurity40% IT Managed Services20% Web DevelopmentTecnikal is an IT managed services company. The firm is based in Glasgow, Scotland. Their team offers IT managed services and Cybersecurity.
Read more -
UndisclosedUndisclosed50 - 249London, England
Services provided
40% Cloud Consulting & SI30% BI & Big Data Consulting & SI30% IoT DevelopmentIn Boston, Massachusetts and London, England, Cloud Technology Partners is a midsize cloud consulting & SI company. The team specializes in cloud consulting & SI and BI & big data consulting & SI.
Read moreSee All Locations (2)London, England
New Broad Street House 35 New Broad Street
London, England EC2M 1NHWas this helpful?
-
UndisclosedUndisclosed50 - 249Leeds, England
Services provided
40% Custom Software Development10% BI & Big Data Consulting & SI10% Cloud Consulting & SI +5 services10% IT Strategy Consulting10% UX/UI Design10% Web Development5% Business Consulting5% Mobile App DevelopmentAnswer Digital is a software development firm. Founded in 1998, the agency is located in Leeds, England. Their services include Custom Software Development and UX/UI Design.
Read more -
UndisclosedUndisclosed10 - 49Leeds, England
Services provided
35% IT Managed Services35% IT Strategy Consulting30% Custom Software DevelopmentSoftware Cloud Limited is an IT managed services company. They are in Leeds, England and have small team of experts. Their services include IT managed services and IT strategy consulting.
Read more -
UndisclosedUndisclosed50 - 249Leicester, England
Services provided
25% CRM Consulting and SI25% Call Center Services25% Cloud Consulting & SI +1 service25% RecruitingLaunched in 1999, CloudCall is a midsize call center in Boston, Massachusetts and Leicester, England. Their team specializes in Call Center Services and cloud consulting & SI.
Read moreSee All Locations (2)Leicester, England
1 Colton Square
Leicester, England LE1 1QF50 - 75
+4433.0335.0000
Was this helpful?
-
UndisclosedUndisclosed2 - 9Ingliston, Scotland
Services provided
50% IT Managed Services50% IT Strategy ConsultingTabard IT Ltd is a small IT managed services and IT strategy consulting company in Ingliston, Scotland. The team offers IT managed services and IT strategy consulting.
Read more -
UndisclosedUndisclosed10 - 49Belfast, Northern Ireland
Services provided
50% Cybersecurity50% IT Managed ServicesITMS Ireland is a small IT managed services and Cybersecurity company located in Belfast, Northern Ireland. Their services include IT managed services and Cybersecurity.
Read more -
UndisclosedUndisclosed10 - 49Nottingham, England
Services provided
70% IT Strategy Consulting30% IT Managed ServicesIn Nottingham, England, Green Giant Consulting is an IT strategy consulting company. They provide IT strategy consulting and IT managed services.
Read more -
UndisclosedUndisclosed2 - 9Grantham, England
Services provided
35% BI & Big Data Consulting & SI35% Business Consulting30% IT Strategy ConsultingFounded in 1989, Sandhill Consultants Ltd is a small big data company in Grantham, England. Their team offers BI & big data consulting & SI and Business Consulting.
Read more -
UndisclosedUndisclosed10 - 49Manchester, England
Services provided
25% Cloud Consulting & SI25% IT Managed Services25% Web Design +1 service25% Web DevelopmentUnlimited Web Hosting is a cloud consulting & SI company. Their small team is based in Manchester, England. Their services include cloud consulting & SI and IT managed services.
Read more -
UndisclosedUndisclosed50 - 249Bloomsbury, London, England
Services provided
25% Custom Software Development25% E-Commerce Development25% IT Managed Services +1 service25% IT Strategy ConsultingTacit Knowledge is a software development firm established in 2002. Their services include Custom Software Development and E-Commerce Development.
Read more -
UndisclosedUndisclosed250 - 999London, England
Services provided
25% CRM Consulting and SI25% Cloud Consulting & SI13% HR Outsourcing +3 services13% Staffing12% HR Consulting12% RecruitingLaunched in 2002, AKT Global is a cloud consulting & SI company. The team focuses on cloud consulting & SI and CRM consulting and SI and is in London, England and Montrouge, France.
Read more -
UndisclosedUndisclosed50 - 249London, England
Services provided
20% Application Testing20% Cloud Consulting & SI20% Custom Software Development +3 services20% IT Managed Services10% Low/No Code Development10% Web DesignFormidable is an IT managed services company. They are headquartered in Seattle, Washington and London, England. Their team specializes in IT managed services and Custom Software Development.
Read moreSee All Locations (2)London, England
77 East Road
London, England N1 6AH6 - 9
+44.203.488.4958
Was this helpful?
-
UndisclosedUndisclosed50 - 249London, England
Services provided
25% Business Consulting25% Engineering25% IT Managed Services +1 service25% IT Strategy ConsultingCredera UK is a midsize IT strategy consulting company in London, England and Manchester, England. Their services include IT strategy consulting and IT managed services.
Read more -
UndisclosedUndisclosed50 - 249Brentford, England
Services provided
30% Business Consulting25% Cloud Consulting & SI25% ERP Consulting and SI +2 services10% Recruiting10% StaffingBased in Hyderabad, India and Berlin, Germany, JSAN Consulting Group is a Business Consulting company. They provide Business Consulting and cloud consulting & SI.
Read moreSee All Locations (3)Brentford, England
Profile West, 950 Great West Rd
Brentford, England TW81
+44.203.950.3216
Was this helpful?
-
UndisclosedUndisclosed50 - 249London, England
Services provided
50% CRM Consulting and SI50% Cloud Consulting & SIMavens is a cloud consulting & SI and CRM consulting and SI company launched in 2007. In Chicago, Illinois and London, England, the team provides cloud consulting & SI and CRM consulting and SI.
Read moreSee All Locations (3)London, England
Holborn Town Hall, 193-197 High Holborn
London, England WC1V 7BD10 - 15
+44 20 7242 1411
Was this helpful?
-
UndisclosedUndisclosed10 - 49London, England
Services provided
50% CRM Consulting and SI50% Cloud Consulting & SINebula Consulting Ltd is a cloud consulting & SI and CRM consulting and SI company. The team is located in London, England, and their services include cloud consulting & SI and CRM consulting and
Read more
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My MatchesTell us what you need — we’ll match you with top agencies in minutes.
Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
Rollover to see company insights or click a company below for more details.
A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.
By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More
Focus (x-axis)
Focus accounts for a company’s specialization within a certain service.
Ability to Deliver (y-axis)
Ability to Deliver considers three criteria:
- Client feedback and reviews
- Work experience and previous projects
- Market presence and reputation in the industry
List of the Top 15 IT Services Companies in the UK
-
$50,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% IT Consulting50% Other -
$5,000+$100 - $149 / hr10 - 49Edinburgh, Scotland
Ability to deliver
35.1/40.016.2/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
100% IT Consulting -
$25,000+Undisclosed250 - 999Lytchett Matravers, England
Ability to deliver
31.4/40.015.8/20 Reviews6.7/10 Clients & Experience8.9/10 Market PresenceService focus
80% IT Consulting20% Other -
UndisclosedUndisclosed50 - 249Farnborough, England
Ability to deliver
38.7/40.020/20 Reviews9.8/10 Clients & Experience8.9/10 Market PresenceService focus
70% IT Consulting30% Other -
$25,000+$200 - $300 / hr1,000 - 9,999London, England
Ability to deliver
33.2/40.016/20 Reviews7.8/10 Clients & Experience9.4/10 Market PresenceService focus
100% IT Consulting -
$25,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
35.8/40.015.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
30% IT Consulting70% Other -
$5,000+$100 - $149 / hr50 - 249London, England
Ability to deliver
35.5/40.016.8/20 Reviews10/10 Clients & Experience8.7/10 Market PresenceService focus
70% IT Consulting30% Other -
$50,000+$200 - $300 / hr1,000 - 9,999Leeds, England
Ability to deliver
29.3/40.014.6/20 Reviews8/10 Clients & Experience6.7/10 Market PresenceService focus
55% IT Consulting45% Other -
$25,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
35% IT Consulting65% Other -
$1,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
28.9/40.016.2/20 Reviews7.6/10 Clients & Experience5.2/10 Market PresenceService focus
100% IT Consulting -
$50,000+< $25 / hr10,000+London, England
Ability to deliver
33.5/40.016/20 Reviews10/10 Clients & Experience7.5/10 Market PresenceService focus
35% IT Consulting65% Other -
$25,000+$25 - $49 / hr1,000 - 9,999St Albans, England
Ability to deliver
36.3/40.016.6/20 Reviews9.9/10 Clients & Experience9.8/10 Market PresenceService focus
20% IT Consulting80% Other -
$5,000+$25 - $49 / hr250 - 999Manchester, England
Ability to deliver
29.5/40.016.2/20 Reviews4.6/10 Clients & Experience8.7/10 Market PresenceService focus
50% IT Consulting50% Other -
$10,000+Undisclosed50 - 249Coventry , England
Ability to deliver
35.9/40.016.4/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
75% IT Consulting25% Other -
$25,000+$25 - $49 / hr1,000 - 9,999London, England
Ability to deliver
35.6/40.015.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
50% IT Consulting50% Other -
$75,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
35.5/40.016.4/20 Reviews9.8/10 Clients & Experience9.2/10 Market PresenceService focus
30% IT Consulting70% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
37.6/40.018.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
40% IT Consulting60% Other -
$5,000+$100 - $149 / hr50 - 249Scunthorpe, England
Ability to deliver
32.2/40.017.2/20 Reviews8.9/10 Clients & Experience6.1/10 Market PresenceService focus
100% IT Consulting -
$10,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
30.1/40.016.4/20 Reviews7.3/10 Clients & Experience6.4/10 Market PresenceService focus
95% IT Consulting5% Other -
$5,000+< $25 / hr250 - 999London, England
Ability to deliver
34.5/40.016.8/20 Reviews8.5/10 Clients & Experience9.2/10 Market PresenceService focus
30% IT Consulting70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% IT Consulting90% Other -
$100,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
36.3/40.016.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
46% IT Consulting54% Other -
$25,000+$50 - $99 / hr50 - 249London, England
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% IT Consulting85% Other -
$50,000+$50 - $99 / hr250 - 999Farnborough, England
Ability to deliver
35.4/40.015.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% IT Consulting80% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
15% IT Consulting85% Other -
$10,000+$25 - $49 / hr250 - 999London, England
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% IT Consulting85% Other -
$1,000+$50 - $99 / hr10 - 49Bradford on Avon, England
Ability to deliver
34/40.016.4/20 Reviews8.3/10 Clients & Experience9.4/10 Market PresenceService focus
100% IT Consulting -
$50,000+$150 - $199 / hr250 - 999London, England
Ability to deliver
39.2/40.019.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% IT Consulting90% Other -
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
34.6/40.017.4/20 Reviews7.5/10 Clients & Experience9.7/10 Market PresenceService focus
70% IT Consulting30% Other -
$25,000+$50 - $99 / hr50 - 249Salford, England
Ability to deliver
37.7/40.018/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% IT Consulting80% Other
Latest IT Services Articles
See all articles
How to Create a Budget for BI & Analytics Services [With Template]
Use our custom template for your business intelligence and analytics needs.
The Best Password Managers for Small Businesses in 2026
How secured are you online? Explore these top password managers to help safeguard your small business from malicious cyber attacks this 2026.
Get matched with the 5 best-fit agencies for your project—in 4 minutes or less.