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Software Development for IT & Technology · 53 agencies

Software Development agencies for IT & Technology.

Software Development is the discipline of building bespoke business systems, SaaS products, internal platforms, and enterprise integrations from scratch. It sits beyond Web Development, which is marketing sites and lighter web apps, and beyond Mobile App Development, which is native iOS and Android. This is the work commissioned when the product is the company. This page shows every agency on AgencyIndex offering software development for IT & Technology.

At a glance
Showing 1-24 of 53 software development agencies for IT & TechnologyAll Software Development agencies
Rattlesnake Group logo
Rattlesnake Group
Independent·London·11-50 Employees·Verified

Rattlesnake, a comprehensive design and technology agency, is headquartered in the heart of London. Renowned for its all-inclusive approach, the agency seamlessly blends design, development, and marketing to build more than just functional products - they craft commercially viable ventures. Their unique "From Founders to Founders" ethos, coupled with an innovation-focussed venture studio, strategi

Mobiteam UK logo
Mobiteam UK
Independent·London·11-50 Employees·Verified

Mobiteam, a renowned creative, design, and development agency, is strategically located in London. Best known for its bespoke web design and development services, Mobiteam excels in crafting visually appealing and top-tier websites, customised for corporate, personal, and eCommerce needs. The unique selling proposition of Mobiteam lies in its dedication to produce websites that not only captivate

Newton Day logo
Newton Day
Independent·London·11-50 Employees·Verified

Newton Day is a family-owned marketing company that helps busy sales and marketing leaders get more done. We take on the big marketing jobs that need clear thinking and practical action, and we automate the smaller tasks that slow teams down. Based in London, with operations across the Midlands, we work with technology, professional services, and museums and heritage organisations. Our team is approachable, experienced, and focused on making marketing work.

Synmek logo
Synmek
Independent·London·2-10 Employees·Verified

Synmek is a premier web design agency in London, renowned for delivering tailored web design and development solutions for businesses across various scales. Distinguished for its steadfast dedication to crafting SEO-enhanced, high-performing websites, Synmek not only captivates audiences, but also propels tangible business expansion. By merging proficiency, innovation and advanced technology, Synm

Mr Digital logo
Mr Digital
Independent·Brighton·11-50 Employees·Verified

Mr Digital, a Brighton-based digital marketing agency in the UK, prides itself on a data-driven approach that assures measurable results. Their unique selling proposition is a guarantee of success or services offered at no cost, backing their confidence in their data-reliant strategies to hit set goals. What distinguishes Mr Digital further is their unique Infinity-5 framework, consistently boosti

Fishtank Agency logo
Fishtank Agency
Independent·Leeds·11-50 Employees·Verified

Fishtank, a digital and creative agency in Yorkshire, UK, excels in metamorphosing corporate communication via compelling storytelling. By presenting groundbreaking solutions, they routinely secure enduring ROI for their clientele. Fishtank's distinctive edge lies in their dedication to strategic thought, use of data for business problem-solving, and proficiency in brand strategy, creative leaders

LION+MASON logo
LION+MASON
Independent·London·2-10 Employees·Verified

LION+MASON is a top-rated, strictly senior-led UK Digital Product Consultancy, specialising exclusively in the design, modernisation, and scaling of complex enterprise products and high-transaction platforms. Operating at the intersection of human-centred design and commercial strategy, the agency partners with global brands such as Johnson & Johnson, Best Western, and Cambridge University Press to drive scalable product growth and measurable business performance. Rejecting the traditional agency pyramid, LION+MASON connects clients directly with seasoned industry veterans and operates a unique, tech-agnostic "Architect Model"—remaining independent of the software engineering build phase to provide completely objective, best-fit technical partnerships without vendor lock-in. Consistently ranked by Clutch as one of the top UX Agencies in the UK and a leading global research firm, LION+MASON eschews traditional sales pitches in favour of a zero-barrier, free "Light Briefing," offering enterprise leaders immediate, expert perspective on how to bridge internal skill gaps, build competitive advantage, and architect market-leading digital products.

Pixeltree logo
Pixeltree
Independent·Manchester·11-50 Employees·Verified

Pixeltree is a Manchester-based digital experience and product consultancy. We help digital teams design, test and launch better products through research, UX strategy, product design and Design Sprints, working across finance, hospitality, travel and beyond.

Proctor + Stevenson logo
Proctor + Stevenson
Independent·Bristol·11-50 Employees·Verified

Proctor + Stevenson, a comprehensive B2B marketing agency in Bristol, UK, stands out for its unique capability to embrace commercial hurdles with a resounding "YES". By delivering customised marketing strategies, inventive solutions, and ground-breaking tech innovations, P+S ensures optimal business performance. Established in 1979, P+S merges years of industry expertise with a top-tier team.

Zinc Digital logo
Zinc Digital
Independent·Northampton·11-50 Employees·Verified

Zinc Digital of Northampton, UK, is a leading full-range digital agency renowned for its distinctive, collaborative method. Their strategic partnership with clients cultivates bespoke designs and plans that amplify each business's unique selling points (USPs), ensuring standout design and potent marketing. Their dedication to providing premium digital solutions is apparent in their extensive servi

Appdrawn logo
Appdrawn
Specialist·London·2-10 Employees·Verified

Appdrawn, a distinguished custom software development agency located in Watford, Hertfordshire, specialises in creating tailored solutions that meet the distinct business requirements of their clientele. Known for its innovative and client-focused products, this brand is a standout in its sector. Expertly balancing modernisation of legacy software, mobile app creation, and database streamlining.

Softhunters UK logo
Softhunters UK
Independent·Birmingham·201-500 Employees·Verified

Softhunters delivers innovative IT solutions that drive digital transformation, helping businesses stay ahead through smart automation, streamlined operations, and cutting-edge technology. Our recent projects showcase our commitment to excellence, blending strategy with technology to unlock growth and success in the digital age.

Blackstone-media UK logo
Blackstone-media UK
Network·London·11-50 Employees·Verified

Black Stone Media is a UK-registered digital media agency that specializes in organic, asset-based marketing strategies, search engine optimization (SEO), localized copywriting, and social media growth. The firm is structured as an organic-first agency, meaning they focus on building long-term search authority and community presence rather than managing paid advertising campaigns or ad spend budgets. They act as a strategic and creative engine handling target market research, copywriting, app store optimization, social media strategy, and localized community outreach materials while collaborating with their clients' internal technical teams to deploy the work.

Krishang Technolab logo
Krishang Technolab
Specialist·Leicester·11-50 Employees·Verified

Krishang Technolab's AI-powered software, mobile apps, and digital marketing solutions will help you expand your business faster than ever. We use creative, data-driven technology to help businesses optimize processes, increase consumer engagement, and achieve measurable results.

Leads Brain LTD logo
Leads Brain LTD
Specialist·Manchester·51-200 Employees·Verified

Boost your local visibility with Google Business Profile optimization, SEO for small businesses, and responsive website development. We help businesses grow online with affordable SEO services, faster websites, and better Google rankings that bring in more local traffic and real leads.

Loose Connections logo
Loose Connections
Independent·Bournemouth·2-10 Employees·Verified

We are a Hampshire-based digital marketing agency with over 25 years of experience building websites and online strategies that drive genuine business growth.

Lumi Studio logo
Lumi Studio
Independent·Edinburgh·2-10 Employees·Verified

Lumi Studio is a senior product design and development studio for complex, data-rich digital products. Based in Edinburgh and working across the UK, Europe and North America, we help growth-stage startups and established product teams design, build and grow software people rely on every day. Products we have helped create are used by 50+ million people, and we have been part of 4 exits, including acquisitions by Atlassian, IAC and Hivebrite.

Storm Digital logo
Storm Digital
Independent·London·2-10 Employees·Verified

Surrey-based developers and creators building web, mobile, AR/VR and AI experiences for clients across Surrey and London - hands-on from first idea to launch, for start-ups through to global brands.

Viorix digital solutions logo
Viorix digital solutions
Independent·London·2-10 Employees·Verified

Viorix Digital Solutions is a London web design agency helping startups and growing businesses build a stronger online presence. We design and develop bespoke websites and e-commerce stores that are fast, secure, user-friendly and built to perform. From UX and web development to launch, SEO and ongoing support, our experienced London-based team delivers a complete website design service tailored to your goals. Whether you need a new website, a full redesign or a custom online store, we create results-focused sites designed to attract more visitors, generate leads and help your business grow. Looking for a reliable website designer in London? Get in touch today.

Webskitters logo
Webskitters
Independent·London·201-500 Employees

Recognised worldwide, Webskitters LTD is an award-winning company, excelling in web and app design/development, alongside digital marketing. Our specialisation in these areas sets us apart, providing unparalleled services in web design and development. Our proficiency and the innovative integration of cutting-edge technologies cater to a diverse global clientele. Founded in 2010, Webskitters has e

Web Design Agency UK logo
Web Design Agency UK
Independent·London·11-50 Employees

As a top-ranking web design agency, Web Design Agency UK, based in London, delivers bespoke web design and development services to a broad client base across London and throughout the UK. Renowned for its reliability and profound experience, our agency excels in web design, branding, and digital marketing strategies. We provide all-inclusive design and development packages, specifically tailored f

Online Buzz logo
Online Buzz
Independent·London·2-10 Employees

Online Buzz, a London-based inventive agency, excels in providing a holistic approach to digital marketing. Our expertise lies in creative production, web development, and digital media, ensuring innovative campaigns that engage audiences uniquely. We pride ourselves on our deep comprehension of each client's business, target audience, and objectives, enabling us to tailor campaigns that not only

Drool Design Studio logo
Drool Design Studio
Independent·London·2-10 Employees

Drool Design Studio, a London-based design agency, epitomises the fusion of Caribbean and British influences. Our specialisms include website design, app development, branding, and cross-platform coding, particularly in Webflow, WordPress, and Shopify. What truly sets our studio apart is our culturally diverse team and bespoke approach to crafting immersive digital experiences. Our ethos centres a

Cynosure Designs logo
Cynosure Designs
Independent·London·11-50 Employees

Cynosure Designs, a London-based digital marketing agency, specialises in enhancing brand visibility and driving ROI with additional branches in Dubai and Lahore. Renowned for our dynamic collaborations and digital marketing proficiency, we curate bespoke strategies that amplify your brand's presence. Our blend of creative ingenuity and data-led precision provides a holistic array of services, inc

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Editor's note

AgencyIndex tracks 53 software development agencies for IT & Technology. The list above is filtered to that intersection and ordered with verified and featured listings first.

For the wider editor's view on software development agencies in the UK, see the software development service brief. For context on IT & Technology as a sector, see the IT & Technology industry brief. The pricing, timeline and red-flag notes below apply to software development as a discipline; they do not change materially for IT & Technology.

Typical cost
£15,000-1,000,000+
per build

Senior engineer day rates £550-900 · Agency hourly £80-150 (£640-1,200/day). Project bands: Lean MVP £15,000-40,000 · Production MVP £40,000-90,000 · Multi-tenant SaaS £90,000-200,000 · Enterprise platform £150,000-400,000+ · Large enterprise £250,000-1,000,000+.

Realistic timeline
12-52+ weeks
discovery to launch

Discovery 2-6wks · Architecture 3-8wks · MVP build 8-16wks · Iteration and hardening 4-12wks · QA 2-6wks. Simple MVP 12 weeks, medium product 4-8 months, enterprise platform 9-18 months. 2-week sprint cadence standard.

Red flags
6 to watch
in any pitch
  • · No source code or IP ownership clause in the contract
  • · Hidden offshoring with no named technical lead and no time-zone overlap
  • · Fixed-price proposal on scope that has not been through proper discovery
  • · No automated test coverage, no CI/CD pipeline, no staging environment
  • · No DevOps or SRE capability for post-launch reliability and incident response
  • · Buzzword-driven stack choices that can't be justified against the product, team, or scale
Frequently asked

What brands ask about software development agencies.

The 5 questions our editors get most often, answered honestly. These apply to software development as a discipline across every industry.

Curated by humans

UK pricing splits by project type. A lean MVP or proof-of-concept runs £15,000-40,000. A production-ready MVP lands at £40,000-90,000. Multi-tenant SaaS products sit between £90,000 and £200,000. Enterprise platforms with SSO, audit logs, and compliance start at £150,000 and climb past £400,000. Large enterprise builds with multiple teams and complex integrations run from £250,000 into seven figures. Senior engineers bill £550-750 per day direct, £640-1,200 per day through an agency.