The UK tech scene has a strong group of companies focused on AWS serverless application development. These outfits stand out for building efficient, scalable apps that run on AWS Lambda, API Gateway, and other serverless tools. They help organisations move away from traditional infrastructure and embrace event-driven architectures that automatically adjust to demand.

Many of these companies work with businesses of all sizes, from startups needing quick launches to established firms looking to modernise legacy systems. They bring deep expertise in creating reliable serverless solutions tailored to UK market needs, with a keen eye on security, performance, and compliance standards like GDPR.

1. OSKI Solutions

OSKI Solutions works with businesses across the UK on serverless application development. We focus on practical solutions that meet local market needs and help organisations manage variable demands without requiring heavy infrastructure management. Our approach prioritizes UK-specific requirements for data handling and compliance, while maintaining simplicity and effectiveness for projects of varying sizes.

We build applications that scale naturally with usage patterns common in the UK market. This helps companies avoid unnecessary costs and maintenance work. We listen carefully to what clients need and adjust the architecture to match their operational realities in the region.

Key Highlights:

• Focus on practical serverless solutions

• Attention to UK market requirements

• Straightforward project handling

Services:

• Aws serverless application development

• Serverless architecture design

• Event driven application building

Contact Information:

• Website: oski.site

• Phone: +48571282759

• Email: [email protected]

• Address: Kaupmehe tn 7, 10114 Tallinn, Estonia

• LinkedIn: www.linkedin.com/company/oski-solutions

2. Eternal Technolabs

Eternal Technolabs delivers AWS serverless solutions to enterprises seeking efficiency and scalability. This company designs and deploys cloud-native solutions in AWS environments that help modernise legacy systems and streamline operations. Their approach eliminates infrastructure overhead while supporting dynamic scaling based on real-time demand. Eternal Technolabs creates personalised strategies aligned with business goals for migrating workloads, building new applications, and optimising existing cloud deployments.

Eternal Technolabs offers expertise in serverless architecture that drives operational maturity through orchestrated frameworks focused on high availability, security, and compliance. The company provides options to hire experienced AWS serverless developers who can join existing teams to accelerate cloud-native development. Their specialists build scalable and event-driven architectures while optimising workflows and reducing overhead through best practices.

Key Highlights:

• Expertise in hyper-scale serverless solutions

• Focus on operational maturity

• Personalised strategy development

• Hands-on developer hiring support

Services:

• Cloud-native solution design

• Legacy system modernisation

• Workload migration to AWS

• Existing deployment optimisation

• Event-driven architecture building

Contact Information:

• Website: eternaltechnolabs.co.uk

• Phone: +44 74662 65317

• Email: [email protected]

• Address: 138 Newminster Road, Newcastle Upon Tyne, NE4 9LN

3. Lambert Labs

Lambert Labs brings technical expertise across a range of AWS cloud services. This company helps clients plan, implement, modernise, and upgrade application code and infrastructure based on specific requirements. Their team develops new solutions and migrates existing workloads to the cloud with deep domain knowledge. Lambert Labs serves various industries and project types through certified experts ready to support migration, modernisation, and builds on AWS.

Lambert Labs offers dedicated AWS solutions that include cloud builds for secure infrastructure, consulting for professional advice, cost optimization efforts, DevOps practices to increase development velocity, and cloud migrations. The company also covers modernisation to use AWS cloud native services along with Python and Django development for web applications and data engineering. Their Gen AI solutions on AWS help organisations stay competitive.

Key Highlights:

• Extensive AWS cloud service experience

• Certified expert team

• Support for various project requirements

• Industry-wide application

Services:

• AWS cloud builds

• AWS cloud consulting

• AWS cloud cost optimization

• AWS cloud DevOps

• AWS cloud migrations

• AWS cloud modernization

Contact Information:

• Website: lambertlabs.com

• Phone: +44 (0) 7491 599 440

• Email: [email protected]

• Address: 210 Old Brompton Road, London, SW5 0BS

• LinkedIn: www.linkedin.com/company/lambertlabs

• Twitter: x.com/lambertlabs

4. MakeCloud

MakeCloud provides AWS consultancy for UK SMBs with a focus on getting architecture right from the start. This company delivers expert architecture and consultancy services to design, review, and optimise cloud solutions that stay scalable, resilient, secure, and cost-effective. As an AWS Advanced Tier Services Partner, MakeCloud applies battle-tested patterns and platform knowledge whether clients build something new or improve existing setups. Their architects work as hands-on practitioners alongside engineering teams.

MakeCloud produces clear recommendations with documentation so teams can execute confidently. The company offers flexible engagement models from one-off reviews to ongoing advisory retainers and embedded architects. MakeCloud maintains a UK-based team and follows security best practices in every engagement while adapting to different ways of working. Their structured methodology comes from experience on numerous AWS projects.

Key Highlights:

• AWS Advanced Tier Services Partner

• Hands-on practitioner architects

• UK-based team

• Flexible engagement models

Services:

• Solution architecture design

• Well-architected reviews

• Technology selection

• Proof of concept prototyping

• Multi-account strategy

• Modernisation advisory

Contact Information:

• Website: www.makecloud.com

• Phone: +44 (0) 20 3637 8933

• Email: [email protected]

• Address: West Common, Harpenden AL5 2JQ, Great Britain

• LinkedIn: www.linkedin.com/company/makecloud-devops-cloud-consultancy

• Twitter: x.com/MakeCloud418

• Instagram: www.instagram.com/makecloud_com

5. SoftPro

SoftPro develops custom software solutions with a focus on cloud capabilities. This company builds cloud-native applications and handles cloud migration along with infrastructure management. SoftPro uses platforms like AWS to ensure scalability, security, and performance in solutions. The company supports businesses through full-stack development and modern technologies.

SoftPro delivers web application development and artificial intelligence services that complement cloud efforts. Their process involves close collaboration to create scalable applications suited to specific needs. SoftPro maintains values around excellence, innovation, integrity, and customer focus in project delivery. The company offers ongoing support considerations for developed software.

Key Highlights:

• Cloud development expertise

• Custom software solutions

• Cloud migration support

• Infrastructure management

Services:

• Web application development

• Artificial intelligence solutions

• Full-stack development

• Cloud-native applications

Contact Information:

• Website: soft-pro.pl

• Phone: +48 571 282 759

• Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

• LinkedIn: www.linkedin.com/in/kyrylo-o

6. CirrusHQ

CirrusHQ maintains a pure-focus expertise in AWS. This company works with businesses to optimize security, performance, and budget in cloud environments. Their certified solution architects and engineers handle AWS management while the Acuity Platform provides visibility over costs. CirrusHQ simplifies day-to-day operations so companies can get the most from AWS possibilities.

CirrusHQ delivers AWS solutions tailored for business needs without compromising on key aspects. The company emphasises complete visibility and easier management through dedicated tools. This setup results in cloud environments that align closely with operational demands. CirrusHQ supports organisations looking for focused AWS handling across different requirements.

Key Highlights:

• Pure-focus expertise in AWS

• Certified solution architects and engineers

• Acuity Platform for cost visibility

• Simplified day-to-day management

Services:

• AWS environment optimisation

• Cost management and visibility

• Security and performance balancing

• Cloud infrastructure support

Contact Information:

• Website: cirrushq.com

• Phone: 0131 208 0284

• Address: The Alba Campus, Rosebank Way, Livingston, Edinburgh, EH54 7GA

• Facebook: www.facebook.com/CirrusHQ

7. Mobilise

Mobilise serves as cloud native experts, enablers, accelerators, and partners. This company helps enterprises securely transform services, augment teams, and accelerate digital transformation efforts. Mobilise offers project enablement approaches that promote independence alongside around the clock support from site reliability and support engineers. The company maintains focus on managed services to let clients concentrate on value creation.

Mobilise provides DevOps and architecture expertise for lightning-fast results with security and cost-efficiency. Data, visualisation, and AI capabilities drive insights and predictions to optimise operations and decision-making. The company supports agile delivery methods as part of broader transformation work. Mobilise brings practical approaches to cloud native challenges across various enterprise scenarios.

Key Highlights:

• Cloud native expertise

• Project enablement focus

• Around the clock support

• Managed services delivery

Services:

• DevOps and architecture

• Data visualisation and AI

• Agile delivery support

• Digital transformation acceleration

• Service transformation

Contact Information:

• Website: www.mobilise.cloud

• Phone: +44 (0)345 054 2560

• Email: [email protected]

• Address: 1st Floor, One Waterton Park, Bridgend, CF31 3PH

• LinkedIn: www.linkedin.com/company/mobilise-cloud

• Twitter: x.com/MobiliseCloud

• Instagram: www.instagram.com/mobilise.cloud

8. The Line Tech

The Line Tech is a UK-based serverless development company specialising in AWS serverless architectures. This company helps UK businesses of all sizes design, build, and operate event-driven, cloud-native applications that scale automatically and require minimal operational overhead. Their engineers deliver serverless development services across industries such as financial services, healthcare, retail, media, and professional services. Every architecture gets optimised for performance, security, and UK GDPR compliance.

The Line Tech works on projects that include building new serverless applications from scratch, migrating existing systems to the cloud, or optimising current AWS serverless workloads. The company relies on core AWS services like AWS Lambda for lean functions, Amazon API Gateway for secure APIs, Amazon DynamoDB for NoSQL databases, AWS Step Functions for workflows, and tools such as Amazon EventBridge, SQS, SNS, AWS SAM, and CDK for infrastructure as code. This approach supports industries with specific needs, from fintech payment processing to retail inventory systems and healthcare data handling.

Key Highlights:

• UK-based team with local accountability

• AWS-certified serverless experts

• Focus on security and GDPR compliance by design

• Vendor-neutral architecture advice

Services:

• Event-driven application architecture

• API development with Amazon API Gateway

• Database design using Amazon DynamoDB

• Workflow orchestration via AWS Step Functions

• Infrastructure as code with AWS SAM and CDK

• Migration of legacy systems to serverless

Contact Information:

• Website: thelinetech.uk

• Phone: + 44 7448 752694

• Email: [email protected]

• Address: 305, 306, 307 Madhusudan Business Park, Naroda, Ahmedabad – 382330

• LinkedIn: www.linkedin.com/company/the-line-tech

9. Pulsion

Pulsion connects organisations with AWS Lambda specialists for cloud-based systems. This company supports building high-performance serverless applications, optimising cloud architecture, migrating existing systems, and ensuring connectivity. Pulsion offers engagement options including full-time, part-time, and single project arrangements with defined durations and billing approaches. Communication happens through multiple channels like in person, email, telephone, and Microsoft Teams.

Pulsion handles project management with escalation and monitoring for time and budget in engagements. The company provides dedicated AWS Lambda developers suited to different project scales without minimum commitments in some cases. Pulsion focuses on efficient, scalable serverless apps through expert matching. Their process includes transparency in tracking and reporting.

Key Highlights:

• AWS Lambda specialist hiring

• Multiple engagement options

• Project management monitoring

• Flexible communication channels

Services:

• Serverless application building

• Cloud architecture optimisation

• System migration support

• Connectivity solutions

• Full-time developer placement

Contact Information:

• Website: www.pulsion.co.uk

• Phone: 441413522280

• Email: [email protected]

• Address: 5 Eagle Street, Craighall Business Park, Glasgow, G4 9XA

• LinkedIn: www.linkedin.com/company/pulsion-technology

10. 21century.tech

21century.tech operates as an AI-native software studio. This company builds production software in a different way by pairing every engineer with Claude on every task. Seniors handle architectural decisions, code review, and final ownership while AI manages boilerplate, tests, and documentation. The studio delivers MVPs quickly along with fast refactors and production-grade code that maintains quality.

21century.tech follows a clear process that starts with a briefing on product specs or ideas. Senior engineers set the architecture during AI-augmented building with human review on every line and daily demos. The studio deploys complete solutions with CI/CD, tests, and documentation either to client infrastructure or their own. This approach gives engineers leverage without replacing them and keeps full human accountability.

Key Highlights:

• AI-augmented software building

• Human review on every line

• Senior architectural decisions

• Production deployment support

Services:

• Event driven development support

• Rapid MVP building

• Legacy code refactoring

• Full stack feature delivery

• AI assisted code generation

Contact Information:

• Website: 21century.tech

• Email: [email protected]

11. Objective Associates

Objective Associates offers AWS Lambda development and consultancy services. This company helps with serverless computing to run applications or functions without complex infrastructure management. Objective Associates explains how AWS Lambda reduces costs and boosts performance through effortless scaling. The company supports languages including node.js, C#, Java, and Python along with Microsoft .Net development via Visual Studio tools.

Objective Associates addresses differences between EC2 and Lambda while highlighting benefits like no administration overhead and pay for use models. The company covers performance considerations, security protections, and monitoring through AWS tools such as CloudWatch. Objective Associates provides insights on scaling through parallel executions and proper function design within time limits. Their consultancy includes practical guidance for deployment and invocation methods.

Key Highlights:

• AWS Lambda development focus

• Consultancy on serverless computing

• Language support for multiple environments

• Monitoring and scaling guidance

Services:

• AWS Lambda function deployment

• Serverless application support

• Cloud architecture consultation

• Performance optimisation advice

• Security configuration

Contact Information:

• Website: www.objectiveassociates.co.uk

• Phone: +44 (0) 1786 430076

• Email: [email protected]

• Address: Suite 2 Innovation House, Barlow Park, West Pitkerro Industrial Estate, Dundee, DD5 3UB

12. Rishabh Software

Rishabh Software delivers digital engineering and enterprise transformation through emerging technologies. This company leverages cloud, data engineering, analytics, AI, automation, and app engineering to support business scaling and innovation. Rishabh Software works across industries with solutions for digital foundations and agile journeys toward customer outcomes. The company maintains presence in multiple countries through its talented workforce.

Rishabh Software focuses on disruptive digital solutions rooted in trust and transparency. Their approach includes cloud capabilities as part of broader transformation efforts. The company delivers real solutions across areas like ad tech and digital manufacturing with modernisation projects. Rishabh Software empowers visions with technology that drives operational improvements and new opportunities.

Key Highlights:

• Digital engineering leadership

• Enterprise transformation support

• Cloud and emerging tech use

• Industry-specific solutions

Services:

• Cloud solutions

• Data engineering and analytics

• AI and automation

• App engineering

• Digital transformation

Contact Information:

• Website: www.rishabhsoft.com

• Phone: +44 2070318422

• Email: [email protected]

• Address: 4th floor, Scottish Provident House, 76 – 80 College Road, Harrow, HA1 1BQ, U.K

• LinkedIn: www.linkedin.com/company/rishabh-software

• Facebook: www.facebook.com/rishabhsoft

• Twitter: x.com/rishabhsoft

• Instagram: www.instagram.com/rishabhsoft

13. Vention

Vention provides AWS cloud consulting services focused on strategic decisions. This company acts as an Advanced Tier AWS Consulting Partner and supports cloud adoption, migration, and optimisation projects. Vention works with certified consultants who analyse environments, compare costs, and design strategies for performance, reliability, and operational aspects. The company offers flexible involvement from workshops to direct development support.

Vention handles cloud migration by auditing readiness and recommending methods such as rehosting or re-architecting while defining roadmaps with milestones and risk mitigation. Their implementation services cover cloud-native architectures, service selection, and infrastructure as code. Vention conducts reviews against the AWS Well-Architected Framework to identify gaps and provide actionable recommendations followed by follow-up checks. The approach prioritises smooth transitions without disruptions to processes.

Key Highlights:

• Advanced Tier AWS Consulting Partner

• Cloud adoption strategy design

• Migration readiness assessment

• Well-Architected Framework reviews

Services:

• AWS cloud migration consulting

• AWS implementation consulting

• AWS optimization consulting

• Cloud adoption consulting

• Infrastructure as code automation

Contact Information:

• Website: ventionteams.com

• Phone: +442071172842

• Email: [email protected]

• Address: London, 30 Churchill Place, E14 5RE

• LinkedIn: www.linkedin.com/company/ventionteams

• Twitter: x.com/ventionteams

• Instagram: www.instagram.com/ventionteams

14. Instil

Instil combines engineering expertise with agentic workflows across the software lifecycle. This company supports agentic product engineering, AI transformation, and cyber security efforts. Instil helps teams build new products and modernise legacy platforms using AI-driven delivery methods. The company moves projects from early definition through production and scale phases.

Instil prepares data, people, and products for faster movement and smarter building with AI. Their cyber security work embeds practices into organisational culture in a human-centred way. Instil applies agentic approaches to solve complex problems and ship faster. The company delivers training and hands-on support for effective tool use in engineering teams.

Key Highlights:

• Agentic product engineering focus

• AI transformation support

• Cyber security integration

• Full lifecycle engineering

Services:

• Agentic product engineering

• AI transformation

• Cyber security services

• Legacy platform modernisation

• Product definition support

Contact Information:

• Website: instil.co

• Phone: +44 2890 278498

• Address: 27-37 Adelaide Street, Linen Loft, Belfast, BT2 8FE

• LinkedIn: www.linkedin.com/company/instilhq

• Instagram: www.instagram.com/InstilHQ

15. Opinov8

Opinov8 delivers AWS professional services as an Advanced Partner. This company assists with cloud migrations, serverless architectures, and secure scalable solutions on AWS. Opinov8 covers cloud architecture, consulting, security, managed services, and cloud-native development. The company also handles DevOps, infrastructure automation, content delivery, and AI data engineering on AWS.

Opinov8 supports multi-cloud strategies and optimisation efforts alongside well-architected framework reviews. Their work includes cloud database management, migration consulting, and SaaS development. Opinov8 applies practices across various projects from modernisation to performance improvements. The company maintains locations in the UK and provides consultation options for cloud-related needs.

Key Highlights:

• AWS Advanced Partner

• Cloud architecture and security

• Managed AWS services

• DevOps and automation

Services:

• Cloud-native development

• AI and data engineering on AWS

• Cloud migration consulting

• Content delivery optimisation

• Multi-cloud strategy

Contact Information:

• Website: opinov8.com

• Email: [email protected]

• Address: Office 9, Weyhouse, 15 Church Street, Weybridge, KT13 8NA

• LinkedIn: www.linkedin.com/company/opinov8

• Facebook: www.facebook.com/opinov8.technology.services

• Twitter: x.com/opinov8

• Instagram: www.instagram.com/opinov8

16. .NET Developers

.NET Developers offer dedicated teams for project work with experienced leaders. This company combines developers of varying seniority levels to support C# .NET development within the Microsoft framework using SOLID design patterns. .NET Developers builds applications and works with .NET CMS platforms to reduce costs. The company handles front-end development with JS frameworks like React, Angular, and Vue.

.NET Developers maintains a simple pricing model and provides solution options for business needs. The company emphasises timely delivery through deep technical expertise. Their approach includes communication via forms and quick responses to inquiries. .NET Developers focuses on web solutions that integrate different technologies effectively.

Key Highlights:

• Dedicated development teams

• C# .NET expertise

• CMS platform development

• Front-end framework support

Services:

• C# .NET application building

• .NET CMS development

• Front-end development

• Web solution integration

Contact Information:

• Website: net-devs.com

• Phone: +48 571 282 759

• Email: [email protected]

• Address: Obrzeżna 1D, 02-691 Warszawa, Poland

• LinkedIn: www.linkedin.com/company/net-devs

Conclusion

Picking the right AWS serverless application development company in the UK comes down to understanding what fits your specific situation. Some projects need deep migration experience while others call for quick prototyping or cost-focused optimisation. The UK market has solid options that handle everything from event-driven setups to complex workflows, but success usually depends on how well the company grasps your industry and long-term goals.

At the end of the day, serverless on AWS can really change how teams build and run applications, especially when you get the architecture decisions right early on. Take time to review their past approaches, ask about their handling of compliance and scaling quirks, and see who clicks with your way of working. The landscape keeps evolving, so staying informed helps you make choices that actually deliver value down the line.