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UK-based, ISO 27001-certified website development agency

Website Design & Development

We design and build secure, high-performing websites that have visual impact, load fast and support your organisational goals. From brochure sites to rich content platforms, we create meaningful functionality, user experiences (UX) and design that engage users, underline your presence and help you to achieve tangible results.

Hero Image - One of the OWA client's systems displayed on a large screen
Hero Image - One of the OWA client's systems displayed on a mobile screen
Hero Image - Another of the OWA client's systems displayed on a large screen
500
+
PROJECTS COMPLETED
30
+
YEARS' EXPERIENCE
250
+
HAPPY CLIENTS
100
%
UK-BASED DEV TEAM
Solving complex digital challenges

Off-the-shelf software, hosting packages and technical support aren’t always the answer. Many organisations need applications tailored to their specific processes, legacy systems and security requirements. That’s where OWA comes in. We help you overcome technical obstacles with digital products, hosting and support solutions that work the way you do.

With a collaborative process that reduces risk
1
Discovery first
Understanding your systems, your users and your goals
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Iterative design & delivery
Breaking complexity down to bite-size and adapting as we learn
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Security at the core
Your ISO 27001-certified, Cyber Essentials-accredited Cloudflare partner
4
Partnership beyond launch
End-to-end service from build and go-live to ongoing hosting and support
Accreditation Logo - ISO
Cyber Essentials Certified - Logo
Cloudflare Logo
Crown Commercial Service  Supplier Accreditation
Accredited Channel Partner Accreditation
BIMA Member - Logo
WHY CHOOSE OWA?
What sets our websites apart?

Take a look at how we’ve helped clients improve performance, modernise systems and solve complex challenges with our website development.

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Custom-built
Every solution is designed specifically for your organisation.
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User-centred
UX and interfaces designed to simplify flows and improve adoption.
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Proven track record
30+ years of delivering secure solutions for business, public sector and not-for-profit organisations.
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Legacy modernisation
Integrate or replace older systems without disrupting day-to-day operations.
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Future-ready
Applications and products designed to adapt with you as your organisation grows.
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Secure hosting, responsive support
Peace of mind from fully managed UK hosting and 24/7 support and protection.
Real results, built to last

See how we’ve helped organisations launch new platforms and modernise legacy systems with measurable impact

With over 30 years of cross-industry experience in web application development, we’ll bring our deep understanding and sector-wide knowledge to your project.

Enterprise
Start-up
Public Sector
Government
Charity
Not-for-profit
Trade Union
Ecommerce
E-Learning
Advocacy
Education
Finance
Healthcare
Membership
Research
Training
Have more questions?
Have more questions? We’re here to help

We’re not just developers – we’re long-term partners, helping you to design, deliver and support a secure website that evolves with your organisation.

Website types, platforms & use cases

What types of website do you develop?

At OWA, we design and build everything from marketing and campaign sites through to more complex content management system (CMS)-driven platforms with bespoke functionality. These include ecommerce stores, portals, membership systems, content-rich sites and full web applications. Our work has helped clients in enterprise, start-up, government and not-for-profit sectors – and every build is shaped around your goals, your users and the way your organisation works.

Can you build websites for enterprise use?

Yes – OWA develops enterprise-level websites that support high traffic and complex workflows while meeting relevant compliance requirements. As an ISO 27001-certified provider, security, performance and maintainability underpin everything we do. We can also integrate with internal systems, Single Sign-On (SSO) and wider IT infrastructure as required.

Which content management systems (CMS) do you support?

OWA works with a range of CMS platforms, including Drupal and WordPress, and we can code custom modules or plugins in PHP if needed. We will recommend a CMS that best fits your content model, technical needs and long-term plans. We also maintain and upgrade existing installations to keep them secure and stable.

Do you offer headless CMS builds?

Yes – we can advise on this at the start of a project once we know more about your requirements. A headless CMS separates content management from the front-end website and delivers content via an API. This offers gains in flexibility and performance for organisations that need modern front-end frameworks alongside multi-channel publishing options.

Do you build responsive sites that work on mobile devices?

Yes – every OWA website is fully responsive as standard. If your audience is primarily mobile, we can take a mobile-first approach to design and development. We test across a wide range of devices and screen sizes and ensure mobile accessibility and performance are prioritised from the start.

Getting started & planning your project

Do I need a specification or requirements to start a web development project?

No – you don’t need a full specification to begin work. OWA can help you shape requirements during a discovery phase, defining scope, features, design considerations and priorities – all shaped to your budget. If you do have documentation, we’ll work with it; if not, we’ll guide you through what’s needed so the project starts with clarity and confidence.

How long does it take to develop a website?

Timelines vary depending on size, complexity, integrations and content preparation. Smaller sites can be delivered in weeks, while larger platforms typically take a few months. Once we understand the scope, OWA will propose a clear and realistic schedule that is mutually agreeable.

Do you offer fixed-price or flexible development options?

Yes – OWA provides fixed-price quotes where the scope is clear and well-defined, as well as flexible, time-based arrangements for evolving or exploratory projects such as proofs of concept. We’ll help you choose the approach that best suits your goals, timelines and budget.

Design, usability & performance

What is your approach to user experience (UX) and user interface (UI) design for websites?

We start by understanding your users and what they’re looking to achieve during a visit to your site. OWA prototypes user journeys, layouts and key interactions as wireframes before moving into detailed UI design. Visual concepts are then developed and iterated which reflect your brand and support clarity, usability and conversion.

Do you offer support with information architecture (IA) and site structure?

Yes – OWA can help define your content hierarchy, navigation and overall site structure. This ensures your content is presented intuitively, meets user needs and SEO best practice. We guide you through content planning before design begins.

Do you optimise websites for technical SEO and page speed?

Performance and technical SEO are built into our development process from the start. OWA optimises code, assets, metadata, schema and server configuration to support strong search visibility and fast load times. You’ll launch with a site that’s ready to perform.

Do your websites meet accessibility standards (WCAG/AA)?

Yes – OWA can design and build to WCAG 2.2 A/AA standards depending on your requirements. We consider accessibility from design through to testing, including colour contrast, keyboard navigation, semantic markup and compatibility with assistive technologies.

Integrations, scalability & legacy systems

Can you build scalable sites that grow as our user base increases?

Yes – scalability is built into our architecture from the outset. OWA designs for growth in traffic, content and functionality, using efficient code, caching strategies and scalable hosting. You’ll have a website that can evolve as your organisation and audience grow.

Do you integrate websites with external APIs, third-party services or existing platforms and databases?

Absolutely – integrations are a core part of what we do. We connect websites to CRMs, payment gateways, marketing tools, internal systems and bespoke databases. Our team ensures data is transferred securely and reliably, supporting smooth workflows across all of your systems.

Do you work with legacy systems or older back-end technologies?

We regularly support organisations working with older frameworks or bespoke, discontinued systems. We can stabilise, extend or progressively modernise legacy components, focusing on security, reliability and risk management.

Do you support content migration from an existing site or database?

Absolutely – OWA manages both automated and manual content migration. We map your current data to new structures, check integrity and minimise disruption. This can also be an opportunity to audit and reorganise content.

Security, compliance & hosting

Can you build sites that handle sensitive or regulated data?

Yes – OWA works with organisations that must meet high standards of security and compliance. We implement secure authentication, encrypted data flows, audit trails and regulated hosting environments. We’ll guide you through best practice from project kick-off.

How secure are your development and hosting processes?

OWA’s development and hosting services are ISO 27001-certified and Cyber Essentials-accredited. We follow OWASP-aligned best practice, with security embedded into every stage of design, development and deployment.

Where do you host websites?

We offer fully managed, UK-based web hosting with strict security and high performance. Options include shared or dedicated environments depending on your needs. Hosting is actively monitored by OWA’s in-house team for stability and uptime.

Support, maintenance & long-term partnership

Can you support or upgrade an existing website?

Yes – we can review and improve existing sites, even if they were built elsewhere. OWA handles performance optimisation, UX enhancements, security updates, CMS upgrades and new feature development. We’ll assess your current set-up and recommend the safest, most cost-effective route forward.

What technical support do you offer for website updates and ongoing maintenance?

We offer ongoing support covering security updates, bug fixes, enhancements and content changes. We monitor performance and uptime and provide rapid responses to customers through the OWA Client Portal. Support is tailored to your organisation and the platform you’re using.

What is your development process for building a website?

Our full process includes discovery, prototyping with UX and visual design, development, testing and launch. OWA works collaboratively throughout, ensuring transparency and aligned expectations at every stage. After launch, we continue with monitoring, optimisation and support.

Ready to transform your digital presence?

Whether you’re looking to create a new application or facing legacy system challenges and performance bottlenecks, we're here to help.

UK-based design and development

Project planning and scope definition

Technical architecture recommendations

Migration strategy for legacy systems

Fully managed UK-based hosting and support

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