Awarded Top 10 Best Website Design Business
We build websites for Sussex businesses that look the part and work in local search. From Brighton's independent scene to the rural South Downs and the coastal towns in between, every project is built to represent your brand and bring in the right enquiries.
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We're a South East-based marketing agency that works with businesses across Sussex and the wider region. Sussex has a rich mix of independent businesses, rural trades and growing brands, and we understand the different audiences and expectations that come with that.
Working with Codex means getting a website built specifically around your business and your goals. We're straightforward to deal with, transparent throughout and focused on delivering something that performs.
Here's what every Codex website includes as standard:
We're straightforward to work with, transparent about what we're doing and focused on delivering something that actually performs for your business.
Sussex businesses often serve a mix of local customers, visitors and people searching online from further afield. A good website needs to work for all of them, communicating clearly and giving every type of visitor an easy route to getting in touch.
Design, content, structure and SEO all need to work together. We think about the whole picture when building a site, not just how it looks on the first load.
The result is a website that consistently works for your Sussex business, whether someone finds you on Google, through a referral or via social media.
See our case studiesSussex is a county with huge variety, from the busy coastal cities to the quieter market towns and villages. Whatever your location and whoever your customers are, your website needs to reflect your business well and be easy to find online.
We build websites that look professional, load quickly and are set up for search engines from the start. Every project is hands-on, personal and focused on what actually matters to your business.
Before anything is designed, we take the time to understand your business, your audience and what you want the website to achieve. That research shapes every decision, from the structure of the pages to the way the content is written, so the end result actually reflects who you are.
Every website we build is set up correctly for search engines from day one. That means proper heading structures, fast load speeds, mobile-first design, clean code and content built around how people actually search for your services. It's far easier to get this right during the build than to fix it afterwards.
We care about how your website looks, but every design decision is backed by a reason. Page layouts, content structure and navigation are all considered with the visitor experience in mind, making it easy for people to find what they need and understand what you offer.
Once your site is live, we're still on hand. Every package includes monthly update time, so if something needs changing or adding, you just get in touch and we'll take care of it. No technical knowledge needed on your end.
Every business is different. Some need a clean, simple online presence to establish credibility. Others need a full multi-page website built to rank and convert. Our packages are designed to scale with your needs, and every one includes ongoing monthly support as standard.
In December 2025, we attended the Small Business Awards UK ceremony and came away with two national recognitions we're really proud of.
Codex was ranked 7th best web design business in the UK, placing us in the top 10 out of hundreds of agencies across the country. We were also recognised in the top 50 best digital marketing businesses in the UK.
It was a brilliant evening and a great reflection of the work our team puts in every day. We don't shout about awards often, but this one felt worth sharing.
We've worked with businesses across Sussex in sectors including hospitality, trades, professional services and retail. Browse our portfolio to see the kind of work we deliver.
View our portfolio
Have a browse through our site and gather all the information you need to feel confident choosing Codex for your project. If you still have questions, give us a call and we'll walk you through it.
Getting started is straightforward. After a quick conversation, we gather everything we need: your branding, your goals, your target audience and the pages you want. Then we get to work.
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Once we have your information, we build an initial design for you to review. This gives you a clear picture of how the site will look before any development begins.
Be as honest as you like. This is your website and we want it to reflect your business accurately. Tell us what you love and what you'd change, and we'll refine it until it's right.
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This is where it all comes together. Once the design is signed off, our team build your website from the ground up. Every element is tailored to your brand, optimised for speed and structured for SEO from day one.
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Once the build is approved, we handle the technical side of going live. Your domain, hosting, security and performance are all taken care of. We also carry out standard SEO setup at launch to give your site the best possible start in search rankings.
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We don't disappear after launch. Every package includes monthly update time so you can contact us whenever something needs changing. Your website stays current, secure and fully functional, with a team on hand when you need them.
Get started
Have a browse through our site and gather all the information you need to feel confident choosing Codex for your project. If you still have questions, give us a call and we'll walk you through it.
Getting started is straightforward. After a quick conversation, we gather everything we need: your branding, your goals, your target audience and the pages you want. Then we get to work.
Once we have your information, we build an initial design for you to review. This gives you a clear picture of how the site will look before any development begins.
Be as honest as you like. This is your website and we want it to reflect your business accurately. Tell us what you love and what you'd change, and we'll refine it until it's right.
This is where it all comes together. Once the design is signed off, our team build your website from the ground up. Every element is tailored to your brand, optimised for speed and structured for SEO from day one.
Once the build is approved, we handle the technical side of going live. Your domain, hosting, security and performance are all taken care of. We also carry out standard SEO setup at launch to give your site the best possible start in search rankings.
We don't disappear after launch. Every package includes monthly update time so you can contact us whenever something needs changing. Your website stays current, secure and fully functional, with a team on hand when you need them.
It's one thing to build a good-looking website. It's another for that website to make a real difference to a business. Here are a few examples of projects where our clients have seen tangible results since going live.
By combining thoughtful design with solid SEO foundations and good performance, the sites we build tend to rank well and attract people who are already looking for what our clients offer.
"The website paid for itself quicker than we expected."
The cost of a website varies depending on the number of pages, the complexity of the design and the features required. A simple one-page website will be considerably less than a large multi-page site or an e-commerce platform.
At Codex, we offer a range of packages to suit different business sizes and budgets. Get in touch and we'll talk through what's right for you.
Timelines depend on the size and complexity of the project. A smaller Sussex business website can typically be designed, built and launched within a few weeks. Larger projects take longer, but we'll always give you a clear picture of the timeline before work begins.
Yes. Every website we build includes on-page SEO as standard. This includes correct heading structures, page speed optimisation, mobile-first design, meta titles, descriptions and clean code. We also offer ongoing SEO services if you want to continue growing your visibility after launch.
Yes. All of our packages include monthly update time and ongoing support. We keep your website secure, up to date and fully functional so you can focus on running your business.
Absolutely. If your current website is outdated, slow or no longer reflects where your business is, we can redesign and rebuild it. We'll look at what's working, what isn't and what would make it better, then take it from there.
Yes. We build e-commerce websites for businesses wanting to sell products or services online. Whether you need something straightforward or a more fully featured platform, we'll build something that's easy to manage, fast to load and straightforward for your customers to use.
Every website we build is fully responsive, working correctly across phones, tablets and desktops. Across Sussex, customers search on a wide range of devices, and a site that performs well on all of them is essential.
Responsive design also means a single place to manage your content, with updates applying consistently everywhere. Fast, mobile-first websites rank better in search, giving your Sussex business an edge in local results.
