Web Design Agency St Louis, MO

Certified Web Design Agency Serving St Louis Businesses

Twelverays is a web design agency building custom websites for St Louis businesses, from Cortex Innovation Community startups to established firms in Clayton and Downtown. We pair responsive design and clean UX with an SEO-ready build, so your new site looks sharp and gets found.

 

Whether you need an eCommerce store, a WordPress site, or high-converting landing pages, we design for results. As a web design and SEO company, we make sure the site we ship is structured to rank and built to convert. Request a free consultation to scope your project.

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Why Choose Our Web Design Services in St Louis

Custom Website Design & Development

We design and develop custom websites for St Louis businesses, built around your brand and the way your customers actually move through a site. No rigid templates, just a site shaped to your goals.

 

Our process runs through discovery, wireframing, responsive build, and thorough testing, so the finished product holds up in a competitive market. Tell us about your business and we will scope a custom build.

Responsive Design & Mobile Optimization

Your St Louis customers research on phones as often as desktops, so we build responsive design and mobile optimization in from the start. Every layout adapts cleanly across devices.

 

We follow a mobile-first approach and tune performance so pages load fast, which keeps visitors engaged and helps conversions. Ask us to review how your current site performs on mobile.

eCommerce Development & Online Stores

We build online stores for St Louis businesses on Shopify, WooCommerce, and custom platforms, designed to drive sales and simplify day-to-day operations.

 

That includes product catalog setup, secure payment integration, inventory workflows, and checkout optimization that reduces drop-off. As your store grows, the build scales with it. Contact us to plan your eCommerce project.

Search Engine Optimization & Digital Marketing

A beautiful site that nobody finds does not grow revenue, so we build every St Louis website to be SEO-ready and pair design with digital marketing that brings in qualified traffic.

 

From clean technical structure and fast load times to content and paid support, we connect your site to the channels that fill your pipeline. Ask us how we make your new site rank from day one.

WordPress & CMS Development

We build WordPress and CMS-driven sites so your St Louis team can update content without calling a developer for every change.

 

That means custom themes, the right plugins, and a clean admin experience your staff can actually use. Whether it is a corporate site, a blog, or a larger web app, we set you up to manage it confidently. Reach out to discuss your CMS needs.

Landing Pages & Conversion Optimization

For campaigns and launches, we design high-converting landing pages built to turn St Louis visitors into leads and customers.

 

We use A/B testing, behavior analysis, and strategic calls to action to lift conversion rates, so your marketing spend works harder. Tell us about your next campaign and we will build a page to convert it.

Work with Twelverays

Why Choose Twelverays as Your Web Design Agency in St Louis?

Choosing the right web design agency shapes how your business shows up online for years. Twelverays brings design craft, technical depth, and a focus on measurable outcomes to St Louis companies, and we have helped organizations across Missouri rebuild their digital presence with custom websites and connected digital marketing.

 

We do not just make sites look good. We architect them to drive growth, combining responsive design, strong UX, and SEO so your investment keeps paying off. Whether you serve customers from a storefront in the Central West End or sell statewide, every project starts with understanding your specific goals.

Digital report showing search visibility, average position, and organic traffic metrics.
Hoskin Scientific case study - Twelverays
Peter P.
Voice of Customer Program Manager
"Twelverays optimized our LinkedIn, SEO, and SEM, boosting engagement, conversions, and ROI with a tailored digital strategy."
BC Dental Association case study - Twelverays
Tonya H.
Program Manager, Digital Services
"Twelverays has the skills and experience to deliver high-quality Dynamics 365 and WordPress integration."
Mitacs case study - Twelverays
Tiffy R.
Product Manager
"Twelverays integrated Dynamics 365 with ClickDimensions, unifying data flow and transforming our marketing and CRM processes."
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Our approach

Our Web Design Approach for St Louis Businesses

Our web design methodology is built to deliver for St Louis organizations of any size. We start with discovery to understand your business goals, audience, and competitors, which lets us design a site tailored to what you actually need rather than a generic template.

 

From there we move into strategy and planning, then design and development, including wireframing, visual design, responsive build, and CMS integration. We close with testing, launch, and training so your team can run the new site with confidence.

 

Throughout, we collaborate closely with your stakeholders and stay flexible as priorities shift. After launch we provide ongoing support and maintenance to keep the site fast, secure, and effective. Reach out to learn how the process would work for your project.

Our principles

Data-driven strategy

Our web design work is grounded in evidence and measurable results, not just aesthetics. Great design demands genuine partnership and a shared focus on outcomes that move your St Louis business forward.

 

We take time to understand your context before recommending solutions, and our team stays current on responsive design, UX, and the technical practices that help a site rank. We measure our success by yours, tracking site performance, conversions, and growth, then refining as the data comes in.

98%
Client satisfaction rate

Proven results

Transparency guides how we work. You get clear timelines, honest assessments, and regular updates through your St Louis web design project, and when challenges come up we address them openly.

 

We also believe in knowledge transfer, so your team builds internal capability alongside our work. Our training covers content management, maintenance best practices, and the basics of keeping your site visible in search. The result is a site you can confidently own and grow. Contact us to start your project.

100+
Businesses transformed with measurable growths

Real companies. Real gains.

"Twelverays got us ranking on page one for competitive keywords. Their expert, transparent SEO approach truly sets them apart. Highly recommend!"
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Verified Capterra Review
“Twelverays helped drive a 65% boost in non-branded traffic, a $2.4M organic value increase, and stayed responsive to enterprise needs.”
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Verified Clutch Review
“Brought unprecedented clarity to our sustainable investment framework and client communications.”
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Verified Upcity review
"They built quality backlinks through smart digital PR, boosting our domain authority significantly with a strategic, effective approach."
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Verified Clutch Review
"Twelverays’ SEO-driven content strategy boosted our rankings and positioned us as industry thought leaders. Real value, real results."
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Verified Capterra review
"Twelverays helped us dominate local search—now we're the top choice in every service area thanks to their expert local optimization and local content strategy."
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Verified Clutch review
"Those guys delivered tailored marketing insights that elevated our strategy. Their deep understanding of our business made a real difference—highly recommend!"
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Verified Capterra review
“We’re thrilled with Twelverays’ marketing consulting. Our brand awareness and sales have grown, and the business is scaling faster than ever. Thanks!”
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Verified Upcity review

FAQ

What web design services do you offer to businesses in St Louis, MO?

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Twelverays provides full web design services to St Louis businesses, including custom website design, responsive web development, eCommerce builds, WordPress sites, landing pages, and UI/UX design. We build professional online presences that are structured to perform, not just to look good.

 

Our work also covers search engine optimization, digital marketing, CMS implementation, and ongoing maintenance. We partner with businesses of every size across Missouri to deliver sites that turn visitors into customers. Contact us to talk through what your project needs.

How long does a typical website design project take?

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Website design timelines depend on scope and complexity. A focused brochure site moves quickly, while a custom application or a feature-rich eCommerce store takes longer because of the additional design and development involved.

 

Rather than quote a fixed number, we map a realistic timeline for your St Louis project during our initial consultation and keep communication transparent throughout the build, so you always know where things stand. Reach out and we will outline a timeline for your specific scope.

What makes Twelverays different from other web design agencies in St Louis?

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Twelverays stands apart through the combination of design craft, technical web development depth, and a focus on measurable outcomes. We treat every St Louis project as a business growth opportunity, not just a visual exercise.

 

Our team brings designers, developers, and digital marketing specialists together on the same engagement, so your site is built for responsive performance, strong UX, and search visibility from the start. That alignment is what helps the finished site perform on the metrics that matter to your business. Let us show you the difference on a call.

Do you provide website maintenance and support?

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Yes. Ongoing website maintenance is part of how we work, because a site needs continued care to stay fast, secure, and effective after launch.

 

Our maintenance covers security updates and monitoring, content updates, performance tuning, backups, and technical support. We offer flexible packages tailored to St Louis businesses, from light-touch support to fully managed services. Ask us which level of support fits your site.

How much does web design cost in St Louis?

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Web design investment for St Louis businesses depends on scope, complexity, and the level of ongoing support you need. We provide a customized proposal after learning about your goals through our discovery process, so the number reflects your actual project rather than a generic package.

 

Factors that shape investment include the number of pages, custom functionality, eCommerce features, content management needs, and integrations. We work transparently with businesses across a range of budgets to deliver real value. Contact us for a tailored quote.

Stop guessing. Start growing. In a world of noise, our direction helps you stay ahead.