A website has to handle two jobs at once: give visitors a clear, usable experience and make its content easy for search engines to understand. The companies below approach that combination differently, with some putting SEO at the center of the project and others leaning more heavily into UX, development, ecommerce, or technical performance.
Gilzor handles web projects as part of a broader digital product development practice. Its work covers website design, UI/UX, frontend and backend development, testing, and continued support, making it relevant when the website itself needs more technical depth than a typical marketing site. Responsive layouts, navigation, usability, and performance are considered during the design and build process.
Search visibility is closely tied to those technical decisions. Gilzor's work around web performance, mobile usability, site structure, and technical implementation can support SEO-heavy projects where development issues are part of the problem rather than something a marketing team can fix independently. The company works with startups, SMBs, and product-focused businesses across international markets.
Coalition Technologies combines SEO with web design, development, ecommerce, paid advertising, email, and social media. Its Los Angeles operation makes it a straightforward fit for US businesses that prefer to keep a website built and its ongoing organic search campaign within the same agency.
Website projects can include frontend and backend development as well as search-focused work after launch. On the SEO side, the company handles technical adjustments, content, links, keyword strategy, and other campaign elements. Its portfolio spans lead-generation and ecommerce websites, so the agency is not limited to one type of site or conversion model.
Digital Silk connects custom web design and development with SEO, content marketing, branding, and paid media. Its website work covers strategy, UX, interface design, development, ecommerce, and conversion optimization, with platforms including WordPress, Shopify, Magento, and headless setups.
SEO is available as a separate service rather than simply appearing as a design consideration. The scope includes organic, local, enterprise, and technical SEO, alongside content and reporting. This setup can make sense for businesses planning a redesign that needs to preserve or expand organic visibility after launch.
A-listware approaches website projects from the design and engineering side. Its web design practice covers responsive websites, responsive web applications, website redesign, UI, UX, and SaaS interface design. The wider development team can continue from design into architecture, frontend and backend engineering, integrations, testing, and ongoing support.
That structure is particularly relevant for businesses where search performance depends on how the website is built, including site performance, usable content structure, and maintainable frontend implementation. A-listware's broader delivery model can also bring development, marketing, DevOps, and support specialists into distributed teams when the website forms part of a larger digital operation.
SmartSites brings web design and organic SEO together with PPC, email, SMS, and social media marketing. Its portfolio separates projects by services such as web design and organic SEO, giving businesses the option to use the agency for either a focused engagement or a wider digital marketing program.
The company is headquartered in Paramus, New Jersey and serves businesses beyond its local market. Its combination of design and marketing is particularly suited to companies that want the website treated as part of an acquisition strategy rather than as an isolated creative project.
Lounge Lizard combines custom website design and development with digital marketing. SEO and newer search approaches such as AEO are built into its wider service model, while website projects cover UX, visual design, WordPress development, responsive layouts, and conversion-focused structure.
Its design framework includes SEO-conscious architecture, content structure, clean code, and technical foundations. That makes the agency relevant to businesses that want search considerations handled during a redesign rather than addressed only after a new site goes live.
Itexus is better suited to technically involved websites and web applications than to lightweight brochure sites. Its design practice covers website and web application UX/UI, while the development team handles frontend, backend, integrations, testing, performance optimization, deployment, and post-launch support.
SEO forms an explicit stage in its website development process. That work can include content optimization, metadata, robots.txt, sitemaps, structured snippets, analytics setup, and internal website optimization before launch. Itexus has also handled SEO audits and technical corrections when redesign or migration work affected search performance.
OuterBox has a particularly close connection between website development and search marketing. Its web design service covers strategy, UX, custom design, frontend and backend development, CMS implementation, SEO, Core Web Vitals, content, analytics, integrations, QA, launch, and post-launch work.
Its SEO practice extends well beyond basic on-page work. Technical SEO, content strategy, authority building, local search, ecommerce SEO, SEO consulting, audits, and search-focused migration work are available. OuterBox serves businesses across the United States and has offices in Ohio, Texas, and Minnesota.
eSEOspace combines website design and development directly with SEO, GEO, AEO, and conversion optimization. Rather than separating design and organic search into different service tracks, the agency works on website structure, UX, technical performance, and discoverability as connected parts of the same project.
Its SEO services include technical SEO, local and ecommerce SEO, schema markup, content marketing, link building, audits, and website speed optimization. The company is US-based and lists locations in California, Washington, and Colorado, making its geographic connection particularly clear.
UPQODE provides website design and development alongside SEO, PPC, content writing, analytics, maintenance, and hosting. Its web work ranges from one-page sites to ecommerce and corporate websites, making it a practical option for businesses that want the agency responsible for both the initial build and later marketing activity.
SEO services cover audits, keyword research, on-page and off-page optimization, and link building. UPQODE also offers SEO web design, where a new or refreshed website is developed alongside site optimization rather than treating organic visibility as a separate project.
21century.tech takes a development-first route to web projects. The Miami-connected, remote-first studio builds production software, MVPs, landing pages, integrations, and full-stack features using a workflow where senior engineers retain responsibility for architecture, business logic, testing, security, and final review.
For a web design and SEO project, its strongest contribution is the engineering layer behind search performance: landing-page implementation, frontend quality, code refactoring, testing, deployment, and technical changes that affect site speed or usability. It is a better match for businesses whose SEO problems require development resources than for companies seeking a conventional content-led SEO retainer.
WebFX offers dedicated SEO web design services in addition to broader website design and digital marketing. Its website builds can include responsive design, SEO, CRO, content, ecommerce functionality, CMS implementation, database integration, and lead or revenue tracking.
The company's approach treats designers, developers, and SEO specialists as separate disciplines working on the same project. This is useful for redesigns where visual improvements cannot come at the cost of crawlability, navigation, mobile usability, URL structure, or existing search performance.
Thrive combines website design, development, SEO, content, and other digital marketing services. Its published projects show the agency working on responsive WordPress redesigns while SEO specialists handle keyword research, on-page optimization, local search, technical corrections, content, and off-page work.
This makes Thrive relevant when an existing website needs a wider overhaul rather than isolated SEO changes. Design, content, technical implementation, and organic search can be addressed together, which reduces the handoff between the team building the website and the team responsible for its visibility.
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Big Drop is a US web design and development agency with offices in New York, Miami, and Los Angeles. Its website projects combine custom UX/UI, responsive design, frontend and backend development, branding, and digital marketing. SEO optimization is incorporated into its design capabilities to support search visibility alongside the visual and usability work.
For ongoing marketing, Big Drop's scope includes SEO, content marketing, paid advertising, social media, and email. The agency works across both corporate and consumer-facing projects, with published work spanning technology, financial services, healthcare, fitness, and other sectors.
Straight North builds custom websites around UX, conversion, content, development, and SEO. Its web design process includes search-friendly structure and content from the beginning, while developers consider mobile usability and site speed during implementation. The agency works with both B2B and B2C businesses.
SEO can continue beyond the website launch as a separate ongoing service. Straight North provides local SEO and other search marketing work, while its more search-focused website packages can include keyword research, target-page planning, title tags, redirects, Search Console, and historical organic traffic analysis.
Web design and SEO work best when they are planned together rather than handled as unrelated tasks. A visually polished site can still struggle if its structure, speed, content, or technical setup gets in the way of search visibility.
The companies covered here take different routes to the same problem. Some are primarily SEO agencies with web design capabilities, while others come from a design or development background and put more weight on technical performance. For businesses comparing web design and SEO companies in the USA, the useful question is not who offers the longest service list, but which team matches the actual needs of the website. A simple lead-generation site, an ecommerce store, and a complex web platform rarely need the same mix of design, development, and search expertise.
