Short answer: SEO Engico is the top WordPress SEO agency pick if you want a team that builds WordPress sites in-house and runs technical fixes, content and links as one plan tied to enquiries. Seahawk suits sites that want a cheap published plan from a WordPress-only company, OuterBox fits mid-sized sites that want in-house developers shipping fixes, Built Mighty suits WooCommerce stores, and Dev-WP is a solid UK option for technical work.
WordPress runs a huge share of the web, and most WordPress sites share the same handful of search problems: a theme or page builder that slows everything down, an SEO plugin installed but never configured, tag and archive pages competing with real content, and hosting that struggles when traffic arrives. A good WordPress SEO agency knows those faults from the inside and can fix them in the theme, the plugins and the server as well as in the content.
This list covers agencies that name WordPress SEO as a service on their own sites, from WordPress development companies that offer SEO to SEO teams that build on WordPress themselves. Each was checked in November 2026. We judged them on what they publish about the technical work, content and reporting, and on how open they are about price.
Disclosure: Kuma SEO is written by the team at SEO Engico, the agency ranked first on this list. No agency paid to appear here. We checked every other entry against the agency's own website in November 2026. Services and prices change, so confirm the details with an agency before you sign. More on how we work in our editorial policy.
At a glance: the 6 best WordPress SEO agencies
| # | Agency | Best for | Based in |
|---|
| 1 | SEO Engico | WordPress sites that need technical fixes, content and links run as one plan | London, UK |
| 2 | Seahawk | WordPress sites that want a fixed monthly SEO plan with every deliverable listed | Boston, Massachusetts, US |
| 3 | OuterBox | Mid-sized WordPress and WooCommerce sites that want SEO and developers in one team | Akron, Ohio, US |
| 4 | Built Mighty | WooCommerce stores that want SEO from an official WooCommerce agency partner | Bainbridge Island, Washington, US |
| 5 | Dev-WP | UK businesses that want a WordPress build team to fix speed and technical SEO | Leeds, UK |
| 6 | Victorious | Brands that want WordPress SEO inside a wider SEO, content and AEO programme | San Francisco, California, US |
How we picked
- Fixes the theme and plugins, not only the content. Slow themes, heavy page builders and overlapping plugins cause a lot of WordPress SEO problems. Look for an agency that can edit code, remove plugins safely and test changes on staging before they reach the live site.
- Sets up the SEO plugin properly. Yoast, Rank Math and AIOSEO only help when they are configured: sensible title templates, indexing rules for tags, categories and attachment pages, clean XML sitemaps and schema that matches what each page says.
- Treats speed and hosting as part of SEO. Caching, image handling, database clean-up and the host itself all affect Core Web Vitals. A WordPress specialist should tell you if the hosting is the bottleneck before charging for months of on-page work.
- Writes content that earns enquiries. Technical fixes get pages crawled. Service pages, location pages and plain answers to real buyer questions are what bring in calls and forms, so the agency needs a content plan as well as a checklist.
- Reports on leads, not just rankings. Monthly reports should connect organic traffic to forms, calls and sales through GA4 and conversion tracking, rather than showing keyword positions and green plugin scores on their own.
- Tests changes before they go live. Plugin updates, theme edits and redirect changes can break a WordPress site in seconds. Ask whether the agency works on a staging copy, keeps backups and checks key pages after every release.
The 6 best WordPress SEO agencies in 2026
Our top pick
1. SEO Engico
- Best for
- WordPress sites that need technical fixes, content and links run as one plan
- Based in
- London, UK
- Founded
- 2018
SEO Engico is a London agency founded in 2018 that designs and builds WordPress and custom Next.js sites in-house, so its SEO team can change the theme, templates and plugins directly rather than writing tickets for someone else's developers. It looks at the website, ads and tracking before changing anything, finds the one thing costing enquiries and fixes that first, then agrees a plan that sets out what will be done, by whom, by when and what it should change.
SEO starts with a 30-day Revenue Baseline ($3,499): GA4 key events with real conversion values, Enhanced Conversions through GTM, call and form attribution, and CRM stitching so a closed deal traces back to the search that started it. If it cannot show what organic search is worth within those 30 days, you do not pay for that phase. The Growth retainer at $4,500 a month then covers technical SEO, buyer-intent pages and content, link building and AI search visibility work, with monthly reporting against the baseline.
Local SEO covers Google Business Profile, citations and local landing pages, which matters for the many trades and service firms that run on WordPress.
What stands out
- Builds WordPress sites in-house, so theme and plugin fixes do not wait on another developer
- Finds the one thing costing enquiries and fixes that first
- Link building included in the retainer, with every site checked for real traffic, relevance and a clean outbound link profile
- Client portal for approving work before it goes live, with reports that open on calls, enquiries and revenue
Worth knowing
- It is priced for businesses that treat search as a sales channel. Small sites with modest goals will find cheaper WordPress SEO plans further down this list.
- No ranking guarantees. It says technical and on-page fixes usually move something in four to eight weeks, and bigger gains take three to six months.
SEO Engico's revenue-tracked SEO service
No. 2
2. Seahawk
- Best for
- WordPress sites that want a fixed monthly SEO plan with every deliverable listed
- Based in
- Boston, Massachusetts, US
Seahawk says it has worked exclusively with WordPress for over 12 years, and its managed SEO service is built around that. One dedicated SEO manager runs a WordPress site audit, keyword research, on-page work, technical fixes, link building and monthly reporting, and the page spells out WordPress-specific jobs such as configuring your SEO plugin's title templates, schema types, XML sitemaps, breadcrumbs and canonical settings, plus GA4 and Search Console setup.
It is one of the few WordPress specialists that prints its prices. Plans run from $199 a month for Starter to $999 a month for Elite, per site, with a one-time setup fee of $250 to $500 that covers the baseline audit, keyword research, analytics setup, plugin configuration and a 90-day strategy document. There are no contracts, and you can upgrade, downgrade or cancel at any time.
What stands out
- SEO plugin configured end to end, from title templates to canonical settings
- Published plans per site, with no contracts
- Full client ownership of everything it delivers
Worth knowing
- The lower plans are tightly capped. Starter covers half an hour of work, up to five pages and up to five links a month, so competitive sites will need a higher tier.
- Its page says most clients see ranking movement within 60 to 90 days and significant traffic growth in three to six months.
No. 3
3. OuterBox
- Best for
- Mid-sized WordPress and WooCommerce sites that want SEO and developers in one team
- Based in
- Akron, Ohio, US
OuterBox has one of the most specific WordPress SEO pages around. It names the layers that cause trouble, from Gutenberg, Elementor, Bricks and Divi to Advanced Custom Fields, WooCommerce and SEO plugins such as Yoast, Rank Math and SEOPress, and the faults that follow: duplicate metadata rules, thin archive pages, tag and category sprawl, slow templates, bloated JavaScript, schema conflicts and redirect chains.
Its answer is to keep strategy and development connected. Work opens with an audit ranked by impact and effort, then a roadmap, template-level technical and on-page fixes so new pages ship ready to rank, an editorial calendar built from keyword and content-gap research, link building, WooCommerce catalogue work and Core Web Vitals. In-house WordPress developers help move fixes live, and reporting ties to conversions and organic revenue.
What stands out
- Detailed handling of page builders, ACF and SEO plugin conflicts
- In-house WordPress developers help ship the fixes
- Template-level on-page rules so new pages publish ready to rank
Worth knowing
- Its published SEO packages start at $2,000 a month, so very small sites may find a cheaper plan elsewhere on this list.
- It is a large agency selling SEO, paid media, design and development, so WordPress SEO is one specialism among many.
No. 4
4. Built Mighty
- Best for
- WooCommerce stores that want SEO from an official WooCommerce agency partner
- Based in
- Bainbridge Island, Washington, US
Built Mighty is a WordPress and WooCommerce development agency headquartered on Bainbridge Island, Washington, with more than ten years of development work behind it, and its SEO service is aimed at WordPress sites, WooCommerce and ecommerce stores. Its argument is that most agencies understand either SEO or WordPress development, and that as an official WooCommerce agency partner it brings both, so it can optimise the code as well as the content.
The service covers on-page work including duplicate content and canonical tags, technical SEO such as speed, mobile, URL structure, site architecture, indexing and HTTPS errors, local SEO through Google Business Profile, and link building. If you are not sure where to start, it offers SEO audits that it says take six to eight hours.
What stands out
- Official WooCommerce agency partner with in-house developers
- Strategies aimed at ecommerce sales, not only traffic
- Fixed-length SEO audit as an entry point
Worth knowing
- No SEO pricing is published.
- SEO sits alongside development, design, CRO and paid marketing, so expect a broad WordPress partner rather than an SEO-only shop.
No. 5
5. Dev-WP
- Best for
- UK businesses that want a WordPress build team to fix speed and technical SEO
- Based in
- Leeds, UK
Dev-WP is a Leeds WordPress design and development agency with a technical SEO service built for WordPress sites. It describes the work as fixing crawl issues and site structure, improving speed and security, and handling schema markup, mobile optimisation, URL structure and server issues, starting with a full audit of your site and a plan to deal with what it finds.
Because it builds WordPress and WooCommerce sites itself, its performance work goes into the code: removing unnecessary code, using lightweight themes and setting up advanced caching. It also lists page speed optimisation and SEO content creation as separate services under technical SEO, so you can start with the fixes and add content later.
What stands out
- WordPress developers doing the technical SEO, so fixes go straight into the code
- Performance work covers code clean-up, lightweight themes and caching
- Page speed and SEO content available as separate add-on services
Worth knowing
- No prices are published for its SEO services.
- Its SEO page is technical first and does not describe link building, so ask how authority would be built if you need it.
No. 6
6. Victorious
- Best for
- Brands that want WordPress SEO inside a wider SEO, content and AEO programme
- Based in
- San Francisco, California, US
Victorious is an SEO agency with a dedicated WordPress SEO service, part of a wider offer that combines SEO, content and web services into what it calls a search-first strategy. Its WordPress page lists seven strands of work: answer engine optimisation for AI Overviews and answer engines, SEO for site migrations, technical SEO, keyword research, on-page SEO, content creation and link building.
The technical work focuses on uncovering crawl issues and improving site speed, and its migration service is aimed at protecting search equity when a WordPress site moves. It also publishes its own research, including a quarterly search report, which is a useful way to judge its thinking before a first call.
What stands out
- AEO for AI Overviews and answer engines built into the WordPress offer
- Migration support to protect rankings when a site moves
- Publishes its own quarterly search research
Worth knowing
- Its WordPress page describes the service in general terms, so ask for specifics on your theme, page builder and SEO plugin in the proposal.
- No pricing is published on the page.
How to choose a WordPress SEO agency
Start with what is actually wrong. If your WordPress site is slow, bloated with plugins or fighting its theme, you need people who are comfortable in the code, which usually means a WordPress development agency with an SEO service, or an SEO agency that builds WordPress sites itself. If the site is technically fine but nobody finds it, the work is mostly content and links, and the platform matters less.
Then compare what you get each month in hours, pages, articles and links, not just the headline price. Ask to see the plugin settings they would change and how they test updates before they go live. And be wary of reports that celebrate green plugin scores. A good WordPress SEO agency reports on enquiries and sales, not on how happy Yoast or Rank Math looks.
Questions to ask before you sign
- What would you change in our theme, plugins and hosting before touching content?
- Will you configure our SEO plugin, and which archive and tag pages would you remove from the index?
- Do you test changes on a staging site before they go live?
- How many hours, pages, articles and links do we get each month?
- How will you report on enquiries and sales from organic search?
Frequently asked questions
Is WordPress good for SEO?
Yes. WordPress gives you clean URLs, full control of titles and metadata, and plugins for sitemaps and schema. Most WordPress SEO problems come from how a site is built and looked after, such as heavy themes and page builders, too many plugins, duplicate archive pages and slow hosting, rather than from WordPress itself.
What does a WordPress SEO agency do?
A WordPress SEO agency fixes the technical side of your site inside WordPress, from theme and plugin performance to SEO plugin settings, schema and indexing, then works on content and links so the right pages rank. The better ones also connect the work to GA4 and conversion tracking, so you can see which changes bring in enquiries.
Do I need Yoast or Rank Math for WordPress SEO?
You need one good SEO plugin, configured properly, not several. Yoast, Rank Math and AIOSEO all handle titles, sitemaps and basic schema. The plugin is a tool, not a strategy: a green score does not mean a page will rank, and a badly configured plugin can leave thin tag and attachment pages in Google's index.
How much does a WordPress SEO agency cost?
Published prices on this list range from Seahawk's $199 to $999 a month per site, through OuterBox's packages from $2,000 a month, to SEO Engico's $4,500 a month Growth retainer with link building and AI search work included. Many WordPress development agencies price SEO after an audit. The right budget depends on your competition and how much fixing the site needs.
Should my web designer handle my SEO?
Only if they offer SEO as a proper service with a monthly plan, content and reporting. Many designers install an SEO plugin at launch and stop there. A team that builds on WordPress and runs SEO properly can fix problems faster, though, because it can change the code without waiting on anyone else.
Our verdict
Pick SEO Engico if you want one team that can build and fix WordPress sites and run the technical SEO, content and links against your enquiries. Choose Seahawk for a low-cost published plan from a WordPress-only company, OuterBox for a larger programme with in-house developers, Built Mighty for WooCommerce stores, Dev-WP for UK technical work, and Victorious if you want WordPress SEO inside a wider content and AEO programme.
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