Best Technical SEO Agencies for Indexing, Core Web Vitals and Migrations (2026)

Why choose Loopex Digital for Technical SEO?

Choose Loopex Digital for technical SEO when you want one team to audit the site and then ship the fixes. The work covers crawl and index control, Core Web Vitals, structured data and site migrations. During a website migration for a Latin American telecom company, monthly organic visits rose from 97,000 to 129,000. Keywords in the top 10 grew from 550 to 993 over the same project.

Loopex Digital pairs technical fixes with content and link building, so repaired pages can also earn rankings. For Drip Hydration, organic traffic grew 705%. The agency has 100+ SEO specialists, is based in Los Angeles and holds a 5.0 Clutch rating from 97 reviews. Retainers start at $1,500 per month on month to month terms. That setup suits a team that wants to test the work for a few months before a longer commitment.

Is Loopex Digital right for you?

Choose it if you want technical fixes shipped and reported next to traffic, without a long contract. Skip it if you only want an audit document for your own developers to work through.

What to ask Loopex Digital on the sales call

“Which audit fixes will your team ship, and which will need our developers?”

Why choose Skale for Technical SEO?

Choose Skale for technical SEO when you run a SaaS or B2B site and want technical work judged by signups and revenue. Each client team includes a dedicated Technical SEO Analyst. That analyst handles audits, page speed, schema, internal links, site architecture and migration support. Skale reports against SQLs, PQLs, qualified signups and revenue, and it holds a 4.9 Clutch rating from 16 reviews.

Skale is based in London, was founded in 2019 and names HubSpot, UserTesting, Personio and Appcues among its clients. Hourly rates run $100 to $149. Clutch reviewers credit Skale with finding crawl problems and weak content structure. They say the fixes led to traffic and conversion gains. Skale has no dated technical case study in our data. Ask for one before signing, ideally from a SaaS site close to yours in size.

Is Skale right for you?

Choose it if you run a SaaS or B2B site and want technical SEO judged by signups and pipeline. Skip it if you run a local business or a small online store.

What to ask Skale on the sales call

“Can you show a SaaS client's crawl or indexation numbers before and after your analyst's work?”

Why choose mvpGrow for Technical SEO?

Choose mvpGrow for technical SEO when you are a growth-stage B2B tech company that wants one partner for technical fixes and growth. Its audits look for crawl barriers, indexing gaps and performance issues. The team then ships structured data, speed work and internal link cleanup. mvpGrow holds a 5.0 Clutch rating from 10 reviews, and reviewers cite gains in traffic, visibility and qualified leads.

mvpGrow was founded in 2019, has 10 to 49 staff and is based in Kefar Sava, Israel. It works with cybersecurity, fintech, AI and ecommerce companies, and SpectralOps is a named client. Rates run $100 to $149 per hour. mvpGrow also sells content marketing and AI engine optimization, so technical work can sit inside a broader growth plan. Ask how the team splits time between technical fixes and growth work each month.

Is mvpGrow right for you?

Choose it if you are a B2B tech startup that wants technical SEO and growth work from one team. Skip it if you need a large migration team or ecommerce catalog experience.

What to ask mvpGrow on the sales call

“Which crawl or indexing problem did you fix for SpectralOps, and what changed afterward?”

Why choose Bluethings SEO Agency for Technical SEO?

Choose Bluethings SEO Agency for technical SEO when your site is JavaScript-heavy or about to change platforms. The Montreal team works with developers on site architecture, crawl efficiency, indexation and Core Web Vitals. Its case studies report iWave's organic traffic tripling in 6 months and Hurom's organic visibility rising 88%. Bluethings measures its work in rankings, organic visibility, organic traffic and qualified leads.

Bluethings SEO Agency was founded in 2021 and has 11 to 50 employees. It serves SaaS companies, ecommerce brands and content-heavy publishers. Meridian moved from position 24 to position 1, and Arielle saw qualified B2B leads rise 300%. Rates run $150 to $300 per hour. Bluethings has no Clutch rating in our data, so its results rest on its own case studies.

Is Bluethings SEO Agency right for you?

Choose it if your site runs on heavy JavaScript or faces a migration, and you want fixes made with your developers. Skip it if you want independent reviews before you hire, or a low hourly rate.

What to ask Bluethings SEO Agency on the sales call

“Which technical fixes tripled iWave's organic traffic, and how was the baseline measured?”

Why choose MADX Digital for Technical SEO?

Choose MADX Digital for technical SEO when you sell B2B SaaS or technology and want site structure work tied to Google and AI search. MADX covers website architecture, crawlability, internal linking and AI search compatibility. It also runs content, link building and digital PR. Monthly plans run $2,500 to $5,500, and MADX holds a 4.9 Clutch rating from 13 reviews.

MADX Digital is based in London, was founded in 2020 and has 11 to 50 staff. Named clients include MoonPay, Postalytics, Orderful and Thunes. MADX prices only by the month, which makes budgeting simpler than hourly billing. Reviewers mention transparent reporting and good project management. MADX has no dated technical result in our data. Technical depth is judged mainly from client reviews, so ask for a crawl or indexing example.

Is MADX Digital right for you?

Choose it if you are a B2B SaaS company that wants technical, content and AI search work on a fixed monthly budget. Skip it if you only need a one-off technical audit or a migration project.

What to ask MADX Digital on the sales call

“Which crawl or indexing fixes have you shipped for a SaaS client, and what changed in Search Console?”

Why choose SmartClick for Technical SEO?

Choose SmartClick for technical SEO when you run a B2B SaaS site and want an audit followed by full implementation. SmartClick reviews analytics and site health, walks through the findings on a call, then fixes crawlability, performance and broken links. For Adeva, organic traffic grew 250% over 18 months after technical fixes. SmartClick holds a 5.0 Clutch rating from 20 reviews.

SmartClick was founded in 2018, has 11 to 50 employees and is based in Skopje. Its technical work includes crawl and indexing fixes, site speed, mobile-first optimization, internal linking and XML sitemaps. Named clients include Adeva, AICO, StatusCast and Ocuco. Reviewers praise clear communication, on-time delivery and better technical health scores. SmartClick does not publish prices, so expect a quote after the first audit call.

Is SmartClick right for you?

Choose it if you run a B2B SaaS site and want the audit and the fixes from one team. Skip it if you need a published price before the first call.

What to ask SmartClick on the sales call

“Which fixes drove Adeva's 250% traffic growth, and how much came from technical work versus content?”

Why choose Concurate for Technical SEO?

Choose Concurate for technical SEO when you want content and technical fixes handled by the same people at a low hourly rate. The team fixes what it can directly and hands remaining code changes to your developers. For a corporate gifting client, Concurate cut site errors from 5,988 to 4. The site health score rose from about 73 to 90. Rates run $25 to $49 per hour.

Concurate is a B2B content marketing company founded in 2018. Its technical services cover audits, website migrations, indexation, structured data and page speed. Named clients include Triangle IP, PQAI, Xoxoday and GreyB. Concurate holds a 5.0 Clutch rating, but from only 2 reviews. Reviewers mention better visibility, more sign-ups and a strong grasp of B2B SaaS. Concurate suits teams that already have developers who can pick up the harder code changes.

Is Concurate right for you?

Choose it if you have developers in house and want content plus technical cleanup at a low rate. Skip it if you need an agency to ship every code change itself.

What to ask Concurate on the sales call

“Which of the 5,988 errors did your team fix directly, and which went to the client's developers?”

Why choose SEO Image for Technical SEO?

Choose SEO Image for technical SEO when mobile performance and page speed are your main problems. SEO Image audits sites with a mobile-first lens. It then works on image compression, lazy loading, server response time and viewport settings. It also adds schema so pages can qualify for rich results. SEO Image has worked since 2002 and holds a 4.9 Clutch rating from 4 reviews.

SEO Image is a small New York team of 2 to 9 people. It sells SEO and PPC, and reviewers mention better rankings, steadier lead flow and consistent communication. Rates run $200 to $300 per hour, the highest entry rate on this list. SEO Image has no dated technical case study in our data, so ask for mobile speed numbers from a recent client.

Is SEO Image right for you?

Choose it if your mobile pages are slow and you want a small, senior team on them. Skip it if you are on a tight budget or need a large site migration.

What to ask SEO Image on the sales call

“What mobile Core Web Vitals scores did a recent client have before and after your work?”

Why choose Straight North for Technical SEO?

Choose Straight North for technical SEO when you suspect server or code issues are slowing pages and blocking crawlers. Straight North audits server response times, redirect setups and inefficient code. It also fixes broken internal links, orphaned pages and robots.txt errors. Straight North has worked since 1997 and holds a 4.7 Clutch rating from 132 reviews, one of the largest review bases here.

Straight North has 50 to 249 staff, with offices in Chicago and Charlotte. It is a WP Engine Elite Partner and a Google Premier Partner. Reviewers mention gains in traffic, conversions and rankings, plus proactive problem solving. Rates run $100 to $149 per hour. Straight North has no dated technical result in our data. Ask for server response times from a recent audit before you compare quotes.

Is Straight North right for you?

Choose it if you think server setup, redirects or code are holding your site back. Skip it if you want a small specialist team that only does technical SEO.

What to ask Straight North on the sales call

“What server response time and crawl stats did a recent client have before and after your audit?”

Why choose OuterBox for Technical SEO?

Choose OuterBox for technical SEO when you run a large ecommerce catalog with crawl and duplicate content problems. OuterBox works on category structures, product schema and pagination. It also speeds up checkout pages and trims slow third-party scripts. OuterBox holds a 5.0 Clutch rating from 86 reviews. It won Best Large Integrated Search Agency at the 2025 US Search Awards.

OuterBox was founded in 2004 and has 250 to 999 staff across Ohio, Texas and Minnesota. Named clients include Dom Sub Living and Del's Plating. Reviewers cite large gains in traffic and conversions, plus on-time delivery. Rates run $150 to $199 per hour. OuterBox has no dated technical result in our data. Ask how many product URLs moved into Google's index for a recent catalog client.

Is OuterBox right for you?

Choose it if you run a store with thousands of products and crawl or speed problems. Skip it if you run a small lead generation site.

What to ask OuterBox on the sales call

“How many product URLs moved from excluded to indexed for a recent catalog client?”

Why choose Taktical Digital for Technical SEO?

Choose Taktical Digital for technical SEO when your site hierarchy and Core Web Vitals both need work. Taktical restructures site architecture so crawlers find important pages faster. It also fixes server issues such as slow database queries, weak caching and slow response times. Taktical holds a 4.7 Clutch rating from 52 reviews, and rates start at $50 per hour. That rate is one of the lowest among agencies with more than 50 reviews here.

Taktical Digital was founded in 2011, has 10 to 49 staff and is based in New York. Named clients include Naot Footwear Canada and Crate 61 Organics. Reviewers mention growth in revenue and conversions, plus responsive communication. Taktical won a 2025 Clutch award for digital marketing. It has no dated technical result in our data. Ask for Core Web Vitals scores from a client before and after the server work.

Is Taktical Digital right for you?

Choose it if you need site structure and speed fixed at a mid-range rate. Skip it if you need proof of Core Web Vitals results before you sign.

What to ask Taktical Digital on the sales call

“Can you show Core Web Vitals scores for a client before and after your server work?”

Why choose Coalition Technologies for Technical SEO?

Choose Coalition Technologies for technical SEO when you are moving to a new platform, domain or URL structure. Coalition maps redirects, protects link equity and checks that search engines can crawl the new structure. It also handles schema and speed work. Coalition holds a 4.8 Clutch rating from 156 reviews, the largest review base on this list, with rates from $50 per hour.

Coalition Technologies was founded in 2009, has 50 to 249 staff and offices in Los Angeles and Austin. It is a Google Premier Partner and a BigCommerce Elite Partner. Named clients include All Filters LLC and Rogue Origin. Reviewers praise timely delivery and responsive fixes. Coalition has no dated migration result in our data. Ask for traffic kept after a recent migration before you plan a platform move.

Is Coalition Technologies right for you?

Choose it if you are changing platform or domain and want an experienced team at a moderate rate. Skip it if you need a published migration result before you sign.

What to ask Coalition Technologies on the sales call

“What share of organic traffic did your last three migration clients keep in the first 90 days?”

Why choose Go Fish Digital for Technical SEO?

Choose Go Fish Digital for technical SEO when crawl errors and wasted crawl budget are hiding important pages. Go Fish audits site architecture and internal links. It fixes crawl errors, duplicate content and broken redirects, and it reviews backlink profiles for risky links. Go Fish holds a 5.0 Clutch rating from 13 reviews and has 250 to 999 staff. Its audits suit large sites where many pages sit outside Google's index.

Go Fish Digital was founded in 2005 and has offices in Raleigh and Burlington. It won a 2022 Google Premier Partner award. Reviewers mention strong communication, creativity and a collaborative style. Go Fish publishes no prices in our data and no dated technical result, so ask for crawl stats from a past project. Large sites with deep archives are the best fit for this kind of crawl work.

Is Go Fish Digital right for you?

Choose it if Search Console shows many crawl errors and you want a large team to clear them. Skip it if you need a published price to compare quotes.

What to ask Go Fish Digital on the sales call

“How many pages moved from crawled but not indexed to indexed on a recent project?”

Why choose LinkGraph for Technical SEO?

Choose LinkGraph for technical SEO when Google's mobile-first indexing is exposing weak mobile pages. LinkGraph works on viewport settings, touch elements and mobile rendering so crawlers index the mobile version properly. It also handles site speed, structured data, error fixes and XML sitemaps. LinkGraph holds a 4.9 Clutch rating from 94 reviews. Mobile-first indexing means Google ranks a site on its mobile version, so mobile rendering gaps cost rankings.

LinkGraph was founded in 2018, has 10 to 49 staff and is based in New York. Named clients include IFRC and InterActiva. Its recognitions include the US Search Awards and the Inc. 5000. Reviewers cite better rankings and traffic. Rates run $100 to $149 per hour. LinkGraph has no dated technical result in our data. Ask for mobile speed numbers from a recent client before you sign.

Is LinkGraph right for you?

Choose it if your mobile pages render poorly or load slowly and rankings have slipped. Skip it if your traffic is mostly desktop and your problem is a migration.

What to ask LinkGraph on the sales call

“Which mobile rendering issues did you fix for a recent client, and what happened to indexed pages?”

Why choose Searchbloom for Technical SEO?

Choose Searchbloom for technical SEO when structured data and rich results are your priority. Searchbloom adds schema markup so search engines understand page content, and it runs site audits for crawl and indexing issues. It also works on Core Web Vitals and load times. Searchbloom holds a 4.9 Clutch rating from 98 reviews, with rates of $100 to $149 per hour.

Searchbloom was founded in 2014 and has 10 to 49 staff. Named clients include Smartskip, Hyloris Pharmaceutical and Splunk. It appears on the Utah 100 list of fast-growing companies. Reviewers mention more traffic, leads and revenue, plus flexible project management. Searchbloom has no dated technical result in our data. Ask for rich result counts from a recent schema project before you compare quotes.

Is Searchbloom right for you?

Choose it if you want rich results from schema plus steady technical upkeep. Skip it if your main problem is a JavaScript framework or a large migration.

What to ask Searchbloom on the sales call

“How many pages gained rich results after your schema work for a recent client?”