Top 10 Technical SEO Agencies to Improve Your Website Performance

Technical SEO agencies

Table of content

Introduction: The Role of Technical SEO Agencies 

SEO has moved beyond just stuffing keywords into content or building backlinks. It’s 2025 and search engines are way smarter than ever, favoring fast, well-structured, and user-friendly websites. But without a strong technical foundation, even the best content can go unnoticed. This is where technical SEO agencies come in. They fine-tune critical elements like crawlability, indexing, site speed, structured data, and security, ensuring that search engines can efficiently access and rank your site.

So, does it mean technical SEO is just about pleasing algorithms?

Absolutely not! It’s about creating a seamless, lightning-fast experience for your users. After all, a website that loads in the blink of an eye and delivers exactly what visitors are looking for is a website that converts. If you are aiming for the long-term success of your business, then you shouldn’t ignore technical  SEO. A poorly structured website with slow load times and broken links can lead to low rankings and poor user experience. 

So, how do you find the right agency to handle these complexities? With so many options out there, which agency is right for you? Let’s explore the 10 best technical SEO agencies that can help optimize your website for better visibility and success.

10 Best Technical SEO Agencies to Improve Website Performance 

When it comes to choosing the right technical SEO agency, there are internal and external factors heavily influencing your decision. The options are vast and it is only natural to get overwhelmed easily. So, we made this process a little easier for you and curated a list of the top 10 best technical SEO agencies in the market. 

We focused on four key factors that define the best in the industry:

  • Technical SEO Expertise (Site architecture, page speed optimization, crawlability, structured data, and Core Web Vitals)
  • Industry Experience (A proven track record in multiple industries, understanding their unique SEO challenges)
  • Collaboration and Communication (How closely they work with clients, providing transparency and insights)
  • Measurable Business Results (Driving real business growth through organic traffic, leads, and conversions)

1.PipeRocket

PipeRocket is a fast-growing digital agency specializing in technical SEO, paid media, and content marketing for B2B businesses. It enables aspiring companies to increase revenue and lower CAC through customized account-based marketing and demand generation services.

It takes an integrated approach combined with AI-driven analytics to rapidly scale your business growth. Its expertise lies in implementing full-length marketing activities such as go-to-market planning, performance marketing, account-based marketing, SEO optimization, and targeted content marketing. 

PipeRocket follows 3 foundational strategies to empower your growth pipeline: 

  • Identify your Ideal Customer Profile (ICP) using Total Addressable Market and Channel Fit Analysis.
  • Amplify your qualified leads (PLG/SLG) via multi-channel demand generation strategies such as Paid, ABM, and SEO.
  • Enhance your qualified leads and reduce customer acquisition costs by targeting decision-makers through multiple touchpoints.
Best forCompanies looking for an integrated SEO and demand-generation strategy at an affordable pricing plan. 
ProsDeep expertise in technical SEO and demand generationAgile, data-driven approachRICE framework (Reach, Impact, Confidence, and Effort) to prioritize campaigns Strong focus on user experience and conversion optimization
ConsPrimarily focused on B2B businesses
ClientsSpendfloStorylane
ReviewsClients praise PipeRocket’s technical expertise, transparency, and focus on ROI.
PricingCustom pricing based on business needs.

2.WebFX

WebFX is a leading digital marketing agency known for its custom omnichannel marketing strategies, led by experts and backed by data. It offers in-depth SEO audits, Core Web Vitals enhancements, and AI-powered analytics to improve website rankings. It works with multiple niches, including finance, food and beverage, and legal. While it’s not strictly a technical SEO agency, it can help you fix common tech issues like site speed by conducting technological SEO audits. 

Best forComprehensive SEO services, including technical and content-driven strategies.
ProsExtensive in-house SEO toolsCustom reporting dashboards
ConsPremium pricing for high-end services
ClientsThe YMCAFuji FilmsWrangler
ReviewsClients praise WebFX’s SEO expertise and how it helps improve unsolicited lead quality. 
PricingCustom pricing based on business needs.

3.Smart Sites

SmartSites is a full-service digital marketing agency that specializes in SEO, PPC, and web design. Its team specializes in creating customized digital strategies that are data-driven and designed to scale, delivering both short-term improvements and long-term growth. The agency takes a holistic approach integrating all facets of digital marketing and helps create a cohesive strategy that aligns with business goals.

Best forBusinesses seeking web design in addition to SEO and/or PPC
ProsStrong customer supportProven track record with SMBsOffers both SEO and PPC integration
ConsCustom pricing may be expensive for startups
ClientsRockville InteriorsChicago WatermarkMind and Body Health Center
ReviewsClients appreciate the agency’s expertise, knowledge, and overall customer service. 
PricingPricing is tailored to business needs.

4.Salt Agency

Salt Agency is a leading digital marketing and SEO agency based out of the UK. Its expertise lies in blending industry-leading technical expertise with aggressive organic growth strategies. Salt Agency specializes in site architecture, crawlability, and international SEO, making it a top choice for global brands and eCommerce businesses. It goes beyond the ‘factory’ SEO agency model to achieve results in organic search.

Best foreCommerce and enterprise SEO strategies
ProsDeep technical expertiseStrong focus on site audits and migrationsExpertise in international SEO
ConsLimited focus on content marketing
ClientsTCGplayerThe University of LeedsCoralogix
ReviewsClients appreciate their proactive approach to technical SEO challenges
PricingCustom pricing based on clients’ needs

5.Onely

Onely is a leading technical SEO agency that specializes in improving website infrastructure, crawlability, and performance. Its expertise lies in JavaScript SEO, indexing, and Core Web Vitals optimization and its team communicates directly with your engineering team. Onely takes a transparent, data-driven approach and practical innovative strategies to help you achieve organic growth. It is also Google AI-ready, meaning their audit process analyzes if your website is ready for AI-powered search. 

Best forWebsites with complex technical SEO challenges
ProsAdvanced technical SEO solutionsStrong focus on JavaScript SEO and indexabilityIdeal for large-scale websites with complex architectures
ConsMay not be ideal for businesses with basic SEO needs
ClientsRealtor.comeBay Classified GroupsMiele
ReviewsHighly rated for its in-depth SEO audits and technical problem-solving skills
PricingCustom pricing based on project scope and needs

6.Straight North

Straight North is an expert digital marketing agency that leverages data, tech, and exceptional service to deliver revenue growth. It is known for its well-rounded digital marketing service with a strong technical SEO foundation. The agency takes an approach that integrates SEO with conversion optimization to ensure organic traffic translates into business growth. Straight North has been operating in the digital marketing field for over 25 years and they have a proven track record working with organizations of all types and sizes.

Best forBusinesses looking for a mix of SEO, PPC, and lead generation
ProsStrong expertise in lead generationComprehensive SEO and PPC strategiesData-driven approach with real-time reporting
ConsMore focused on lead generation than deep technical SEO
ClientsCloverDFINAffy Tapple
ReviewsWell-regarded for their integrated marketing approach and ROI-driven campaigns
PricingCustom pricing is available upon request on their website

7.Pearl Lemon

Pearl Lemon is an SEO-focused agency based out of London and New York. It provides affordable, high-quality technical SEO services and specializes in site audits, page speed optimization, and structured data implementation. It helps businesses generate leads through various digital marketing strategies like SEO, PPC ads, social media marketing, email nurturing, etc, and implements full-fledged campaigns from scratch that align with business goals. 

Best forStartups and growing businesses looking for budget-friendly technical SEO
ProsBudget-friendly digital marketing servicesStrong technical SEO auditsTransparent reporting and consultation
ConsSmaller team compared to larger agencies
ClientsFounders FactoryEmerge OneSubtle Square
ReviewsPraised for their personalized approach and cost-effective solutions
PricingPackages start at $2,500/month

8.Thrive

Thrive is a full-service digital marketing agency that offers comprehensive SEO services including technical audits, site speed enhancements, and mobile optimization. Its services also include PPC ads, copywriting, and CRO, along with expert web design and development services for both eCommerce and B2B companies. They are known for maintaining a customer-centric focus and helping clients achieve better rankings, increased traffic and conversions, and a higher ROI. 

Best forBusinesses looking for a full-service digital marketing agency with a strong technical SEO focus
ProsFull-service digital marketing expertiseStrong focus on local and technical SEODedicated account managers for transparency
ConsCan be pricier for small businesses and start-ups
ClientsThe Farah Law FirmNationwide ConstructionQuick Roofing
ReviewsHighly rated for customer service and delivering measurable SEO improvements
PricingCustom quotes are provided based on business needs

9.ROAST

ROAST is a UK-based digital agency known for its advanced analytics-driven SEO approach. It specializes in technical SEO, site migrations, and in-depth website audits. It uses cutting-edge technology to understand and work with Google’s algorithms and optimize websites accordingly.

In addition to its other services, ROAST also focuses on on-page and off-page technical SEO, such as domain infrastructure management, reporting, and insights.

Best forData-driven SEO strategies and enterprise-level SEO audits
ProsAdvanced analytics and SEO insightsStrong expertise in site migrationsCustom-built SEO dashboards
ConsHigher pricing compared to other leading agencies
ClientsCamelotAvevaAudible (An Amazon Company)
ReviewsWell-rated for strategic thinking and in-depth data analysis that boosts SEO performance. 
PricingCustom quotes are available upon consultation

10.Higher Visibility

Higher Visibility is a full-service agency that is known for maximizing clients’ bottom line with various digital marketing services like SEO, PPC, and website design. It offers a mix of technical SEO, content strategy, and local SEO services to improve online visibility. Its digital marketing strategies are backed by data and proven to drive business growth. The agency adopts foundational methods like custom-tailored strategies, laser-focused targeting, and transparent reporting. 

Best forBusinesses that need a balance of technical and local SEO
ProsStrong reputation in local SEOTechnical SEO expertise combined with content marketingHands-on client support with dedicated teams
ConsMay not be the best fit for global brands
ClientsHot WorxZiebartLawn Doctor
ReviewsHighly rated and appreciated for client satisfaction and local SEO success
PricingTailored proposal is available on request

How can a Technical SEO Agency Boost Your Online Presence?

Investing in a technical SEO agency increases the chances of your brand name standing out in the crowded online landscape. At its core, technical SEO optimizes the behind-the-scenes elements that search engines rely on to understand, crawl, and rank your site. From streamlining site architecture to ensuring mobile responsiveness, from resolving crawl errors to implementing structured data, a technical SEO agency fine-tunes every cog in the machine to ensure peak performance. 

Here are some compelling reasons why hiring a technical SEO agency is a smart move:

Reason 1: Fixing the hidden SEO issues that hurt your rankings

Many SEO issues go unnoticed because they’re buried deep within your website’s structure. Things like crawl errors, duplicate content, broken links, and indexability issues can silently ruin your rankings. A technical SEO agency conducts in-depth site audits to uncover these hidden problems and implement fixes that help search engines crawl and index your site more efficiently.

Reason 2: Optimizing for speed, core web vitals, and mobile-friendliness

Page speed and user experience have become critical ranking factors, thanks to Google’s Core Web Vitals update. Slow-loading pages lead to higher bounce rates, lower engagement, and lost revenue. Technical SEO agencies optimize server response times, image compression, caching strategies, and mobile performance to ensure your site meets Google’s latest standards and keeps visitors engaged.

Reason 3: Future-proofing your website against algorithm updates

Search engine algorithms are constantly updating, and what works today may not work tomorrow. Technical SEO agencies stay ahead of industry trends and algorithm updates. They ensure your website remains compliant with Google’s best practices and help you adapt proactively so you don’t suffer sudden ranking drops when a major update rolls out.

Reason 4: Improving site architecture and internal linking for better UX

A well-structured website doesn’t just help with SEO ranking. It’s essential for user experience and conversions. Technical SEO agencies refine your site architecture, navigation, and internal linking structure to make information easy to navigate for both search engines and users. This improves crawl efficiency, boosts page authority, and enhances the overall usability of your website.

Reason 5: Getting data-driven insights and actionable strategies

Technical SEO is not a guesswork. It is backed by data, analytics, and performance tracking. Any good agency provides detailed reports, insights, and recommendations based on real-time metrics. They help you track organic traffic growth, keyword performance, crawl stats, and conversion improvements, ensuring every optimization delivers measurable results. Their reports are specific to your website performance and they suggest improvements that guarantee tangible results in the long run. 

Services Offered by Technical SEO Agencies

Now that you know why hiring a technical SEO agency is essential, let’s explore what services they offer. 

1.Comprehensive SEO audits

SEO audit is the first step in diagnosing what’s working and what’s not. It helps uncover the hidden issues that might be holding your website back in search rankings. Technical SEO agencies analyze your site’s structure completely from crawlability and indexing to site architecture and backlink profiles to:

  • Identify issues like broken links, duplicate content, or improper redirects that could be dragging your rankings down. 
  • Examine URL structures, internal linking, XML sitemaps, and robots.txt configurations.
  • Provide actionable insights and data-backed solutions that can enhance your website’s SEO performance.

2.Website speed optimization

Google places heavy emphasis on page speed and Core Web Vitals, which means a slow website can tank your rankings and frustrate visitors. A site that loads in under 3 seconds can significantly improve rankings, engagement, and conversions. Technical SEO agencies understand this and work towards speed optimization to ensure your site loads quickly across all devices. They focus on:

  • Improving load times for better user experience and reduction of bounce rates.
  • Optimizing images, caching, and server performance to speed up page loads.
  • Aligning site speed with Google’s Core Web Vitals to ensure compliance with Google’s latest ranking factors.

3.Structured data implementation

Structured data (Schema markup) helps search engines better understand your content, increasing the chances of enhanced SERP features like rich snippets, FAQs, and knowledge panels. Any good technical SEO agency knows this and does the following:

  • Implements schema for products, articles, reviews, events, and FAQs, making your content more appealing in search results.
  • Structures data correctly so that Google can display rich snippets such as star ratings, price details, and event dates directly in search results.
  • Enables rich snippets and improves SERP features to have higher click-through rates (CTR), leading to more organic traffic.

4.Mobile SEO and responsiveness

People consume most of the information via mobile phones. Plus, with Google’s mobile-first indexing, your website must be fully optimized for mobile devices. A technical SEO agency ensures your site performs flawlessly across all screen sizes and takes necessary measures like:

  • Fixing mobile usability issues such as touch elements too close together, unoptimized fonts, and viewport errors.
  • Improving page speed via AMP (Accelerated Mobile Pages), responsive images, and server-side rendering (SSR), for mobile users who expect fast-loading pages.
  • Aligning site design with mobile-first indexing as Google crawls and indexes the mobile version of your site first.

5.Fixing crawl errors and indexation issues

If search engines can’t crawl or index your content properly, your pages won’t appear in search results, no matter how great the content is. While conducting the audit, technical SEO agencies do the following exercises to fix crawl errors:

  • Address broken links, duplicate content, and 404 errors to improve site health.
  • Optimize robots.txt and XML sitemaps to help search engines find important pages efficiently.
  • Improve internal linking and navigation to boost page authority and enhance user experience. 

How to Choose the Right Technical SEO Agency for Your Business?

Not all technical SEO agencies operate at the same level. Some may excel at conducting in-depth audits but lack execution capabilities, while others might be great at fixing technical issues but fail to align their strategies with your broader business objectives. 

With so many agencies offering similar services, how do you separate the great from the mediocre? Here’s a carefully curated list to find the best one for your business:

1.Evaluate their technical expertise

A strong technical SEO agency should have deep knowledge of website crawlability, indexing, and Core Web Vitals, among other key SEO factors. Their expertise determines how well they can optimize your website’s foundation and help you drive better conversions. Look for the below criteria:

  • Proven experience with crawlability, indexing, and Core Web Vitals
  • Expertise in handling JavaScript SEO, server log analysis, structured data implementation, site migrations, and Core Web Vitals optimization.
  • Past case studies showing their impact on real client projects. 

If needed, request a technical audit sample to see how detailed and actionable their insights are before hiring them.

2.Check their industry experience

While technical SEO principles apply across industries, different niches have unique challenges. eCommerce sites need strong crawl budget management, SaaS companies require technical content optimization, and publishers need fast-loading AMP pages.

  • See if they have worked with businesses in your niche. 

An agency familiar with your industry will understand your competitors, audience behavior, and SEO pain points better than a generalist firm.

  • Understand their approach to industry-specific challenges

For example, if you’re in B2B SaaS, your agency should know how to optimize complex site architectures, subdomains, and API documentation for SEO.

3.Assess communication and transparency

Technical SEO is complex, and not all agencies communicate findings in an easy-to-understand way. You need an agency that keeps you informed with clear reports and actionable insights.

  • Ensure they provide clear and detailed reports and updates covering crawl errors, indexation improvements, site speed fixes, and ranking progress. 
  • Look for an agency that values collaboration and acts as an extension of your team. Ensure they work closely with your developers, content team, and marketers for a smooth execution.

4.Consider their tools and technology

A great technical SEO agency leverages advanced, AI-driven tools to find and resolve technical issues faster and better.

  • Verify the SEO tools and software they use

Top agencies use Google Search Console, Screaming Frog, Ahrefs, Semrush, Sitebulb, and server log analyzers to diagnose technical bottlenecks.

  • Ensure they rely on data-driven insights

An agency that relies on real-time crawl data, Core Web Vitals reports, and AI-driven SEO is more likely to provide accurate and strategic recommendations. Ask if they offer custom dashboards that track your technical SEO performance over time.

5.Understand their pricing and ROI

Technical SEO is an investment, not an expense, but you need to ensure you’re getting the right value for your budget. Any good agency provides you with a breakdown of costs so you know exactly what you’re paying for, whether it’s site audits, ongoing optimization, or consulting.

  • Some agencies charge a flat monthly retainer, while others work on a project-based or performance-based model. Ensure their pricing aligns with the scope of work they provide.
  • Avoid agencies that focus only on quick fixes. A great agency prioritizes sustainable SEO strategies that drive long-term organic growth.

How PipeRocket Delivers High-Impact Technical SEO and Conversions

PipeRocket is a growing digital marketing agency and a performance-driven growth partner for companies looking to scale their demand generation and SEO efforts. Unlike traditional agencies that focus solely on rankings, PipeRocket takes a full-funnel approach to SEO, ensuring every technical optimization aligns with measurable business outcomes.

PipeRocket has been helping many brands build a strong digital foundation that drives real revenue impact. Their expertise spans industries like SaaS, fintech, and enterprise technology, making them a go-to partner for companies with complex sales cycles and high-value customer segments. What sets PipeRocket apart is its agile methodology and innovative mindset. They go beyond generic SEO checklists, using data-driven, and AI-led insights, automation, and proprietary frameworks to solve technical roadblocks that prevent websites from reaching their full potential.

A case study on how PipeRocket boosted SEO conversions for a leading fintech company

A top fintech company in India had a strong content strategy (1,000+ blog posts and a dedicated writing team). However their traffic had plateaued, and conversions were low among their enterprise target audience. The main challenges they faced were a lack of keyword alignment in blog content and a focus on thought leadership rather than decision-maker intent.

PipeRocket’s approach

The PipeRocket team used in-house AI-driven analysis to align 70% of pages with high-value enterprise search queries. They segmented content into Top-of-Funnel (awareness) and Bottom-of-Funnel (decision-making) assets and created checklists, guides, and in-depth resources to capture enterprise prospects with longer sales cycles.

Results (After 6 Months)

  • Significant increase in organic traffic and high-intent conversions.
  • More ICP-aligned leads engaging with new content assets.
  • Strengthened content’s role in driving enterprise sales.

By mapping keywords to business needs and restructuring content, PipeRocket helped the fintech company attract and convert the right audience. They proved that technical SEO is about more than rankings, it’s about revenue impact.

Closing Thoughts

Technical SEO is a strategic lever that can take your business to new heights. Not all agencies can pull off a comprehensive, strong technical SEO strategy. You need a reliable agency as a partner who understands that behind every technical fix, there’s a bigger picture. At PipeRocket, we don’t just focus on improving rankings. We aim to create a real, measurable impact that drives your business forward. Whether it’s through faster page loads, smoother user experiences, or data-driven optimization, we ensure your site is primed to perform in the competitive B2B space. 

If you want to elevate your digital presence and turn traffic into revenue, let’s make it happen!


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Frequently Asked Questions

The cost of technical SEO services can vary significantly depending on factors such as the agency’s expertise, the scope of the project, the size of the business, and the complexity of the website. Here are some common pricing models:

  • Hourly rates- range from $100 to $300 per hour, though some high-end agencies may charge even more.  
  • Monthly retainers- prices usually start at around $1,000 per month and can range up to $10,000 or more.
  • Project-based pricing- Smaller projects might cost around $2,000 to $5,000, while larger, more complex websites or audits could go up to $15,000 or more.
  • E-commerce websites or large enterprises- prices can start from $5,000 per month and go into the tens of thousands.

Technical SEO agencies rely on a variety of tools to optimize websites, analyze performance, track rankings, and ensure websites are fully optimized for search engines. Some of the most commonly used tools include:

  • Crawling and auditing tools- Screaming Frog SEO Spider, Sitebulb, DeepCrawl
  • Keyword and ranking tools- Google Search Console, Ahrefs, SEMrush
  • Page speed and optimization- Google PageSpeed Insights, GTmetrix, Pingdom 
  • Mobile optimization tools- Google Mobile-Friendly Test, BrowserStack
  • Backlink analysis tools- Majestic, Moz Link Explorer
  • Analytics and reporting- Google Analytics, Data Studio

Technical SEO agencies measure success using a combination of metrics and KPIs (Key Performance Indicators) to evaluate the effectiveness of their efforts. The success of a technical SEO campaign isn’t just about fixing errors. It’s about delivering tangible results that improve website performance and drive more qualified traffic. Some key ways they measure success include:

  • Organic traffic
  • Keyword rankings
  • Page load speed
  • Mobile usability
  • Site health and technical errors
  • Bounce rate and time on page
  • Backlink profile
  • Conversions and revenue
  • Indexing and crawlability
  • Core Web Vitals

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