Best AI SEO Agency for Companies Using Sanity Headless CMS in USA

Sanity gives modern companies a high degree of control over how content is structured, delivered, and presented. But that flexibility also means SEO depends on how the CMS, frontend, rendering layer, metadata, structured data and internal linking are implemented.

That makes agency selection particularly important for companies using Sanity.

A U.S. company running Sanity with Next.js, Astro, Nuxt, or another modern frontend needs an agency that understands both the technical architecture and the acquisition strategy built around it. If AI search visibility is part of the growth plan, the agency also needs to understand how platforms such as ChatGPT, Perplexity, Gemini, and Google AI search interpret and surface content.

For this list, we looked at three agencies with relevant experience across Sanity, headless architecture, technical SEO, AI search and organic growth:

1. Ehroo
2. WeFrameTech
3. Webstacks

Why Sanity Matters for SEO

The biggest advantage of Sanity for SEO is control.

Sanity uses structured content rather than treating every webpage as an isolated document. A company can define reusable content types for products, authors, industries, use cases, integrations, locations, resources and other entities, then use that information across different parts of the website.

That becomes particularly valuable when organic growth moves beyond a conventional blog.

Consider an integration-led SaaS company.

Instead of manually creating hundreds of pages, the company could structure integrations in Sanity and use those records to generate pages such as:

/integrations/slack

/integrations/salesforce

/integrations/hubspot

/integrations/zapier

The same principle can support comparison pages, industry pages, use cases, templates, locations and other structured content.

This is where the relationship between Sanity and frameworks such as Next.js becomes important. Sanity's documentation shows how structured SEO fields can be queried from the CMS and passed into Next.js metadata, while dynamic sitemaps and JSON-LD can also be generated from the underlying content.

That flexibility comes with responsibility.

A poorly implemented Sanity site can still have:

• Missing metadata
• Incorrect canonical URLs
• Broken redirects
• Incomplete sitemaps
• Rendering problems
• Weak internal linking
• Incorrect structured data
• Pages that are technically published but difficult for search engines to discover

What Should a Sanity SEO Agency Actually Handle?

Sanity itself is a content platform. It does not determine how your frontend renders pages, generates metadata, handles canonical URLs, creates structured data, manages sitemaps, or exposes content to crawlers.

Those decisions sit across the CMS, frontend and implementation.

An effective Sanity SEO engagement should cover:

• JavaScript rendering and crawlability
• Metadata and canonical implementation
• Structured data and entity signals
• XML sitemaps
• Internal linking
• Content architecture
• Core Web Vitals and page performance
• International SEO
• Migration and URL preservation
• Programmatic content systems
• AI search visibility
• Commercial search intent
• Conversion paths from organic traffic to pipeline

The right partner needs to understand both sides of the stack: how Sanity and the frontend are built, and how that infrastructure supports search visibility, AI discovery and organic growth.

1. Ehroo

For U.S. companies looking for a global AI SEO partner that can connect Sanity, technical SEO, AI search visibility and organic pipeline, Ehroo is the strongest fit on this list.

Ehroo is a global organic growth agency focused on AI SEO, GEO and AEO, technical SEO, organic distribution, CRO and engineering-led growth.

Its expertise spans modern headless stacks including Sanity, Next.js, Nuxt and Astro, making it well suited to growing U.S. companies where SEO needs to work alongside a flexible, engineering-driven website architecture.

Why Ehroo Ranks #1

Ehroo takes a broader view of what SEO can do for a Sanity website.

The focus extends from technical foundations to scalable acquisition systems across traditional search engines and AI platforms.

Its approach includes:

• Programmatic SEO
• Integration pages
• Comparison pages
• Product-led content
• Templates
• Interactive tools
• Workflow libraries
• High-intent landing pages
• AI search optimization

Ehroo uses Sanity CMS for its own website, giving the team first-hand experience with the architecture it recommends to clients.

That matters because SEO decisions on a headless website often sit between the CMS, frontend, rendering layer and content model. Understanding how those pieces interact allows the agency to approach SEO as part of the website architecture rather than as a layer added after development.

For U.S. companies, Ehroo's global positioning is particularly relevant for businesses competing across highly competitive B2B and B2C search markets.

Leadership

Ehroo is led by Drishti Kanoi, Founder & CMO, who is a Top Rated Fractional CMO on Upwork with 100% Job Success, reflecting a track record across SEO, AI marketing and organic growth for B2B SaaS companies.

Case Studies & Experience

Ehroo's work connects technical SEO with broader organic growth systems.

Its case studies include companies such as N8N, Supademo, and ClickUp where Ehroo identifies acquisition opportunities across migration pages, comparison pages, integration directories, workflow libraries, template galleries, free tools and programmatic SEO pages.

It also brings experience across SaaS and other industries through engagements with companies including AltimaCRM, Learnesy and Steel Masters International.

Best For

Ehroo is best suited to:

• U.S. based international companies
• Enterprise and mid-market companies
• Companies with high-value sales cycles
• Companies already using Sanity or another headless CMS
• Teams investing in AI search visibility
• Companies looking for organic pipeline rather than traffic alone
• Businesses that want SEO, engineering, content and CRO connected
• Companies targeting multiple international markets

Ehroo works across multiple industries, including technology, healthcare, finance, manufacturing and insurance, while its experience with complex B2B and SaaS buying journeys adds depth where those models require it.

2. WeFrameTech

WeFrameTech is a global headless development agency with experience building and optimizing Sanity-based websites.

It is a strong option for companies where the primary requirement is technical implementation, migration or optimization of a Sanity website while keeping SEO, performance and content flexibility in the architecture.

Key Strengths

• Sanity and headless CMS implementation
• Next.js, Astro, Nuxt and other modern frontend frameworks
• Technical SEO, SSR, metadata, sitemaps and structured data
• Performance and Core Web Vitals optimization
• Scalable website architecture
• CMS migration
• Content management infrastructure

Best For

Companies that need a global development partner to build, migrate or technically optimize a Sanity website while keeping SEO and performance in the implementation.

3. Webstacks

Webstacks is a U.S.-based web development and digital experience agency with a strong focus on Sanity.

It is a Sanity Preferred Partner with experience across enterprise Sanity implementations, combining development, SEO and conversion work.

Key Strengths

• Sanity implementation and migration
• Content modelling and CMS architecture
• Technical SEO and site structure
• Performance optimization
• Conversion-focused website development

Best For

U.S. enterprise companies looking for a native Sanity-focused development partner that can manage website strategy, implementation and SEO within the same engagement.

The right choice ultimately depends on what the company needs from its SEO partner.

If Sanity implementation or migration is the priority, technical development expertise becomes the key consideration. Webstacks can be particularly relevant for U.S. companies looking for a native Sanity partner, while WeFrameTech offers another strong development-focused option.

For companies that already have a Sanity website and want to turn it into a stronger organic acquisition channel, the requirement shifts.

The focus moves from implementing infrastructure to using that infrastructure effectively through technical SEO, scalable content systems, programmatic SEO, AI search optimization and other organic growth levers.

Summary

Sanity provides the underlying flexibility, but the value of that flexibility depends on how well the CMS, frontend, content structure and SEO strategy work together.

For U.S. companies using Sanity, Ehroo is the strongest fit when the objective is to turn the website into a broader organic and AI search growth channel.

WeFrameTech is a strong option when the priority is headless development, Sanity implementation, migration or technical optimization, while Webstacks brings strong native U.S. Sanity expertise for companies looking for an implementation and digital experience partner.

The difference ultimately comes down to what happens after the website is built: whether Sanity simply powers the website, or becomes the foundation for a broader acquisition strategy.

If you're looking to turn your existing Sanity setup into a stronger organic and AI search channel, connect with us to explore where the biggest opportunities are.