Sanity Development Agency: Build, Migrate, and Scale.
Builds, Migrations & Support
FocusReactive is an engineer-led, AI-native Sanity Development Agency and an official Sanity.io partner. We specialize in headless CMS architectures to build high-performance, scalable platforms using Sanity and Next.js/React, supporting everything from marketing websites to complex eCommerce storefronts.
Whether you need a complex enterprise build from scratch, a seamless legacy CMS migration, or ongoing platform support, our experts deliver architecture that scales without constant developer bottlenecks. As a premier Sanity Agency, we provide complete Sanity development services—from custom Studio setups and schema configuration to third-party integrations and marketing workflow automation for your editorial teams.
Sanity CMS Services
Sanity CMS development services from a dedicated Sanity agency
Custom Builds & Architecture
We don't just set up Sanity; we architect it for scale. We design modular content schemas, configure custom Studio interfaces, and integrate Sanity with Next.js/React frontends to deliver lightning-fast, SEO-optimized web platforms.
Seamless CMS Migrations
Moving from WordPress, Contentful, or a legacy monolithic CMS? We handle the entire migration pipeline—preserving your SEO rankings, mapping complex data structures, and ensuring zero downtime while training your team on the new Sanity Studio.
Ongoing Support & Content Ops Packages
Launching is just the beginning. We offer dedicated support retainers for enterprise Sanity projects. From developing custom plugins and LLM automations to adjusting editorial workflows as your marketing team grows, our Sanity Agency provides ontinuous technical governance.
We push beyond the operational holes of default CMS AI offerings by engineering custom pipelines directly into Sanity that perfectly match your business reality.
02
Visual Workflows That Actually Scale
Working with a dedicated Sanity Agency means we wire your design system's components directly into Sanity Studio so your editors manipulate living visual layouts instead of guessing what dead text fields will look like.
03
Your Rules, Not Sanity's Defaults
We architect the Studio interface entirely around the daily habits and specific approval processes of your content team, eliminating UI friction and drastically reducing time-to-market.
04
E-Commerce Driven by Headless Logic
Our engineering pushes Sanity far beyond standard configurations, wiring it deeply into your complex ERPs, headless e-commerce engines, and proprietary third-party APIs.
05
One Source, Every Channel
We model your Sanity Content Lake as a single source of truth engineered to feed your website, mobile app, email platform, and any future channel.
Sanity-Powered Experiences We Offer
1
3
Headless CMS Integrations
Migrating to Sanity isn't just about moving data; it's about re-architecting your stack. As your Sanity Development Agency, we build robust middleware, map complex legacy databases to Sanity’s schema, and integrate external APIs directly into the Studio.
We engineer multi-tenant, localized content platforms for global teams. Using advanced GROQ routing and Next.js App Router, we deliver personalized, region-specific content at the edge with zero layout shift (CLS).
We decouple your storefront from monolithic backends. We integrate Sanity with leading e-commerce platforms, using Next.js to build fast, scalable shopping experiences with synchronized inventory and custom checkout flows.
JSON Document Store. A real-time Content Lake where schemas live in your codebase, requiring zero database migrations.
Sluggish REST APIs prone to massive over-fetching.
GROQ / GraphQL. Frontends request exactly the nested data they need, minimizing payload size.
Traditional WYSIWYG editors output unpredictable HTML blobs, forcing dangerous rendering methods.
Portable Text. Rich text is stored as JSON arrays (AST) mapped directly to your custom React components.
Tight coupling between backend logic and UI rendering.
Fully Decoupled. Framework-agnostic JSON APIs engineered perfectly for Next.js App Router and edge-rendering.
Other CMSs we work with
Payload CMS
A full-stack TypeScript CMS and app framework. Offers custom schemas, authentication, file management, and advanced admin UI out of the box. View expertise
Storyblok CMS
A visual-first headless CMS combining a real-time visual editor with a component-based content model. View expertise
Directus
An open-source data platform that turns SQL databases into a fully configurable headless CMS. View expertise
Contentful
An enterprise-grade, cloud-native CMS offering robust APIs, localization, and structured content modeling. View expertise
Strapi
The leading open-source headless CMS. Built on Node.js, it offers a fully customizable admin panel, extensive plugin ecosystem, and complete data ownership through self-hosting capabilities.
Trusted by Innovators, Backed by Results
"Our main goal was to get a new website that met SEC compliance requirements while also being well set up for SEO. The FocusReactive team handled both the design and development using Sanity CMS and Vercel, and delivered a fully working site ready for launch. The process was smooth, and we now have a clean, reliable website that gives us a strong foundation for future growth."
Michael Koenig
Founding Partner at Financial Team
"FocusReactive has been an exceptional partner, delivering all our requirements ahead of schedule. Their team feels like an extension of ours, understanding our strategy and anticipating our needs. They helped us build two modern, SEO-friendly marketing websites that our marketing team can easily manage without relying on developers. The team is incredibly talented, responsive, and always takes pride in their work. Thanks to FocusReactive, we've been able to scale our marketing efforts more effectively. We couldn’t have asked for a better partner."
Mike Addonizio
VP of Marketing at Betway
Sanity Agency FAQ
Real answers to the questions we hear most as a Sanity agency
Sanity CMS is an open-source platform used to manage structured content. It features Sanity Studio, a customizable editing environment that supports real-time collaboration and content management across multiple channels.
Yes, Sanity CMS offers a free plan that includes the core features of Sanity Studio, hosted APIs, and collaborative editing. It’s ideal for developers and small teams starting with structured content. Paid plans add features like advanced API quotas, SSO, and enterprise support for scaling projects.
Sanity stands out for its real-time collaboration capabilities, highly customizable content studio, and powerful querying language, Groq, which allows for efficient content retrieval and management.
The timeline depends on three factors: the complexity of the content model, the level of Sanity Studio customization your editorial team needs, and whether we’re doing a migration or a new build. As a Sanity Agency with dozens of production deployments, we’ve found that a straightforward build runs about 6-8 weeks, while a migration from WordPress or Contentful typically takes 10–14 weeks..
Absolutely, Sanity CMS is designed for scalability and handles large-scale projects effectively with its robust infrastructure, making it suitable for both small and large enterprises.
Sanity allows for content migration from other platforms. It offers tools and documentation to facilitate a smooth migration process, ensuring minimal disruption.
Sanity is highly adaptable and supports a range of programming languages and frameworks used in web development, including JavaScript, React, Vue.js, and notably Next.js.
Sanity CMS is more flexible and developer-friendly than WordPress. It uses a headless architecture that separates content from presentation, making it faster, more scalable, and easier to integrate with modern frameworks like Next.js and React. WordPress CMS is easier for quick setup, but Sanity is better for teams that need performance, custom workflows, and structured content.
Many global brands use Sanity CMS, including Figma, National Geographic, Sonos, and Nike. These companies rely on Sanity for its flexibility, real-time collaboration, and ability to scale across multiple teams and websites. Sanity is also used by startups and agencies that need a fast, customizable content platform.
Think headless CMS are not customizable? We disproved this using Sanity
Sanity encourage to customize almost everything. Any Sanity module can be rewritten. This makes it possible to have your own combination of standard and custom components in your application.
A Deep Dive into Sanity's Visual Editing and Presentation Tool
Explore Sanity’s new Visual Editing and Presentation tool. See how these features make editing smoother, simplify content updates, and give developers and editors live previews right inside the CMS.
.png&w=1920&q=75)