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Next.js Development Company | Next.js Agency for Web Apps, SaaS and High-Performance Websites

Updated September 2026 · Written and maintained by the Progression Agency strategy team

Progression Agency is a Next.js development company building server-rendered websites, SaaS products and customer portals in Next.js and TypeScript, deployed on Vercel, Cloudflare or AWS, with the design, content and marketing to make them perform.

On this page · 11 sections
  1. What is Next.js development?
  2. Next.js development services
  3. Key features and components
  4. Common integrations
  5. Performance and SEO standards
  6. Our next.js development process
  7. How much does Next.js development cost?
  8. Technology we typically use
  9. Mistakes to avoid
  10. Why choose Progression Agency for next.js development?
  11. Related services

The short answerNext.js is the React framework used for most production React applications: it adds routing, server rendering, static generation, Server Components, image optimization and API routes to React. A Next.js development company designs and builds applications and websites on it, chooses the rendering strategy per page, and deploys to Vercel or another host. Planning figures: a Next.js marketing site $20,000-$80,000, a Next.js web application $50,000-$250,000.

Cost ranges are US planning figures, not quotes.

Next.js development searches
Companies search for a Next.js agency when a React app must rank and load fast, when migrating from WordPress or Gatsby, or when building a SaaS product on a modern stack.

What is Next.js development?

Next.js development is building websites and web applications with Vercel’s React framework, using its App Router, Server Components, server-side rendering and static generation to deliver fast, indexable pages, and its route handlers and middleware for back-end logic. It is the standard choice for React products that must perform in search and on mobile.

Next.js is the right tool for public, SEO-dependent React products and for teams that want routing, rendering and data conventions decided for them. Plain React with Vite remains fine for internal tools. See Next.js vs React and Astro vs Next.js for when a content framework is the better fit.

Hosting matters: Next.js runs best on Vercel and well on Netlify, Cloudflare and AWS; see hosting for React and Next.js and Vercel vs Netlify.

SSR — Server rendering. Fast, indexable pages..
ISR — Incremental regeneration. Static speed, fresh content..
RSC — Server Components. Less JavaScript shipped..
API — Route handlers. Back end in the same repo..
CMS — Headless CMS. Sanity, Storyblok, WordPress..
Host — Vercel-first. Previews and edge network..

Next.js development services

Projects we are most often asked to build.

Next.js websites and marketing platforms

High-performance marketing sites with a headless CMS (Sanity, Storyblok, Payload or headless WordPress), built for Core Web Vitals and SEO; see custom website development.

Next.js SaaS and web applications

Multi-tenant products with authentication, billing, dashboards and APIs on the App Router; see SaaS development.

Customer portals and dashboards

Logged-in experiences with role-based access, data visualization and integrations; see web portal development.

Ecommerce storefronts

Headless storefronts on Shopify (Hydrogen or Storefront API) or commerce APIs with fast product pages and custom checkout flows.

Migrations to Next.js

From WordPress, Gatsby, Create React App, Angular or legacy stacks, with redirect maps and content migration; see website migration services.

Next.js performance and architecture reviews

Audits of rendering strategy, bundle size, caching and hosting cost with a prioritized fix list.

Audits of rendering strategy, bundle size, caching and hosting cost with a prioritized fix list.

Key features and components

What separates a useful build from a costly one.

Next.js development: key components
FeatureWhy it matters
App Router and Server ComponentsSmaller bundles, faster loads
Per-route rendering strategyStatic, ISR, SSR chosen deliberately
TypeScriptReliability at scale
Image and font optimizationBetter LCP
Structured data and metadata APISearch visibility
Edge middlewarePersonalization, redirects, auth checks
Preview deploymentsStakeholder review before launch
ObservabilityErrors, performance, analytics

Common integrations

Where the value usually comes from.

Common integrations
SystemWhat we connect
CMSSanity, Storyblok, Payload, Contentful, headless WordPress
AuthNextAuth/Auth.js, Clerk, Auth0
DataPostgreSQL (Neon, Supabase, RDS), Prisma, Drizzle
CommerceShopify Storefront API, Stripe
SearchAlgolia, Meilisearch, Typesense
HostingVercel, Cloudflare, AWS Amplify

Performance and SEO standards

Next.js makes fast, indexable pages possible; the build has to deliver them.

  • Rendering follows the Next.js documentation: static or ISR for content, server rendering for dynamic pages, client components only where interactivity needs them.
  • Every release is measured against Core Web Vitals thresholds on mobile.
  • Metadata, canonical tags, sitemaps and schema.org structured data are generated by the framework’s metadata API.
  • Accessibility to WCAG 2.2 AA and security to the OWASP Top 10.
How we deliver next.js development
Choosing static, ISR or server rendering per route is the single decision that most affects speed, cost and SEO.

Our next.js development process

We plan the routes and rendering strategy, design the interface, build on the App Router with TypeScript and tests, connect the CMS and services, deploy with previews to Vercel or your cloud, and optimize for Core Web Vitals and search after launch.

How much does Next.js development cost?

As US planning figures: a Next.js marketing site with a headless CMS $20,000-$80,000; a Next.js web application or portal $50,000-$150,000; a SaaS product first release $120,000-$250,000; migrations from $15,000. Hosting on Vercel commonly runs $20-$500 a month for business sites.

Next.js development cost ranges (planning figures)
ScopeTypical rangeTimeline
Next.js marketing site + headless CMS$20,000-$80,0006-12 weeks
Next.js web app or portal$50,000-$150,0003-5 months
Next.js SaaS (first release)$120,000-$250,0004-8 months
Migration to Next.js$15,000-$80,0004-12 weeks

Technology we typically use

Mainstream, maintainable choices.

Technology we typically use
LayerChoice
FrameworkNext.js (App Router), React 19, TypeScript
StylingTailwind CSS, shadcn/ui
DataPostgreSQL, Prisma or Drizzle, TanStack Query
CMSSanity, Storyblok, Payload
TestingPlaywright, Jest, Testing Library
HostingVercel, Cloudflare, AWS

Mistakes to avoid

Common causes of overruns and low adoption.

  • Rendering everything on the server and paying for it in hosting bills.
  • Rendering everything on the client and losing search visibility.
  • Ignoring caching semantics of fetch and Server Components.
  • Using Next.js for a content site that Astro would serve better.
  • Skipping preview deployments and shipping untested changes.
  • Hosting without estimating the monthly cost.
Fast — Next. Static and ISR by default..
Indexable — Next. Server-rendered HTML..
Typed — Next. TypeScript throughout..
Previewed — Next. Every branch gets a URL..
Hosted — Next. Vercel, Cloudflare, AWS..
Measured — Next. Core Web Vitals in CI..

Why choose Progression Agency for next.js development?

Engineering, design and go-to-market in one team.

  • Next.js from architecture to hosting, including rendering strategy and cost.
  • Design, content and SEO in the same team as engineering.
  • Migrations that keep rankings through redirect maps and testing.
  • You own the code, data and accounts.
  • Headquartered in New York City, working nationwide.

See React development company, front-end development company, headless CMS vs traditional CMS, SSR vs CSR and web app development company.

Ready to scope it?

Tell us the users, workflow and systems involved. We will propose a first release and planning estimate.

Get a proposal

Getting found in search

AI, AEO and what is changing

Paid media and lead generation

Websites and design

Choosing and working with an agency

Software and app development

Web development, platforms and hosting

Social, content and brand

By industry and by situation

Frequently asked questions

What is a Next.js development company?
An agency that designs, builds, deploys and maintains websites and applications on Next.js, Vercel’s React framework.
Why choose Next.js over plain React?
Next.js adds server rendering, static generation, routing, image optimization and API routes, which public and SEO-dependent products need.
Is Next.js good for SEO?
Yes; server-rendered and static pages are fully indexable and fast.
How much does a Next.js website cost?
$20,000-$80,000 for a marketing site with a headless CMS, as a planning figure.
How much does a Next.js app cost?
$50,000-$150,000 for a web app or portal, $120,000-$250,000 for a SaaS first release.
Where do you host Next.js apps?
Vercel by default; Cloudflare, Netlify or AWS when cost, policy or scale calls for it.
Can you migrate my WordPress site to Next.js?
Yes, keeping WordPress as a headless CMS or moving content to Sanity or Storyblok, with redirects preserved.
Can you migrate from Gatsby or Create React App?
Yes; both are common migrations to the Next.js App Router.
Do you use the App Router and Server Components?
Yes, on new builds; we migrate Pages Router apps when it benefits them.
Which CMS works best with Next.js?
Sanity, Storyblok, Payload and headless WordPress are our usual choices; see best CMS platforms.
Is Next.js suitable for ecommerce?
Yes, especially headless Shopify storefronts and custom catalogs.
Do you build the back end?
Yes, with Next.js route handlers for light back ends and Node.js, Django or .NET services for heavier ones.
Should I use Astro instead?
For content-only sites, often yes; for applications, Next.js. See Astro vs Next.js.
How long does a Next.js project take?
6-12 weeks for a site, 3-8 months for an application.
Do you provide dedicated Next.js developers?
Yes, on monthly engagements.
Who owns the code and hosting?
You do; everything is set up in your accounts.
Where is Progression Agency located?
New York City, serving clients nationwide.
How do I start?
Send a brief or repository link; we return a written proposal with rendering strategy and hosting cost.

Need software built?We design, build and support custom software, web apps and SaaS platforms, with a written scope first.

Get a software proposal

Get a free marketing proposal

Tell us what you are trying to grow and we will come back with a plan, not a pitch deck. Same-day reply on weekdays.

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