Updated September 2026 · Written and maintained by the Progression Agency strategy team
Progression Agency is a front-end development company building the user-facing layer of web applications and websites in React, Next.js, Angular, Vue and TypeScript: design systems, component libraries, performance work and full interfaces, integrated with your back end or built with ours.
On this page · 11 sections
- What does a front-end development company do?
- Front-end development services
- Key features and components
- Common integrations
- Quality standards
- Our front-end development process
- How much does front-end development cost?
- Technology we typically use
- Mistakes to avoid
- Why choose Progression Agency for front-end development?
- Related services
The short answerFront-end development is building what users see and use in the browser: layouts, components, interactions, data display and forms, connected to APIs. A front-end development company supplies the engineering for that layer in frameworks such as React, Angular and Vue, with TypeScript, accessibility and performance discipline. Planning figures: a front end for a business web app $40,000-$150,000; a design system $25,000-$80,000; dedicated front-end engineers $8,000-$18,000 a month.
Cost ranges are US planning figures, not quotes.
What does a front-end development company do?
It engineers the browser side of web products: implementing designs as accessible, responsive components; managing application state and data fetching; integrating with REST and GraphQL APIs; optimizing performance; and maintaining the codebase in React, Angular, Vue or Svelte with TypeScript. It may also build the back end or work with the client’s existing services.
We build primarily in React and Next.js, with Angular and Vue for clients standardized on them; see React vs Vue vs Angular, web development frameworks and rendering strategies.
TypeScript is our default for any product meant to last; see the TypeScript documentation.
Front-end development services
Projects we are most often asked to build.
React and Next.js front-end development
Interfaces for SaaS, portals and marketing platforms; see React development company and Next.js development company.
Angular development
Enterprise applications with Angular’s conventions, signals, forms and dependency injection, including upgrades from AngularJS and older Angular versions.
Vue and Nuxt development
Progressive front ends and full-stack Nuxt sites for teams that prefer Vue.
Design systems and component libraries
Tokens, components, Storybook documentation and accessibility baked in, shared across products and teams.
Front-end performance optimization
Bundle analysis, code splitting, rendering strategy, image and font optimization, Core Web Vitals; see speed optimization.
Dedicated front-end engineers
React, Angular, Vue and TypeScript specialists embedded in your team; see hire dedicated developers.
React, Angular, Vue and TypeScript specialists embedded in your team; see hire dedicated developers.
Key features and components
What separates a useful build from a costly one.
| Feature | Why it matters |
|---|---|
| TypeScript | Safer refactors, fewer bugs |
| Component architecture | Reuse and consistency |
| State and data layer | Predictable, testable |
| Accessibility (WCAG 2.2) | Compliance and usability |
| Performance budgets | Fast on mobile |
| Automated tests | Unit, component, end-to-end |
| Storybook documentation | Shared understanding |
| CI with previews | Review before merge |
Common integrations
Where the value usually comes from.
| System | What we connect |
|---|---|
| APIs | REST, GraphQL (Apollo, urql), tRPC |
| Auth | Auth0, Clerk, Cognito, Entra ID |
| Design | Figma, tokens, Storybook |
| Analytics | GA4, Segment, Mixpanel |
| Back ends | Node.js, Django, .NET, Laravel |
| Hosting | Vercel, Cloudflare, AWS, Azure |
Quality standards
Front-end quality is measured, not assumed.
- Accessibility to WCAG 2.2 AA with automated and manual testing.
- Performance against Core Web Vitals with budgets enforced in CI.
- Security practices from the OWASP Top 10 for client-side concerns (XSS, CSRF, dependency risk).
- Framework patterns from the React, Angular and Vue documentation.
Our front-end development process
We assess the product and back end, choose the framework and architecture, build the design system, implement screens in sprints with tests and previews, integrate APIs and analytics, and optimize performance and accessibility before launch.
How much does front-end development cost?
As US planning figures: the front end of a business web app $40,000-$150,000; a design system $25,000-$80,000; a marketing site front end $15,000-$60,000; dedicated engineers $8,000-$13,000 (mid) to $12,000-$18,000 (senior) a month.
| Scope | Typical range | Timeline |
|---|---|---|
| Marketing site front end | $15,000-$60,000 | 4-10 weeks |
| Web app front end | $40,000-$150,000 | 2-5 months |
| Design system | $25,000-$80,000 | 6-12 weeks |
| Dedicated front-end engineer | $8,000-$18,000 per month | Monthly |
Technology we typically use
Mainstream, maintainable choices.
| Layer | Choice |
|---|---|
| Frameworks | React, Next.js, Angular, Vue, Svelte |
| Language | TypeScript |
| Styling | Tailwind CSS, CSS Modules, design tokens |
| Testing | Jest, Testing Library, Playwright, Cypress |
| Docs | Storybook |
| Build | Vite, Turbopack, GitHub Actions |
Mistakes to avoid
Common causes of overruns and low adoption.
- Choosing a framework nobody on the client’s team can maintain.
- Building screens before a component library exists.
- No accessibility until a complaint arrives.
- Shipping without performance budgets.
- Mixing two frameworks in one product.
- Front end and back end teams that never talk.
Why choose Progression Agency for front-end development?
Engineering, design and go-to-market in one team.
- React, Angular and Vue expertise with honest framework advice.
- Design and front-end engineering in one team, so interfaces ship as designed.
- Engineers who work in your repositories, tools and time zone.
- You own the code, data and accounts.
- Headquartered in New York City, working nationwide.
Related services
See web app development company, backend development services, UI/UX design services and choosing a tech stack.
Ready to scope it?
Tell us the users, workflow and systems involved. We will propose a first release and planning estimate.
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
- React vs Vue vs Angular
- Svelte vs React
- Astro vs Next.js
- Next.js vs React
- Web development frameworks
- What is a tech stack
- SSR vs CSR vs SSG
- React Native vs Flutter
- Vercel vs Netlify
- Cloudflare vs AWS
- AWS vs Azure vs Google Cloud
- Web hosting types compared
- Hosting for React and Next.js
- SaaS hosting
- WordPress hosting guide
- Backend hosting options
- Website hosting for small business
- Headless CMS vs traditional CMS
- WordPress alternatives
- Best CMS platforms
- Webflow vs WordPress
- Wix vs Webflow
- Framer vs Webflow
- Shopify vs WooCommerce
- Custom software vs off-the-shelf
- Website development cost
- Monolith vs microservices
- Custom website development services
- React development company
- Next.js development company
- WordPress development company
- Webflow development agency
- WordPress maintenance services
- Ecommerce website redesign services
- Website migration services
- DevOps services
- Cloud migration services
- Website speed optimization services
- Website security services
Social, content and brand
By industry and by situation
Frequently asked questions
What is a front-end development company?
Which front-end frameworks do you use?
Are you a JavaScript development company?
Are you a TypeScript development company?
Do you use TypeScript?
Do you do Angular development?
Do you build design systems?
How much does front-end development cost?
Can you work with our existing back end?
Can you supply front-end developers to our team?
Do you handle performance optimization?
Do you handle accessibility?
Which is better, React, Angular or Vue?
Do you also build back ends?
How long does a front-end project take?
Who owns the code?
Where is Progression Agency located?
Do you migrate legacy front ends?
How do I start?
Need software built?We design, build and support custom software, web apps and SaaS platforms, with a written scope first.
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.