Custom web app development for USA businesses — customer portals, SaaS platforms, internal dashboards, and booking systems built to fit how you actually work.
Your team should not run a growing business on spreadsheets, sticky notes, and five tools that do not talk to each other. Vectrix builds custom web applications that fit the way you actually work.
We are a web application development company with a US office in Tampa, Florida, and a senior engineering team behind it. We build customer portals, SaaS platforms, internal dashboards, and booking systems for startups and established companies across the United States.
Capabilities
Every business runs a little differently. Off the shelf software forces you to change your process to match the tool. Our custom web application development services flip that around — the software matches you. We map your workflows first, then build.
Launching a product? We build multi-tenant SaaS platforms with subscription billing (Stripe), user roles, admin panels, and usage reporting. Start with an MVP, get real users, then scale.
Give your customers a place to log in, check status, download invoices, and submit requests, instead of emailing your team all day. Secure logins, role based access control, and clean reporting.
Replace the spreadsheet. We build internal tools for operations, inventory, scheduling, approvals, and reporting, so your staff stops copying data between systems by hand.
Larger teams need more: single sign on, audit logs, permission levels, and systems that hold up under real traffic. We design enterprise web applications with clean architecture so they do not break when you grow.
Stuck with an old app that is slow, insecure, or impossible to update? We rebuild it on a modern stack without losing your data or your users.
Your web app should talk to the tools you already pay for. We connect Salesforce, HubSpot, Stripe, QuickBooks, Twilio, Shopify, and just about any REST or GraphQL API.
Custom stores with inventory sync, optimized checkout, and payment processing through Stripe.
Calendars, payments, automated notifications, and a full admin panel.
Not on the list? Most of what we build is custom anyway.
We pick tools that are fast now and still supported in five years.
Have a stack in mind already? We adapt.
Our Process
We learn your workflow, users, and goals. You get a clear scope, timeline, and fixed price range before any code is written.
Wireframes and clickable prototypes in Figma. You see it and approve it before we build it.
Two week sprints. You get a working demo at the end of each one, no six month silence.
Our QA team runs automated and manual testing. Security checks, performance checks, browser checks.
We deploy, monitor, and stay on hand for the first weeks live.
Updates, fixes, and new features as your business changes.
A US partner, a global team. Our co founder is based in the United States and handles your account directly. You get American business hours, clear English, and no time zone runaround.
Engagement
You know what you need. We scope it, quote it, build it, and deliver it. Best for MVPs and clearly defined builds.
You need senior developers working only on your product, month to month. Best for ongoing SaaS development and long roadmaps.
You already have a team and need to add React, Node.js, or DevOps capacity fast. Our engineers plug into your sprints, your repo, and your standups.
A web app that loads slowly loses users. We build to strong Core Web Vitals scores, so pages load fast on any device.
We follow secure development practices: encrypted data in transit and at rest, protection against common attacks, and permission systems that keep the right eyes on the right data. If your industry has rules — HIPAA, SOC 2, or GDPR — we build around them from the start, not as a patch later.
We also build to WCAG 2.2 accessibility standards, so your app works for every user and keeps you on the right side of ADA requirements.
Next Steps
Add AI agents that handle support, research, and routine tasks inside your app.
Connect your web app to the rest of your tool stack.
Remove manual steps end to end.
CI/CD, cloud infrastructure, and Kubernetes for scale.
FAQ
Most Vectrix projects land between $15,000 and $150,000, depending on scope. We give you a firm range after a free discovery call, not a guess before it.
A simple internal tool takes 6 to 10 weeks. A standard multi role app takes 10 to 16 weeks. A complex SaaS platform takes 4 to 6 months. Rush timelines are possible but add cost.
A website shows information. A web application does work — users log in, enter data, run tasks, and get results back. A brochure site is a website. A booking system or customer dashboard is a web app.
You do. Full source code, repository access, and documentation are handed over. No lock in, no license fees.
Yes. We sign an NDA before any project details are shared.
Yes. We do a code audit first, tell you honestly what is salvageable and what is not, then give you a fixed plan to finish or rebuild it.
Yes. We offer monthly support plans covering security patches, bug fixes, hosting monitoring, and new features. Most clients budget 15–20% of the build cost per year for this.
They usually do. We work in two week sprints, so changes get priced and slotted into the next sprint instead of blowing up the timeline.
Yes. Everything we build is responsive by default. We can also ship it as a progressive web app (PWA), so users install it on their phone like a native app.
Both. Startups usually begin with an MVP to validate demand. Established companies usually start by replacing one broken internal process.
We will tell you what it takes, what it costs, and how long it will run — free, no pressure.