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Custom Software

Client Portals

NorthFlow Studio builds secure, beautifully branded client portals that give your customers a single place to log in, view project status, share files, approve work and message your team. Portals reduce back-and-forth, increase transparency and make clients feel looked after — driving retention and referrals.

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Who this is for

NorthFlow Studio builds client portals for teams that want leverage without adding headcount or technical debt.

Agencies and consultancies serving clients
Service businesses wanting a premium experience
Professional firms sharing sensitive documents
SaaS companies adding a client-facing layer

Common business problems we solve

Scattered communication

Email, Slack and Drive create chaos for clients.

Low transparency

Clients don't know status and keep asking.

Weak retention

Without a home base, clients feel disconnected.

Manual file sharing

Attachments fly around insecurely.

Our approach

A structured, founder-led process from first call to launch and beyond.

01

Map the journey

We define what clients need to see and do.

02

Design the portal

We craft a branded, intuitive interface.

03

Secure backend

Auth, roles and file security are implemented.

04

Connect & launch

We link it to your delivery and billing tools.

Technology stack

We use a modern stack so your client portals is fast, secure and built to scale.

TanStack Start
React
TypeScript
Supabase
PostgreSQL
Node.js

Expected results

Improved retention
retention
Self-serve
status & files
Branded
experience

Frequently asked questions

What goes in a client portal?

Project status, deliverables, invoices, messages, approvals and a knowledge base — whatever your clients need most.

Is it secure?

Yes. We use authentication, role-based access and encrypted storage, with NDAs available.

Can clients approve and pay in the portal?

Yes. We can integrate approvals and Stripe payments.

Does it match our brand?

Completely. The portal uses your colors, logo and tone for a seamless experience.

Does it reduce support questions?

Yes. Self-serve status and files cut 'where is my stuff?' messages dramatically.

Why NorthFlow Studio

Founder-led engineering with clear ownership and support.

TypeScript-first stack (TanStack Start, React, Node.js, Postgres)CI runs type-check, lint, unit tests, Playwright E2E on every PRPerformance budgets in CI (LCP < 2.5s, INP < 200ms)PostgreSQL RLS on every multi-tenant tableSecrets via Vercel env vars — never in repoPreview deploys for every PR — see it before it shipsImmutable deploys with instant rollbackDependabot with 30-day SLA for critical patchesCode ownership — you own everything, no restrictionsFounder-led executionInitial response within 1 business day2-3 engagements per quarter to protect qualityRemote-first across 3 time zones

Ready to build your client portals?

Book a free strategy call. We'll map your bottlenecks to the right systems and send a clear roadmap — even if we don't work together.

Chat on Telegram

Usually replies within minutes. Chat on Telegram: @northflowstudio

No obligation consultationFounder-led projectsInternational clientsFast responseSecure communication