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Custom SaaS foundations
& AI engine integrations

We build custom SaaS platforms on proven, pre-architected foundations with AI built in, so you launch a secure multi-tenant product months sooner than starting from scratch.

Request a custom integration ↗See what it does

BEST FOR

Founders and product teams

INCLUDES

Tenants, roles, billing, API

AI READY

RAG and LLM agent workflows

YOU OWN

The code, data and hosting accounts

THE PROBLEM WE SOLVE

Why teams
choose this solution

Most SaaS products spend their first months rebuilding the same plumbing: sign-up, teams, permissions, billing and an admin area.

Our foundations already solve those parts, so your budget goes into the features that make your product different, including AI that works with your customers’ own data.

BUILT FOR

  • Start-up founders
  • Software product teams
  • Businesses productising a service
  • Agencies building for clients

PLATFORMS & TOOLS

  • Next.js
  • Node.js
  • AWS
  • OpenAI / custom LLMs
  • PostgreSQL
  • Stripe

KEY FEATURES

What the solution
does for you

01

Multi-tenant data separation

Each customer’s data is isolated, with role-based access control for every user.

02

Custom RAG on business data

Retrieval-augmented generation lets AI answer from each tenant’s own documents.

03

LLM agent orchestration

Agents can run multi-step tasks inside your product, with limits and logging.

04

Billing and subscription tiers

Plans, trials and usage limits are wired to automated billing.

05

Developer API access

A documented API and keys let customers connect your product to their tools.

06

Admin and analytics

An admin area for support, usage reporting and tenant management.

HOW IT WORKS

Step by step,
end to end

STEP 01

Start from the foundation

Auth, tenants, roles and billing are in place from week one.

STEP 02

Build your features

Sprints focus on the workflows that make your product unique.

STEP 03

Add AI where it helps

RAG and agents are connected to each tenant’s data safely.

STEP 04

Launch and scale

Deployed on AWS with monitoring, backups and room to grow.

PROOF

Related work
for our clients

See all case studies →

HOW WE WORK

One clear process
for every integration

01

Discovery & mapping

We map your current systems, data and bottlenecks, then agree scope and success measures.

02

Architecture & build

We design the data flow and build type-safe middleware and custom API endpoints.

03

Sandbox testing

Every sync is tested against real edge cases and simulated peak traffic before go-live.

04

Launch & monitoring

Zero-downtime release, with logging and error alerts so issues are caught early.

FAQ

Questions we
hear most

Do we own the code if you use a blueprint?

Yes. The foundation becomes part of your codebase, and you own all of it, including the parts we started from.

Which AI models can we use?

OpenAI, Anthropic and open-source models are all supported. We choose based on cost, accuracy and where your data must stay.

Can you take over an existing SaaS product?

Yes. We review the codebase first, then either extend it or move parts onto the foundation step by step.

How much does it cost?

It depends on the systems and data involved. After a short discovery you get a fixed-price estimate for the build and a clear monthly figure for hosting and support.

What happens after launch?

We monitor the integration, fix issues fast and update it when the connected systems change versions. You own the code, data and accounts from day one.

RELATED SOLUTIONS

Often built
alongside this

See all 12 solutions →

WORK WITH US

Tell us what
you need connected

Share the systems you use today and what you want them to do. We reply with clear next steps and a written estimate before any work starts.

Request a custom integration ↗Contact us

  • 01Tell us about your systems and goals
  • 02Get a written estimate before any work
  • 03Your code, data and accounts stay yours

Work

B&B

November 4, 2025

Last updated: