B2B SaaS Development — US Enterprise

The Engineering Partner for B2B SaaS Companies That Need to Move Fast

From MVP to enterprise-grade B2B SaaS — 47Billion delivers full-stack product engineering for US companies at every stage.

MVP to Series B
API-First Architecture
US Time Zone Delivery
01

You have product-market fit and need to scale engineering without bloating headcount.

02

You are rebuilding a legacy SaaS platform and cannot afford a 12-month rebuild timeline.

03

You need to add AI capabilities to your existing SaaS product but your team lacks the ML depth.

What We Build

We act as an extended product
engineering team for B2B SaaS companies

Multi-tenant SaaS Architecture
API-First Backend Development
AI/ML Feature Integration
SaaS Platform Migrations & Rebuilds
Mobile & Web Product Development
Analytics, Reporting & Data Pipelines

Tech Stack

ReactReact
Node.jsNode.js
PythonPython
AWSAWS
AzureAzure
PostgreSQLPostgreSQL
OpenAIOpenAI
Engagement Model

From Brief to Build:
Our 4-Phase Engagement

01
Week 1–2 Discovery

We audit your current tech stack, roadmap, and constraints. You get a written recommendation — whether we work together or not.

02
Week 2–3 Sprint 0

Architecture decisions, team composition, tooling setup. No surprises later in the project.

03
Week 4–Ongoing Build

Bi-weekly sprints. US-hours standup. You see progress every 2 weeks, not after 6 months.

04
Ongoing Scale or Handoff

We scale the team with you — or hand off with full documentation, clean code, and a knowledge transfer session.

Case Study
SaaS Built. Shipped. Scaled.
10,000
Concurrent sessions handled at launch
14 weeks
From signed contract to production deployment
99.97%
Uptime in first 6 months post-launch

From Zero to Production: US Logistics SaaS Rebuilt in 14 Weeks

Challenge

A US logistics SaaS company needed to rebuild their core dispatching module — their legacy system was capping them at 200 concurrent users.

What We Built

A multi-tenant, event-driven replacement built on Node.js, PostgreSQL, and AWS — with real-time WebSocket updates and full audit logging.

Stack

React · Node.js · PostgreSQL · AWS ECS · Redis · Terraform · CI/CD via GitHub Actions

Outcome

New system handles 10,000 concurrent sessions at 99.97% uptime. The migration was completed with zero downtime for existing customers.

Why SaaS Companies Trust 47Billion With Their Product

Code You Own — Full IP Transfer

Full IP transfer is standard in every engagement. No lock-in, no exceptions. Your codebase is yours from day one, with no strings attached.

Transparent Sprints, Full Access

You have direct access to the repo, the backlog, and the team at all times. We don't gate information behind account managers.

US-Aligned Communication

Project managers available in your time zone, every business day. No 24-hour delays on blockers. Standups when your team is awake.

Security-Conscious by Default

SOC 2-ready architectures, encryption at rest and in transit, data isolation in multi-tenant systems. Security is architecture, not an afterthought.

quote mark

The 47Billion team understood our architecture constraints from day one. They didn't need to be hand-held through the domain — they asked the right questions in Sprint 0 and delivered exactly what we scoped. The codebase they handed off is genuinely clean.

VP of Engineering, US B2B SaaS Company

Series B · Enterprise Software

Discovery Call

Ready to Talk About Your Product?

We will review your current tech stack or spec before the call.

You will leave with at least one concrete recommendation.

No sales deck. No follow-up spam.

Book a 30-Minute Discovery Call — No Pitch, Just Clarity

Let's Connect

Common Questions

Frequently Asked Questions

Both. We have taken products from zero to first paying customer, and helped Series B companies rebuild core platform components while keeping the business running.

You do, always. Full IP transfer is standard in every engagement — no lock-in, no exceptions.

We architect for SOC 2 readiness from day one — role-based access, audit logging, encryption at rest and in transit, data isolation in multi-tenant systems.

We build for handoff from day one — full documentation, clean code standards, and a knowledge transfer session at project close.