FraterUnion — AI Software Studio
We build operating systems for ambitious businesses.
FraterUnion designs, builds, and operates premium software — AI systems, enterprise platforms, and the products that run entire industries. We don't sell code. We build businesses through software.
Five operating systems. One studio.
The FraterUnion ecosystem
Products we've built and operate.
Each one is a full operating system for its industry — designed, shipped, and run by FraterUnion.
Operating System for Gyms
The command center for modern gyms.
Class scheduling, member check-ins, billing, and retention — unified into one system built for how gyms actually run.
- Check-in time
- <2s
- Retention lift
- +18%
- Classes managed
- 40k+/mo
Operating System for Restaurants
Every table, every ticket, one system.
From the floor to the kitchen to close-out, RestaurantOS keeps front and back of house in sync in real time.
- Avg ticket time
- 11 min
- Table turnover
- +22%
- Orders synced
- Real-time
Operating System for Shopping Centers
Shopping centers, fully operational.
Leasing, occupancy, and tenant performance in a single operating view — built for teams running physical retail at scale.
- Occupancy visibility
- 100%
- Leasing cycle
- -30%
- Tenants tracked
- Unlimited
Luxury Watch ERP
Enterprise-grade ERP for luxury watches.
Inventory, provenance, and sell-through tracked down to the serial number — built for dealers who can't afford to get it wrong.
- Inventory accuracy
- 99.9%
- Provenance records
- Full chain
- Sell-through visibility
- Live
AI Marketing Marketplace
The marketplace where campaigns get built.
AI-matched marketing talent and automated campaign operations, from brief to launch to performance report.
- Time to launch
- -60%
- Campaigns matched
- AI-scored
- Channels covered
- All major
What we build
Software that runs the business, not just the website.
Enterprise Software
Custom platforms built for how your business actually operates, not how off-the-shelf software assumes it does.
AI Systems
AI that ships inside your product and does real operational work — not a chatbot bolted on top.
Automation
We remove the manual steps between your team and the outcome, end to end.
Custom Platforms
SaaS products and internal operating systems, built from scratch and owned end to end.
Mobile Apps
Native-feeling apps for the people who run your business from the field, the floor, or the front desk.
Dashboards
Clear, real-time visibility into the numbers that actually drive decisions — nothing else.
Industries
Industries we operate in.
Fitness
GymOS and beyond — built from years inside the studio floor.
Restaurants
Front and back of house, unified under one operating system.
Luxury
Provenance, inventory, and service worthy of the product.
Real Estate
Leasing and occupancy platforms for teams running physical space.
Healthcare
Operational software for teams that can't tolerate downtime.
Fintech
Secure, auditable platforms for money in motion.
Manufacturing
Systems that connect the floor to the boardroom.
How we work
How we work.
01
Strategy
We start with your business model, not your backlog.
02
Design
Every screen earns its place. Nothing generic ships.
03
Development
Production-grade software, built by a senior team, from day one.
04
Deployment
Shipped, monitored, and stable — not thrown over the wall.
05
Growth
We stay in the system, iterating on what the data tells us.
5
Operating systems shipped and still running
8 wks
Typical time to first production release
100%
Of products we ship, we also operate
Technology
Built on a modern stack.
The same tools trusted by the best product teams.
- Next.js
- NestJS
- Postgres
- Prisma
- Railway
- Vercel
- Docker
- OpenAI
- Anthropic
- Stripe
- AWS
Why FraterUnion
Why teams choose FraterUnion.
- 01
We build the whole business system, not a feature.
- 02
You get a product team, not a ticket queue.
- 03
We operate what we build — uptime is our problem, not yours.
- 04
Every product we ship, we'd put our own name on.
Let's build your operating system.
Tell us what you're running today. We'll show you what it looks like tomorrow.