€0/ month
€276 billed once a year Start free - Up to 5 active jobs
- Schedule and tasks
- Invoices and quotes
- Phone app
For builders who run real jobs
Run every job, crew and invoice from one calm screen.
Octagon OS is the office for construction companies: what each job costs, who is on which site, who owes you money — always up to date, and it all adds up.
ACRMMLHM +1Used by 1,200 crews across Portugal
Features
Everything a building company runs on, in one place.
Your finances ,
finally under control
Join 1,200 crews already running their company on Octagon OS.
Overview · Octagon OS
JanFebMarAprMayJunJulAugSepOctNovDec
Total income
€ +9.4%
vs 2025Total expense
€ +5.4%
vs 2025Net period
€ +16.8%
vs 2025Free for 14 days · No card needed · Leave any time
0crews on Octagon OS
0M€ invoiced through it
0%invoices sent the same day
0average rating
Builders who run on Octagon OS
Costa Builders, Atlântico Studio, Quinta Velha, Vale Villas, Marina Clinic, Circo House, Lagos Obras, Sul Construções
Customers
Builders who stopped chasing paper.
“We stopped chasing paper. Every job, crew-day and invoice is just there, and the numbers match the bank.”
“I book my crew from the van in the morning. Nobody calls me asking where to go any more.”
“Overdue invoices used to hide for months. Now they’re red on day one and we chase them that week.”
Pricing
One price per company. Everyone on the team included.
€0/ month
€756 billed once a year Start free - Unlimited jobs
- Pipeline board
- Money overview and forecasts
- Bank connection
- Accountant access
€0/ month
€1908 billed once a year Talk to us - Everything in Company
- Several companies, one sign-in
- Roles and approvals
- Priority help
FAQ
Questions, answered
Most companies are running their first week on Octagon OS in an afternoon: add your jobs and crew, connect the bank, and the money pages fill themselves.