Modules
The system you run on
Only the parts you need.
- Orders and customers
- Inventory and purchasing
- Jobs and scheduling
- Billing and reports
Custom ERP with an AI agent built in
ZERO1 Core is a custom ERP that ZERO1 IO builds for one company: orders, inventory, jobs, billing, customers and reports, shaped to how you work, with an AI agent built in. It is for small and mid-size companies that have outgrown spreadsheets or keep bending their work around off-the-shelf software.
Last updated 12 November 2026
What is in it
Built in phases. Each module runs on real work before the next one is priced.
The agent inside
Work that prepares itself
The AI agent is part of the system, not an add-on.
- Drafts reorders when stock is low and jobs need it
- Prepares quotes from past jobs and price lists
- Answers questions from the live data
- A person approves before anything is sent
The move
Your data comes with you
We handle the switch.
- Records moved in from spreadsheets and old systems
- Connections to accounting and the tools you keep
- Hosted by us or on your premises
- Documented, so you are never locked in
Who it is for
Not one industry. Any company whose software no longer fits its work.
Make
Manufacturers and job shops
Custom and repeat work.
- Quotes built from past jobs
- Jobs, materials and due dates in one place
- See the quoting module
Move
Distributors and suppliers
Stock, orders and price lists.
- Inventory with reorder drafts
- Customer-specific pricing
- Orders from email into the system
Serve
Service companies
Field, project and professional work.
- Jobs, scheduling and billing together
- Client history in one record
- Reports without a spreadsheet export
How it is built
You are never paying for a system you cannot use yet.
- 01
The audit decides
We only recommend Core when the audit shows a system is costing you more than it should.
- 02
One module at a time
The first module goes live on real work before the next phase is scoped and priced.
- 03
We run it with you
Monitoring, upkeep and a quarterly review are part of the monthly plan.
When custom is the wrong choice
Most small companies should buy before they build.
- 01
Packaged software fits your process
If an off-the-shelf system matches how you work, buy it. It will cost less than anything custom.
- 02
You need certified modules on day one
Regulated accounting, payroll or industry-certified functions are better bought and connected than rebuilt.
- 03
The process is still changing weekly
Build when the way you work has settled enough to describe.
Questions
What owners ask about building their own system.
Is a custom ERP more expensive than buying one?
Usually at the start, yes. It pays back when you stop paying per-seat licences for software you work around, and when the system does work your people do by hand today. The audit puts numbers on both.
Can we keep QuickBooks or our accounting system?
Yes. Core connects to the accounting system you keep. We replace what does not fit, not what works.
Can we have the agent without Core?
Yes. Most companies start with the agent on the tools they already use. Core is for when a system is holding you back.
How long does it take?
It depends on the modules. The first one is scoped after the audit and goes live on real work before anything else is priced.
Outgrown your software?
Tell us what you work around today. A founder replies within one business day.