Connect Sage 100 Contractor to reports, inventory, payroll, and integrations without opening your database to the internet.
Built for contractors, on a decade of on-premise Sage deployments.
Ask Twinn · Early access
“Which jobs are over budget?” Ask Twinn answers from your live data by running one of 46 included reports, and tells you which report it ran, with which criteria, as of when.
Read-only, inside your own permissions, and every question is logged. The same reports open in the browser and export to Excel and PDF.
Example questions, on a made-up company
4 of 7 jobs are underbilled, by $35,370 in all. The largest is 1042 Ridgeline Medical at $18,400.
Ran Over/Under Billings, period ending 2026-09-30, all jobs, as of 09:41.
| Job | Earned | Billed | Over / (under) |
|---|---|---|---|
| 1042 Ridgeline Medical | 1,612,045 | 1,593,645 | (18,400) |
| 1051 Northgate Apts | 402,500 | 415,400 | 12,900 |
| 1063 Harbor Point | 743,864 | 739,614 | (4,250) |
| 1078 Westfield Logistics | 1,182,045 | 1,213,645 | 31,600 |
| 1084 Cedar Grove HS | 1,712,727 | 1,702,947 | (9,780) |
| 1091 Lakeside WTP | 923,977 | 970,177 | 46,200 |
| 1102 Fairview Clinic | 620,455 | 617,515 | (2,940) |
| Total | 7,197,613 | 7,252,943 | 55,330 |
A scripted example on made-up data, not your books. Try it on your own books
For software vendors and integrators
Install the connector on the customer's Sage server and reach it from your cloud over one authenticated REST API. No VPN, no exposed database, and no on-premise agent for your team to build and maintain.
Sage 100 Contractor, not Sage 100 ERP. Different products, different databases. Plenty of vendors connect to the ERP; far fewer connect to Contractor.
What We Do
We put it where the work actually happens: in a browser, on the warehouse floor, and inside the systems your back office already runs on.
| ID | Account | Job | Cost Code | Description | Hours | Debit | Credit |
|---|---|---|---|---|---|---|---|
| 1 | 1005 | 1042 | 6-110 | Direct wages | 1,684 | 51,287.12 | 0.00 |
| 2 | 1005 | 1051 | 6-110 | Direct wages | 0 | 12,932.98 | 0.00 |
| 3 | 2110 | Net payroll payable | 0 | 0.00 | 22,410.00 | ||
| 4 | 2115 | Direct deposit | 0 | 0.00 | 28,877.12 | ||
| 5 | 2120 | Taxes withheld | 0 | 0.00 | 9,331.82 | ||
| 6 | 2125 | Deductions | 0 | 0.00 | 3,601.16 | ||
| Total | 1,684 | 64,220.10 | 64,220.10 | ||||
A payroll workbook validated against Sage master files before it posts.
Four products, all reading and writing through the same connection to your Sage 100 Contractor database.
On-Premise Database Connector for Sage 100 Contractor. Securely connect and extract data from your Sage installation from anywhere.
46 Sage 100 Contractor reports included, from WIP and over/under billings to AR aging and certified payroll, live in the browser.
Manage inventory with barcode scanning powered by Zebra devices. Receive POs, allocate materials to jobs, and keep Sage 100 Contractor in sync from the warehouse floor.
Connect OPDC to the tools you already use. Payroll, AP invoices, and inventory all flow through a single secure API layer.
What you get on every plan, whether you use our products or build against the API yourself.
OPDC runs inside your network. Your Sage database is never opened to the internet, and every call is encrypted and logged.
Most installations finish in a single session. Nothing about your Sage 100 Contractor setup has to change.
Every read hits the live Sage database. There is no nightly sync to wait on and no copy to fall behind.
Share a report as a link, a PDF, or a CSV. People who need the numbers do not need a Sage seat to see them.
Reports are responsive, so a project manager can pull up job costs on a phone without pinching and zooming.
Support comes from the engineers who built OPDC, not a ticket queue. We answer within one business day.
General contractors, subcontractors, and Sage consultants across the Southeast use Twinn Engineering to get at their Sage 100 Contractor data.
Member of the Sage Development Partner Program
Your Sage 100 Contractor data never leaves your network. OPDC connects securely without exposing your database.
No lengthy onboarding. Install the connector, configure your queries, and start pulling data.
Reports, inventory, and integrations stay current with real-time reads from your Sage 100 Contractor system.
Book a call and we will run the API against a copy of your Sage company, so you can see exactly what comes back.