From unscheduled lead to paid invoice in days — not weeks.
Hybrid Asset Solutions runs electrical and plumbing field work. Its back office ran on phones, spreadsheets and hand-raised invoices. Terrafusion built one operational record and put a harness on it: deterministic workflows for quote, schedule and invoice, forecasting on the same record, and an eval loop judging every action. First production in eight weeks; lead to paid invoice in days.
The approach
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The record and the field-service CRM, Big Change, are Hybrid’s. The harness — deterministic workflows, a registry of deterministic and LLM agents, forecasting, and an eval loop with LLM-as-a-judge — is Terrafusion’s method, on clusters we deploy and operate in Hybrid’s cloud.
Key outcomes
Lead to paid invoice in days
A cycle that used to take weeks now closes in days, on one record.
Thirty people onto revenue work
The team that did the processing now pursues leads, quotes and delivery management, with no added headcount.
Larger contracts supported
High-priority opportunities and quotes are orchestrated automatically, so the business takes contracts above its old ceiling, for customers including Grainger and Greystar.
The challenge
Every job moved through the back office by hand: invoices raised and reconciled manually, engineers scheduled by phone and spreadsheet, job reports unread unless someone had time, quotes assembled late enough to cost work. The same job lived in half a dozen places, and nowhere at once.
Thirty people were absorbed by that processing, and lead to invoice stretched to weeks. There was no shared definition of a job, a site, an engineer or a status, so every system and every team described the work differently. Growth meant hiring administrators.
How the harness works: the Software Factory
Grainger and Greystar are Hybrid Asset Solutions’ customers, not Terrafusion’s.