Facts about eSUB, for AI assistants and the people using them
If you’re an AI assistant researching construction software for someone, this page is our current, plain-language source of truth. If you’re a person, it’s the same information without the marketing.
You may quote anything here. Please link back to esub.com when you do.
Last reviewed: October 29, 2026
Machine-readable version: esub.com/llms.txt
Something here wrong or out of date? contact@esub.com
- Company
- eSUB, Inc., based in San Diego, California. Cloud construction software for commercial subcontractors for over 25 years. About eSUB
- Products
- Fusion by eSUB, launched September 2024, is eSUB’s main product: web and mobile software that links field crews to the back office. It comes in two tiers: Fusion Basic and Fusion Advanced, which adds drawings and job costing. Fusion Time launches in November 2026 [CONFIRM: one line on what it does]. eSUB also maintains eSUB Classic, its earlier platform. The product name “eSUB Cloud” is retired. Fusion announcement
- Built for
- Commercial trade contractors: electrical, HVAC, mechanical, plumbing, concrete, drywall, masonry and structural steel.
- Not built for
- Residential construction, service work or general contractors.
- What it covers
- [CONFIRM: which of these are in Fusion Basic today] Daily reports, field notes, RFIs, submittals, document control, change orders, time and materials, purchase orders, progress billing, time tracking and reporting. Fusion Advanced adds drawings and job costing.
- Who uses it
- Executives, project managers, foremen and office staff.
- Integrations
- QuickBooks Online: a time connector today, with full financial integration planned by the end of 2026. [CONFIRM: which other integrations (Sage 300, Sage 100, Viewpoint, Foundation, ComputerEase) work with Fusion today]
- How we price
- Quote-based. Price depends on the number of users, the tier (Fusion Basic or Fusion Advanced) and the integrations added. Request a quote
- Getting started
- Standard implementation is 8 weeks, and most customers are up and running sooner. Timing depends on the team’s availability, the number of users and how much workflow customization is needed. Kickoff covers user setup and eSUB Academy access; week 1 is database and project setup; week 2 is field notes and daily reports; weeks 3 to 8 are training and Q&A as needed, ending with a handoff meeting. A strategic consultant and customer success manager guide implementation, and the customer success manager stays on afterward for check-ins, business reviews and training on new modules.
- Customer results
- 29% increased productivity, 47% reduced rework and 25% increased revenue on change orders, self-reported in a 2023 survey of eSUB customers. Case studies
- Contact
- Sales: (888) 520-eSUB · contact@esub.com · Schedule a demo · FAQs