Withrebar
Founded 2024 · 53 employees on LinkedIn · 3 known investors
Rebar builds AI software for HVAC, plumbing, and electrical contractors to automate workflows from takeoff through bid management. The platform serves trade professionals who have historically relied on manual, paper-based processes.
Also known as Rebar
Founders & leadership
Withrebar was founded in 2024 by Evan Brown and Andrew Schwartz.
Investors · 3
Company profile
researched Aug 2026Rebar (withrebar.ai) develops estimating software specialized for HVAC contractors, positioning itself as a tool for inside estimating staff performing takeoffs. The product applies AI to tasks including equipment marking with associated properties, automatic room search, and summarizing changes introduced by addenda to bid documents.
Beyond takeoff execution, the platform includes configuration and analytics layers. Firms can customize how takeoffs are presented, including markup symbols and colors, equipment preferences, and property settings. Analytics features cover basis-of-design tracking to identify what engineers in a given market are specifying, monitoring of estimating performance such as bid volume and time spent estimating, and identification of the equipment lines contained in local jobs.
Traction
The company states it has completed a SOC 2 Type I independent controls review covering security and availability, and that data is isolated per organization with support for projects under NDA.
▸Full profile — market position, technology, go-to-market
Market position
Rebar describes itself as hyper-specialized for HVAC estimating and as built by industry experts, with configurable takeoff presentation and market-level analytics rather than generic takeoff tooling.
Technology
The software applies AI to estimating workflows, including automated equipment marking with property capture, automatic room search within drawings, and automated summaries of addendum changes. Customization settings govern markup symbols and colors, equipment preferences, and property definitions, while an analytics layer aggregates data on specified equipment and estimating throughput.
Go-to-market
The company markets the product through its website, where prospective customers are directed to book a demo, and offers customizations tailored to individual firms.
HVAC contractors and their inside estimating staff, including firms handling projects under non-disclosure agreements.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 2
by search overlap
Companies competing with Withrebar for the same Google search keywords, organic and paid, via search-intersection analysis.
▸Research sources · 1
primary sources listed
- Withrebarwithrebar.ai · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Withrebar do?
- Rebar is AI-assisted estimating software that helps HVAC contractors complete takeoffs and track bid performance.
- Who founded Withrebar?
- Withrebar was founded by Evan Brown, Andrew Schwartz in 2024.
- Who are Withrebar's investors?
- Withrebar's investors include Founder Collective, Prudence, Zero Infinity Partners.