2by4.ai delivers AI-generated, human-verified construction material takeoffs to contractors and estimators as a service.

2by4 was founded by Hariprasath Parthasarathy, Abhishek Rawat in 2024.

Who are 2by4's investors?

2by4's investors include Entrepreneur First.

Where is 2by4 headquartered?

2by4 is headquartered in Bangalore, IN.

2by4

Entrepreneur First '24

Bangalore, IN · Founded 2024 · 1 known investors

2by4.ai ↗

2by4 applies AI to construction drawings to produce material takeoffs, extracting quantities for trades such as piping, concrete, electrical, and site work. The resulting data is formatted for use in cost estimation and bid preparation. It is aimed at contractors and estimators handling pre-construction work.

Also known as 2by4.ai

Construction Tech

Founders & leadership

2by4 was founded in 2024 by Hariprasath Parthasarathy and Abhishek Rawat.

Hariprasath Parthasarathy inCEOHariprasath Parthasarathy is a systems engineer whose career includes building computer vision models for warehouse operations at Amazon and helping architect distributed database systems at Oracle that handled trillions of dollars in daily transaction volume. He built tracking hardware himself as a teenager and received a Best Research Award during his Master's for contributions to a DARPA-funded drone swarm project.

Abhishek Rawat inCTOAbhishek Rawat joined API security company Levo as a founding engineer, where he developed infrastructure adopted by financial firms including Visa and Square to protect their APIs. Earlier, he contributed through Google Summer of Code to BRL-CAD, a long-running open-source CAD system that originated at the US Army's Ballistic Research Laboratory.

Investors · 1

Entrepreneur FirstBengaluru · $1M – $7M

Company profile

researched Aug 2026

2by4 (2by4.ai) provides AI-generated construction material takeoffs delivered as a service. Contractors and estimators submit blueprints in PDF or TIFF format through a secure portal; AI agents extract material quantities from the plans, and expert estimators review every AI-generated quantity before delivery. Output is a detailed material takeoff accompanied by a visual audit trail that indicates where each quantity was derived from on the source plans.

The company states coverage of all major construction trades, listing electrical, plumbing, HVAC/mechanical, concrete and formwork, water and sewer, site preparation, drywall and framing, roofing, flooring, landscaping, demolition and custom scopes. Its exhibitor profile at the NAHB International Builders' Show describes a broader scope: an AI-powered takeoff agency performing end-to-end estimating that also sources vendor pricing and delivers finalized bids, with product categories spanning bidding/estimating software, construction management, cost management, estimating systems, scheduling and land planning.

Business model

2by4 operates as a done-for-you service rather than software the customer must learn: clients upload construction plans (PDF or TIFF) through a secure portal, AI agents extract material quantities, expert estimators verify each number, and a completed takeoff is delivered back with a visual audit trail. The Builders' Show listing describes the company as an AI-powered takeoff agency handling end-to-end estimating, including performing takeoffs, sourcing vendor pricing and delivering finalized bids.

Sources do not state pricing or how the service is charged.

▸Full profile — market position, technology, go-to-market

Market position

2by4 presents itself as an alternative to established takeoff software tools such as PlanSwift and Bluebeam, competing on a serviced rather than self-serve model. Available sources do not indicate market share, customer counts or revenue.

The company positions its combination of AI speed with 100% human verification of every quantity, plus a visual audit trail tying each number back to a location on the plans, as its principal differentiators. It explicitly contrasts itself with takeoff software such as PlanSwift and Bluebeam, framing 2by4 as a service with no software for the customer to learn.

Technology

AI agents extract material quantities from uploaded construction drawings (PDF or TIFF), with outputs reviewed by human estimators. Deliverables include a visual audit trail linking each extracted quantity to its location on the plans.

Go-to-market

Direct outreach and inbound contact via the company website, which lists a founder email address and a US phone number, together with trade-show presence: 2by4 is listed as an exhibitor and NAHB member in the NAHB International Builders' Show directory.

Contractors and estimators preparing bids across construction trades, including electrical, plumbing, HVAC, concrete, drywall, roofing and site work.

Compiled by commissioned research from 6 cited public sources — announcements, filings, and press listed under research sources below.

Timeline · 1

launches, deals, and filings

Jan 2026

Listed as exhibitor at NAHB International Builders' Show

2by4 appears in the NAHB International Builders' Show online exhibitor directory, listed as an NAHB member under categories including bidding/estimating software, construction management, cost management and estimating systems.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

▸Research sources · 6

primary sources listed

2by42by4.ai · web

6 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does 2by4 do?: 2by4.ai delivers AI-generated, human-verified construction material takeoffs to contractors and estimators as a service.
Who founded 2by4?: 2by4 was founded by Hariprasath Parthasarathy, Abhishek Rawat in 2024.
Who are 2by4's investors?: 2by4's investors include Entrepreneur First.
Where is 2by4 headquartered?: 2by4 is headquartered in Bangalore, IN.