1build
1build (DBA Handoff) provides an AI-powered construction estimating and project management platform for residential contractors, alongside an API delivering live pricing on 68 million materials across 3,000+ US counties.
- Company typePrivate
- Founded2019
- HeadquartersBrandon, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What 1build does
1build is a US-based construction technology company that operates a dual-product business. Its legacy 1build product is a programmatic data platform providing live pricing on 68 million construction materials, labor, equipment, and assemblies across 3,000+ US counties, delivered via a REST API, a one-line embeddable widget, and a developer portal. The company's consumer-facing product is Handoff, an AI-powered estimating and project management platform for residential contractors that the company has operated under as a DBA since 2025, layering AI estimating, AI proposals, AI takeoffs, AI site walkthroughs, AI renderings, AI client portals, AI job costing, invoicing, and client financing on top of the cost-data backbone.
The technology stack combines proprietary cost-data infrastructure with generative AI, computer vision, and multimodal AI applied to voice notes, photos, and residential plan drawings. Voice-to-text leverages third-party providers Google Speech to Text and OpenAI Whisper, while AI takeoffs process residential plans up to 5,000 sqft into material and labor quantities in under two hours. Native integrations with Home Depot and Lowe's provide live retail pricing, QuickBooks Online provides bi-directional accounting sync, and Acorn Finance powers client-financing revenue share.
Revenue is generated through SaaS subscriptions across four tiers (Flex $119/month, Pro $239/month, Scale $719/month billed annually; Enterprise custom-priced with API access and SLA), professional services via on-demand construction estimating at estimating.1build.com, and transaction fees from the Acorn Finance partnership. Go-to-market is hybrid: product-led self-serve with 7-day free trials targeting SMB contractors (general contractors, remodelers, trade contractors, home builders), with sales-assisted onboarding and dedicated Success Coaches for Pro, Scale, and Enterprise tiers, plus an API-first developer motion for software platforms. The company is venture-backed, most recently closing a $5.8M seed round announced July 2025, and serves customers exclusively in the United States.
1build firmographics
Firmographics- Name
- 1build
- Legal name
- 1build, Inc.
- Website
- https://1build.com
- Company type
- Private
- Founded year
- 2019
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- 1build (DBA Handoff) provides an AI-powered construction estimating and project management platform for residential contractors, alongside an API delivering live pricing on 68 million materials across 3,000+ US counties.
- Ownership category
- akta.pro rank
1build industry classification
Industry- Product category
- Construction Estimating Software
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)
- SIC
- Services-Computer Programming Services (7371)
- akta.pro primary industry
- Construction & Engineering ERP (Job Costing, Project Controls) (HDAEAEAE)
Keywords
Where 1build is headquartered
LocationHeadquarters
- HQ city
- Brandon
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
1build business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Subscription Plans (SaaS): Three main subscription tiers (Flex, Pro, Scale) plus Enterprise. Flex offers 7-day free trial, Pro and Scale require 12-month commitment. Pricing ranges from $119-$899/month billed annually. Includes AI usage credits, user seats, and feature access based on tier.
- On-Demand Estimating Services: Expert construction estimators available on-demand. Users upload plans and specify project scope; service completes estimates. Uses a network of skilled estimators with decades of experience at top residential and commercial firms.
- Client Financing: Contractors can offer client financing through Acorn Finance integration, enabling clients to pay over time. Handoff earns revenue through this financing partnership.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Entry-level AI estimating with core features and limited AI credits |
| Subscription | Multi-year contract | Mid-tier with unlimited AI credits and full feature set for growing contractors |
| Subscription | Multi-year contract | High-volume tier for larger residential projects with AI Takeoffs |
| Subscription | Annual | Enterprise-grade with API access, custom integrations, and SLA |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels7 records
1build product offering
Product offeringCore offering
1build operates two integrated products: (1) the 1build Universal Catalog API delivering live construction cost data on 68 million materials, labor, equipment, and assemblies across 3,000+ US counties, and (2) Handoff, an AI-powered construction estimating and project management platform used by residential contractors to generate bids, proposals, and run projects end-to-end. The company also offers on-demand human estimating services through estimating.1build.com.
Product overview
1build operates as a dual-product company with two distinct offerings: (1) The 1build API (also called Universal Catalog API) provides programmatic access to 68 million live construction costs across 3,000+ US counties for software developers and integrators. (2) Handoff is an AI-powered, end-to-end construction project management and estimating platform targeting contractors. Handoff is offered across four pricing tiers (Flex, Pro, Scale, Enterprise) providing escalating capabilities from basic AI estimating with 50 credits/month to enterprise API access. Key modules include AI Estimating, AI Proposals, AI Site Walkthroughs, AI Takeoffs, AI Renderings, AI Voice Transcription, AI Client Portals, AI Job Costing, Invoicing & Payments, Client Financing, QuickBooks Integration, and Zapier Integration. The company also offers on-demand human estimating services through estimating.1build.com as a complementary offering.
Differentiator
Problem solved
Functional benefit
Brands
- Handoff: AI-powered construction estimating and project management platform for contractors
Products and services
- 1build API (Universal Catalog API)
Quantifiable outcome
- Generate accurate estimates in under 2 hours for projects up to 5,000 sqft
- +2 more outcomes
Companies that use 1build
Customer profileNamed customers9 records
Segments7 records
Ideal customer profiles3 records
1build technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration7 records
AI capability10 records
Feature9 records
1build partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- Home DepotcoreLive Home Depot store pricing integrated into every estimate. Contractors get accurate, real-time pricing from Home Depot locations to use in their project estimates.
- Lowe'scoreLowe's pricing integration providing real-time store pricing data for use in construction estimates.
- QuickBookscoreBi-directional sync with QuickBooks Online. Estimates, invoices, and payments sync automatically. No double entry or midnight reconciling required.
- Acorn FinancecoreClient financing partnership enabling homeowners to pay over time. More clients say yes when the number isn't due all at once.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
1build competitors and assessment
Company assessmentBroad incumbents
- ServiceTitan: Large public contractor software platform serving residential and commercial trade contractors. Comparable on CRM, estimating, and invoicing workflows but operates at much larger scale and primarily in trades (HVAC, plumbing, electrical) rather than remodelers.
- Procore Technologies: Dominant construction management platform primarily serving commercial general contractors. Competes with the Handoff project management suite but focuses upmarket on large commercial projects where 1build does not play.
Direct peers
- Buildertrend: Leading residential construction management platform for home builders and remodelers. Competes head-on with Handoff's project management, CRM, and customer portal features, and has begun adding AI estimating capabilities.
- Jobber: Field service management software for home service contractors (HVAC, plumbing, electrical, landscaping). Highly comparable to Handoff for the trade contractor and handyman segments with overlapping CRM, scheduling, and invoicing functionality.
- RSMeans Data (ConstructConnect): Long-established construction cost data provider (now part of ConstructConnect) serving the same 'live construction cost data' need that 1build's API addresses. Closest direct competitor for the developer/API and cost-database use case.
- CoConstruct: All-in-one construction management software for custom home builders and remodelers. Closely comparable target customer (residential remodelers and home builders) with overlapping estimating, client communication, and project tracking workflows.
- Clear Estimates: Construction cost estimating software with pre-built cost databases for residential and light commercial projects. Directly competes with 1build's estimating and cost-data capabilities for SMB contractors.
- Houzz Pro: Software offering from Houzz targeted at home remodeling and design professionals, including estimating, proposals, invoicing, and client management. Directly comparable to Handoff's core remodeler and home builder value proposition.
- Stack: Construction takeoff and estimating software for contractors. Directly comparable to 1build's AI Takeoffs and estimating modules, with a similar SMB residential contractor customer profile.
Regional players
- Buildxact: Construction estimating and project management software focused on residential builders and remodelers in Australia and New Zealand. Same product category and target customer as Handoff but operates in different geographies.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
1build social profiles
Digital presence1build compliance and trust
Trust signalCompliance2 records
1build financial estimates
Financial estimateRevenue estimate
Valuation estimate
1build leadership team
Management profileNumber of profiles
Profiles2 records
1build funding detail
Funding detailFunding overview
Funding rounds3 records
Investors8 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
1build M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about 1build
What does 1build do?
1build operates two integrated products: (1) the 1build Universal Catalog API delivering live construction cost data on 68 million materials, labor, equipment, and assemblies across 3,000+ US counties, and (2) Handoff, an AI-powered construction estimating and project management platform used by residential contractors to generate bids, proposals, and run projects end-to-end. The company also offers on-demand human estimating services through estimating.1build.com.
Is 1build a public or private company?
1build is a private company. It is classified as venture growth investor backed and is currently operating.
When was 1build founded?
1build was founded in 2019. It employs 11 to 50 people.
Where is 1build based?
1build is headquartered in Brandon, United States, in the North America region.
How does 1build make money?
Three revenue lines are on record. Subscription Plans (SaaS) is the primary driver. The others are on-Demand Estimating Services and client Financing.
Who are 1build's main competitors?
Broad incumbents on record are ServiceTitan and Procore Technologies. Direct peers are Buildertrend, Jobber, RSMeans Data (ConstructConnect), CoConstruct, Clear Estimates, Houzz Pro and Stack. Buildxact is listed as a regional player.
Does 1build have an API?
Yes. 1build provides a modern API for live construction cost data offering access to 68 million materials, labor, equipment, and assemblies costs for every US county. Developers can implement the API with a single line of code to access a catalog of construction data. The Universal Catalog API provides direct API access to material prices that users can integrate into their own systems to retrieve up-to-date pricing information. Developer documentation is at developer.1build.com.
What industry is 1build in?
1build's product category is Construction Estimating Software. Its primary akta.pro industry code is HDAEAEAE, Construction & Engineering ERP (Job Costing, Project Controls). Its NAICS code is 51821 and its SIC code is 7371.