Join

What Join does

Join Inc. is a venture-backed software company founded in 2017 and headquartered in San Francisco that sells a unified preconstruction and design phase management platform to the US construction industry. The platform is organized into seven core modules (Stakeholder Engagement, Validation and Programming, Design Management, Preconstruction Intelligence, Cost Analysis, Transition to Operations, and Procurement) that together provide a shared system of record for cost, schedule, risk, and decision data across owners, general contractors, design teams, and trades. Underlying capabilities include a centralized historical cost database (Join Benchmarking) integrated with Gordian RSMeans cost indexes, a real-time decision/risk/cost/schedule data model with a persistent audit trail, and a 'Bring Your Own Agent' extensibility layer built on the open Model Context Protocol (MCP) plus a REST API that allows customers to connect external AI applications and agents directly to the platform.

The company's go-to-market is enterprise sales-led, with quote-based annual subscriptions, a 'Book a Demo' and 'project-intake' funnel, no public price list, and no freemium or self-serve tier. Distribution is reinforced by deep integrations and marketplace listings with Autodesk Construction Cloud (Build, Docs, BIM 360, Revit, ProEst), Procore (Estimating, Documents, Change Events), Trimble WinEst, Beck DESTINI, Sage Estimating, Egnyte, Microsoft Excel, and Gordian, plus strategic investors DPR Construction and STO Building Group (parent of Layton) who also serve as flagship customers and reference channels. Reported scale includes 1,000+ customer companies, 1,000+ projects, and $10B+ in aggregate decision impact, with named enterprise wins across DPR Construction, Barton Malow, Layton, McCarthy, Swinerton, XL Construction, Parkway Construction, Boldt, Clark Construction, W.E. O'Neil, Level 10, and Kitchell, among others.

Join monetizes entirely through subscription SaaS with annual billing and no maintenance fees, and reports SOC 2 compliant practices plus GDPR-equivalent data-transfer safeguards in its privacy policy. The team is small (11-50 employees) and unusually hybrid: over 50% are alumni of leading US general contractors and design firms (Clark, DPR, Hensel Phelps, Layton, XL, Level 10, Perkins & Will, NBBJ, Skidmore Owings & Merrill), with technical leadership drawn from Google X, Autodesk, and Palantir. Capital history includes a roughly $4M seed in 2019 (Building Ventures, SignalFire, Bolt), a $16M Series A in June 2022 led by SignalFire, and an undisclosed growth investment in September 2025 from DPR Construction, STO Building Group, and WND Ventures.

Name

Join

Legal name

Join Inc.

Website

https://join.build

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Join is a venture-backed SaaS company, founded in 2017 and based in San Francisco, that sells a unified preconstruction and design phase management platform to US general contractors, owners, design teams, and trades, monetizing through quote-based annual subscriptions with deep integrations into Autodesk, Procore, Trimble, and Sage.

Ownership category

akta.pro rank

Product category

Construction Preconstruction Software

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

EDA Cloud/SaaS, Design Data Management & Collaboration (HDAHAFAJ)

Keywords

• Preconstruction software
• Construction cost management
• Design phase management
• Construction decision intelligence
• Target value design software

Headquarters

HQ city

Oakland

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Subscription SaaS: Subscription-based SaaS pricing for preconstruction and design phase management software. Per the FAQ, fees are subscription-based with no maintenance fees, customers always use the latest version, and pricing is competitive with other SaaS solutions in the construction industry. Quote-based / tailored pricing (no public price list).

Pricing tiers

Go-to-market motion4 records

Distribution channels5 records

Marketing channels9 records

Core offering

Join provides a cloud-based preconstruction and design phase management SaaS platform that aligns owners, design teams, and contractors around a unified system of record for cost, schedule, risk, and decision data. Built for collaborative delivery methods (Design-Build, CMAR, IPD, IFOA, TVD), it offers modules for stakeholder engagement, validation and programming benchmarking, design management, preconstruction intelligence, cost analysis, procurement, and transition to operations, with bi-directional integrations into estimating and project management tools such as Procore, Autodesk Construction Cloud, Sage, Trimble WinEst, and Beck DESTINI.

Product overview

Join is a unified preconstruction and design phase management platform (a single integrated platform composed of multiple named modules) built for the construction industry. The core platform unifies Stakeholder Engagement, Validation and Programming, Design Management, Preconstruction Intelligence, Cost Analysis, Transition to Operations, and Procurement modules to align owners, design teams, and contractors around a single system of record for cost, schedule, risk, and decision data. Building on this core, Join Agents (Bring Your Own Agent, powered by MCP + API) provides an AI extensibility layer that connects external AI applications and agents to the platform, while the Join + TestFit AI Real Estate Feasibility Integration extends the offering to early-stage real estate feasibility through Trimble Marketplace.

Differentiator

Problem solved

Functional benefit

Brands

• Join Benchmarking: A historical cost benchmarking and validation feature/product within the Join platform, used to price early estimates, access unit costs, and validate project viability.
• Join Scenarios

Products and services

• Stakeholder Engagement Collaborative infrastructure module that keeps project stakeholders aligned in real time through Decision Tracking, Reporting, Cost & Schedule Trending, Scenario Analysis, and Risk Management, clarifying and prioritizing preconstruction decisions for general contractors, owners, and design teams.
• Validation and Programming Module that assesses project viability early using historical-cost benchmarking and early estimates to reduce uncertainty, align on scope, and set projects up for success before design begins; includes the Join Benchmarking historical cost repository.
• Design Management Module that centralizes design timelines and critical requirements so teams deliver design on schedule, including a Design & Preconstruction Timeline importable from OPC, P6, Microsoft Project, Planera, or Phoenix and Critical Project Requirements tracking.
• Preconstruction Intelligence Enterprise-wide module that consolidates cost data, decisions, insights, and standards, including a Historical Cost Database, Enterprise Knowledge Sharing, Portfolio Summary dashboard, and Workflow Standardization via firm-wide templates.
• Cost Analysis Module that unifies cost considerations from conceptual estimates through contracted cost, including Cost Trending, Value Engineering, Conceptual Estimating, Target Value Design, Owner Cost Management, and Contingency & Allowance Management.
• Transition to Operations Module that bridges preconstruction and operations by preserving full history of decisions and risks, with Item and Risk History and change-management integrations to Procore and Autodesk Construction Cloud.
• Procurement Module that coordinates fast-track procurement with design and cost trending during preconstruction to keep scope, pricing, and schedule aligned for trades and general contractors.
• Join Agents (Bring Your Own Agent / MCP + API)

Named customers19 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration11 records

AI capability10 records

Feature8 records

Partnerships

Four partnerships are on record, tiered core.

• Autodesk Construction Cloud (Autodesk Build, Autodesk Docs, ProEst, Revit)coreTechnology or IntegrationDeep technology integration enabling OAC collaboration throughout Precon and into Construction; bi-directional link from accepted Join Items to Potential Change Orders in Autodesk Build; Autodesk Revit Viewer embedded in Join for live OAC meetings; Join Partner Card for Autodesk Construction Cloud Insights dashboards. Join is a member of the Autodesk Developer Network and listed on the Autodesk App Store.
• Procore (Estimating, Documents, Change Events)coreTechnology or IntegrationBi-directional integration with Procore Estimating (import estimates into Join Milestones), Procore Documents (link documents to Items/Milestones), and Procore Change Events (auto-create from accepted Join Items). Join is a member of the Procore Developer Network and is listed on the Procore App Marketplace.
• Trimble (WinEst)coreTechnology or IntegrationIntegration enabling import of cost estimates from Trimble WinEst into Join Milestones; Join also recognized at the 2025 Trimble 0-60 Challenge and has integrations available on Trimble Marketplace.
• Model Context Protocol (MCP)coreTechnology or IntegrationJoin exposes an MCP server + REST API so customers can connect any external AI application or agent to Join for ad hoc analysis, automated routine actions, and coordination of AI work alongside human teams. Adopts the open Model Context Protocol standard.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Procore: Public construction project management platform covering estimating, change events, documents, and financials. Joins the most established preconstruction-adjacent incumbent and a direct integration partner, but its scope spans the full project lifecycle rather than preconstruction-only.
• Autodesk Construction Cloud: Broad construction platform spanning Autodesk Build, Docs, BIM 360, Revit, and ProEst. Joins deepest integration partner for OAC collaboration and Potential Change Orders, but competes across the wider project lifecycle and could natively extend into preconstruction.
• Trimble: Diversified construction technology vendor with Trimble WinEst, Trimble Marketplace, and Trimble Connect. Integrates with Join for estimate import and awarded Join jointly with TestFit at its 2025 0-60 Challenge, while competing across estimating and project management.
• Sage Estimating: Established construction estimating suite widely used by GCs for detailed cost estimating. Competes directly in preconstruction estimating workflows while also being a Join integration partner via the Sage Partner Network.

Direct peers

• Beck Technology (DESTINI Estimator): Preconstruction estimating software focused on conceptual and detailed cost estimating for owners and design-build teams. Direct peer in preconstruction estimating and a live integration partner that imports DESTINI estimates into Join Milestones.
• BuildingConnected (Autodesk): Preconstruction bid management and trade network owned by Autodesk; competes in the same multi-stakeholder preconstruction workflow that Join serves, particularly around bid invitation and trade coordination with GCs and owners.
• Planera: Collaborative scheduling and preconstruction planning software purpose-built for construction teams. Direct peer in preconstruction planning, with Join supporting timeline import from Planera as part of its design and preconstruction timeline feature.

Emerging players

• ALICE Technologies: AI-based construction planning and schedule optimization platform that explores millions of schedule options to compress project timelines. Competes with Join's scenario modeling and schedule optimization capabilities as an AI-native entrant.
• TestFit: AI-driven real estate feasibility and site planning platform for developers, architects, and GCs. Recently partnered with Join on a Trimble Marketplace integration after their joint win at Trimble's 2025 0-60 Challenge, making them both collaborator and partial competitor.
• Briq: AI-native construction financial planning and forecasting platform for GCs. Overlaps with Join's Cost Analysis module and preconstruction cost trending from a finance-forward angle, representing an emerging AI-native alternative for the same buyer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/joindotbuild
• LinkedInlinkedin.com/company/joindotbuild

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds3 records

Investors8 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Join