Insights

Enterprise Credibility Join is trusted by 50% of ENR top 50 GCs, signaling strong credibility with large construction firms and providing a ready-made reference base for executive outreach, case studies, and expansion within those accounts.

Mid-Market Growth With 51-200 employees, Join aligns with mid-market contractors, owners, and design teams seeking scalable collaboration; emphasize fast onboarding, rapid ROI in preconstruction, and expansion within existing client portfolios.

Design Collaboration The platform is designed to unify contractors, owners, and design teams around cost, timeline, and design clarity, making it a compelling fit for projects with complex design coordination and high change risk.

Integrations Ready REST and Express in the tech stack indicate an API-friendly architecture, enabling potential integrations with BIM, ERP, and other construction tools; pitch as a central collaboration hub that increases deployment reach and cross-sell opportunities.

Regional Focus Based in Oakland, California, Join has a regional base that lends itself to a West Coast growth strategy; tailor outreach to California and nearby markets with messages on rapid deployment, local references, and alignment with regional construction workflows.

Join Tech Stack

Join uses 8 technology products and services including Linkedin Insight Tag, REST, Google Fonts API, and more. Explore Join's tech stack below.

  • Linkedin Insight Tag
    Analytics
  • REST
    Api Management
  • Google Fonts API
    Font Scripts
  • WordPress Block Editor
    Page Builders
  • Python
    Programming Languages
  • HSTS
    Security
  • Google Search Console
    Web Analytics
  • Express
    Web Frameworks

Media & News

Join's Email Address Formats

Join uses at least 1 format(s):
Join Email FormatsExamplePercentage
First@join.buildJohn@join.build
96%
FLast@join.buildJDoe@join.build
4%

Frequently Asked Questions

Where is Join's headquarters located?

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Join's main headquarters is located at Oakland, California United States. The company has employees across 6 continents, including North AmericaAsiaEurope.

What is Join's stock symbol?

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Join is a publicly traded company; the company's stock symbol is MBT.

What is Join's official website and social media links?

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Join's official website is join.build and has social profiles on LinkedInCrunchbase.

What is Join's NAICS code?

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Join's NAICS code is 23 - Construction.

How many employees does Join have currently?

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As of June 2026, Join has approximately 83 employees across 6 continents, including North AmericaAsiaEurope. Key team members include Head Of Product: D. W.Head Of Design: A. Z.Head Of Customer Success: J. S.. Explore Join's employee directory with LeadIQ.

What industry does Join belong to?

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Join operates in the Construction industry.

What technology does Join use?

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Join's tech stack includes Linkedin Insight TagRESTGoogle Fonts APIWordPress Block EditorPythonHSTSGoogle Search ConsoleExpress.

What is Join's email format?

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Join's email format typically follows the pattern of First@join.build. Find more Join email formats with LeadIQ.

When was Join founded?

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Join was founded in 2017.

Join

ConstructionCalifornia, United States51-200 Employees

Join offers a platform that unites contractors, owners, and design teams to address cost, schedule, and design clarity during preconstruction and the design phase. The software supports cross-disciplinary collaboration to help teams make informed decisions and keep projects aligned.

Based in Oakland, California, Join operates as a mid-sized company in the construction industry, serving stakeholders involved in a range of project types. The company’s online presence is at join.build.

Section iconCompany Overview

Headquarters
Oakland, California United States
Website
join.build
Stock Symbol
MBT
NAICS Code
23 - Construction
Founded
2017
Employees
51-200

Section iconFunding & Financials

  • $25M$50M

    Join's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    Join's revenue is estimated to be in the range of $25M$50M

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