Join

Collaborative decision-making platform for construction projects

Cloud-based platform that brings together contractors, owners, and design teams to facilitate real-time decision-making in preconstruction and design phases. Provides unified cost tracking, schedule integration, and collaborative decision workflows supported by integrations with leading estimating tools and project management software.

$28.2M raised Established

Founded 2017 · 1,000+ companies managing 1,000+ projects with $10B+ decision impact; 50%+ of ENR Top 30 general contractors

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WHY IT EXISTS

Why This Tool Exists

The Problem

Construction teams across owners, contractors, and design firms lack unified cost and schedule visibility, leading to siloed decisions, delayed approvals, and costly change orders. Teams spend hours in meetings reconciling spreadsheets from different stakeholders, and design alternatives are rarely compared objectively. Lack of documented decision rationale creates disputes during construction.

The Solution

Centralized decision platform that integrates real-time cost, schedule, and design data in a single source of truth. Enables stakeholders to propose alternatives, review implications, and approve decisions collaboratively. Integrates with estimating tools (DESTINI, Sage, Trimble, ProEst), Procore, and Autodesk Construction Cloud for seamless data flow. Maintains audit trail of all decisions and alternatives for legal and change management documentation.

USAGE

How You Use It

Delivery Method

SaaSWeb ApplicationMobile-responsive

Integrations

Autodesk Construction CloudAutodesk BuildAutodesk DocsBIM 360ProEstDESTINI EstimatorEgnyteGordian RSMeansMicrosoft ExcelProcoreSage EstimatingTrimble WinEst

Disciplines

Construction Management, Ownership, Design, General Contracting

Project Phases

Pre-Design, Schematic Design, Design Development, Bidding/Procurement, Construction Administration

Project Types

Commercial, Healthcare, Mixed-Use, Education, Infrastructure

TRANSPARENCY

Data Transparency

Exactly what this tool uses and how

Input

What it needs

Required: Project cost estimates, Schedule data, Design documents, Stakeholder decisions

Optional: Risk assessments, Quality metrics, Sustainability goals, Contract terms

Formats: Native integration data, Excel imports, Estimating tool data feeds, Document attachments (PDF, images)

Output

What you get

Format: Interactive decision dashboard with comparison tools and audit trails

Fields: Decision options with cost/schedule implications, Comparison matrices for design alternatives, Cost impact analysis, Schedule impact analysis, Stakeholder voting/approval status, Decision history and rationale documentation, Change order tracking, Risk impact assessment, Budget variances, Project health dashboard

Algorithm

How it works

Model: Decision management and collaborative workflow system (not AI-based)

Accuracy: Accuracy depends on underlying estimating and scheduling data; Join integrates directly with source systems (DESTINI, Sage, etc.) to maintain data fidelity

Privacy

How your data is protected

Retention: Project-based retention (stored indefinitely unless deleted; not publicly specified)

Training: Not publicly specified whether project data is used for training

Compliance: Claims enterprise-grade security, Specific certifications (SOC 2, ISO 27001) not publicly disclosed

API

Integration

Endpoint: https://api.join.build/docs/

Method: REST API

USE CASES

Use Cases

· Design-Build teams collaborating on cost and value options with unified budget tracking
· Owners presenting design alternatives with clear cost/schedule tradeoffs to board members
· Integrated Project Delivery (IPD) teams managing shared risk and value decisions
· Construction teams tracking and approving changes with decision documentation for disputes
· Target Value Delivery (TVD) workshops documenting design options and final selection rationale
· General contractors comparing subcontractor options against cost and schedule constraints
· Project teams benchmarking current project costs against historical project data

PRICING

Pricing

Free

Not offered

Pro

Contact vendor for pricing (enterprise-only SaaS)

Enterprise

Custom pricing based on team size, project volume, and contract terms

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Research Sources & Data Quality Last verified: 2026-04-04

Data Sources (11)

Verified Data (17)

problem, solution, deliveryMethod, integrations, disciplines, projectPhases, projectTypes, yearFounded, maturityStage, customerBase, fundingTotal, website, vendor, input-formats, output-fields, useCases, control-features

Not Found (6)

pricing-public-tiers, privacy-policy-document, soc2-certification-report, api-rate-limits, data-retention-days, algorithm-accuracy-metrics

Our Commitment: We only include verified data from official sources. If information isn't publicly available, we mark it as "Not publicly specified" rather than guessing.

ALTERNATIVES

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