CalcTree

What CalcTree does

CalcTree is a Sydney-based engineering SaaS company that provides a cloud-native calculation management platform for structural, civil, and electrical engineering workflows. The platform targets individual engineers, engineering managers, engineering consultancies, and infrastructure firms globally, addressing pain points around manual data handling, fragmented project knowledge, and the inability to verify calculations against project design documents. Named enterprise customers include AECOM, Arcadis, Aurecon, Jacobs, Mott MacDonald, and WSP, alongside a long-tail user base spanning 110+ countries.

The core platform is built around Parameters (linked data sources across spreadsheets, scripts, and calculations), Projects (real-time collaboration with version control), and Templates (a public library of 200+ engineering-grade templates plus private workspace templates covering AS, ACI, AISI, AISC, and Eurocode standards). Native integrations include Excel (upload and parameter mapping), Python (embedded scripting), and a public GraphQL API documented at calctree.gitbook.io. On top of this foundation, CalcTree has introduced AI capabilities — a Knowledge Base module that ingests user-uploaded project documents (specifications, geotechnical reports, client briefs, existing calculations) and CalcTree AI, which generates and reviews engineering calculations grounded in those documents rather than generic training data, with vendor-reported outcomes of 10x faster reviews and 70% better QA.

CalcTree operates a freemium SaaS model: individuals sign up for free at app.calctree.com, while paid tiers unlock additional collaboration, storage, and advanced features. Enterprise accounts are acquired through a direct sales motion via the "Book a call" CTA and a dedicated Enterprise solution page. The company is privately held and venture-backed, having raised approximately $5.2M across three funding events (Feb 2022 Antler-led $612,715; Oct 2022 Foundamental-led $825,000; May 2025 Foundamental-led $3.8M pre-seed with participation from Standards Australia, Suffolk Technologies, Antler, and Kungari). The legal entity, CALCTREE OPERATIONS PTY LTD (ABN 12654726913), is domiciled in New South Wales, Australia, and the company is GDPR-compliant.

Name

CalcTree

Legal name

CALCTREE OPERATIONS PTY LTD

Website

https://calctree.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

CalcTree is a Sydney-based cloud SaaS platform that enables engineers and engineering consultancies to build, collaborate on, and review structural, civil, and electrical calculations, with AI features grounded in user-uploaded project documents.

Ownership category

akta.pro rank

Product category

Engineering Calculation Software

NAICS

Software Publishers (513210)

SIC

Services-Prepackaged Software (7372)

akta.pro industry

PRIMARYEDAFADAC

Test Item Banks, Question Authoring & Assessment Design Tools

Education/Education Technology (EdTech) & Digital Learning/Assessment, Testing, Proctoring & Credentialing Platforms

SECONDARYBPAEANAG

Cloud & DevOps Training (Cloud, Containers, CI/CD, SRE)

Business & Public Services/IT & Digital Services (Managed Services, Systems Integration)/IT Training & Technical Enablement Services

Keywords

• Engineering calculation software
• Calculation management platform
• Structural engineering tools
• Engineering project collaboration
• Engineering SaaS platform

Headquarters

HQ city

Sydney

HQ country

Australia

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. SaaS Subscription: CalcTree operates as a subscription-based SaaS platform. Users can sign up for free and access a subset of features; paid tiers unlock additional capabilities, storage, and collaboration features. The platform offers self-serve registration and also targets enterprise accounts through direct sales calls.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

CalcTree provides a cloud-based SaaS platform for creating, managing, sharing, and collaborating on engineering calculations in real time. The platform supports parametric calculations, version history, a template library, Excel and Python integration, and AI-powered features for knowledge management and calculation automation, targeting structural, mechanical, civil, geotechnical, and MEP engineers across consultancies, infrastructure firms, SMEs, and individual practitioners.

Product overview

CalcTree is an engineering SaaS platform that provides a unified calculation management system for structural, civil, and engineering workflows. The core platform consists of Parameters (for connecting data sources), Projects (for real-time collaboration), Templates (public and private calculation templates), Excel Integration, Python Integration, and a GraphQL API. On top of the core platform, CalcTree offers AI-powered add-ons including the Knowledge Base (document repository for AI context) and CalcTree AI (for building, extending, and reviewing calculations using AI grounded in user's own documents). The platform supports engineering calculations across multiple international standards including Australian Standards (AS 3600, AS 1720, AS 1684), US standards (ACI 318, AISI S100, AISC 360), and European Eurocode standards, serving engineering consultancies and infrastructure firms globally.

Differentiator

Problem solved

Functional benefit

Products and services

• CalcTree Platform A cloud-based SaaS platform for creating, managing, sharing, and collaborating on engineering calculations in real time. Built for structural, mechanical, civil, geotechnical, and MEP engineers across individual practitioners, SMEs, and large enterprises, it provides parametric calculation management with cross-calculation data linking, version history, a template library, real-time multi-user collaboration, and integrations with Excel and Python.
• CalcTree AI AI-powered add-on module that augments the CalcTree Platform with intelligent assistance for engineering calculations and project management. Positioned as an add-on/module that engineers and teams can subscribe to on top of the core platform.
• CalcTree Knowledge Base AI-powered add-on module that indexes, searches, and edits engineering documents, enabling teams to surface institutional knowledge from across their calculation and project libraries. Offered as an add-on/module on top of the core CalcTree Platform.

Quantifiable outcome

• Users report 10x faster engineering calculation reviews and 70% better QA when using AI-powered calculation review features

Named customers6 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability5 records

Feature7 records

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@CalcTree
• LinkedInlinkedin.com/company/calctree

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds3 records

Investors4 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 CalcTree