CalcTree
Founded 2021 · 8 employees on LinkedIn · 3 known investors
CalcTree is a no/low-code platform that automates calculation and workflow tasks for engineers, reducing time spent rebuilding calculations and managing data. It serves engineers in the construction and infrastructure sectors to support design and collaboration.
Also known as CalcTree
Founders & leadership
CalcTree was founded in 2021 by Mahan Lamei, Onur Ekinci, and Tim Rawling.
Investors · 3
Also in the syndicate · 1
Funding
SEC filings, press & company announcements- Undisclosed amountpre-seedMay 2025 · 2 sourcesSource ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026CalcTree is engineering calculation management software used to build, run and review engineering calculations. The platform consolidates calculations, templates and reference documents into a single workspace and applies AI to check new work against that existing material, positioning itself as a faster and more traceable alternative to Mathcad and spreadsheets.
Core capabilities include connecting external data sources and adding parameters to pages, collaborative projects where members work together in real time, duplicating templates from a public repository for use on a project, and running Python scripts inside calculations or project workflows. The company frames the problems it addresses as manual data handling in slow and error-prone workflows, poor knowledge management arising from fragmented and unstructured data that is not linked to a relational database, and engineers repeatedly rebuilding work from scratch because storage solutions are outdated.
A template library covers structural engineering calculations such as beam analysis using Macaulay's theorem, steel base plate design to Eurocode 3, concrete column and rectangular beam design to ACI-318-19, slab-on-grade design to ACI 360R-10, concrete beam design to AS 3600, steel purlins and girts to AISI S100-16, and timber beam design to AS 1720.1:2010, as well as electrical engineering items such as a logic gates simulator.
Business model
CalcTree offers its calculation management workspace as software accessible online, with a free entry tier ("Get started for free" / "Try CalcTree free") alongside a sales-assisted route via booking a call. Teams work in shared projects with invited members, and templates can be kept in a private workspace or drawn from a public repository.
The site advertises a free entry point and a booked-call sales path; specific pricing terms are not stated.
▸Full profile — market position, technology, go-to-market, geography
Market position
CalcTree positions itself against incumbent engineering calculation tools, specifically naming Mathcad and spreadsheets as the workflows it seeks to replace for STEM engineers.
CalcTree presents itself as a faster and more traceable alternative to Mathcad and spreadsheets by keeping calculations, templates and reference documents in one workspace and using AI to check new work against prior material. Additional differentiators cited are real-time collaboration, cloud-synced connections across data sources, embedded Python scripting, and reuse of templates from a public library rather than starting calculations from scratch.
Technology
A cloud-based workspace in which users connect data sources, define parameters on pages, collaborate in real time on projects, reuse templates, and execute Python scripts within calculations or project workflows; AI is used to check new work against stored calculations, templates and reference documents.
Go-to-market
The platform is marketed directly to engineers through a self-serve free trial and a "book a call" sales motion, supported by a public template repository and an introductory product video.
STEM engineers and engineering teams, including structural and electrical engineers, engineering consultants and computational design leads, with an emphasis on firms that lack dedicated digital teams.
Geography
Customer testimonials on the company's site are attributed to practitioners in Norway, the Netherlands and Australia, and calculation templates cover multiple regional design standards including Eurocode 3, the US ACI and AISI standards, and the Australian AS 3600 and AS 1720.1 standards.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Competitors · 2
by search overlap
Companies competing with CalcTree for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
▸Research sources · 1
primary sources listed
- CalcTreecalctree.com · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does CalcTree do?
- CalcTree is engineering calculation management software that combines calculations, templates and reference documents with AI review.
- Who founded CalcTree?
- CalcTree was founded by Mahan Lamei, Onur Ekinci, Tim Rawling in 2021.
- Who are CalcTree's investors?
- CalcTree's investors include Foundamental, Suffolk Technologies.