Where design ends, automation begins.
ChangSoft Global is an independent entity leading the digital transformation (DX) of the global AEC market through automated rebar placement technology.
“Crossing borders with technology, setting the global standard with trust.”

Hello, I am Jongeun Park, CEO of ChangSoft Global.
The global construction market is one of the largest industries in the world — yet rebar detailing, the very heart of structural engineering, still depends on engineers' hands and countless hours. ChangSoft Global is now taking on this long-standing bottleneck that has persisted even amid decades of technological progress.
Our core weapon, BuilderHub-R (BH-R), fully automates the entire process with a single click — from SS7 data to rebar placement, clash checking, precise quantity takeoff, and Revit BIM output — powered by an automation engine unlike any other. Drawings that once took engineers weeks of overnight work are now realized in minutes, in a zero-clash, construction-ready state. That is the innovation ChangSoft Global has proven.
Starting from Japan — the most precise and demanding market — we are advancing boldly toward Vietnam, and on to the Eurocode and U.S. markets. Design codes and field practices differ from country to country, but the value of automation — overwhelming productivity and cost savings — transcends every border.
Through complete localization of each country's rebar standards, we will help engineers around the world focus on more valuable design work. I invite you to join ChangSoft Global's ambitious journey — proving ourselves with technology and expanding with trust — as a steadfast partner.
Thank you.
Jongeun Park, CEO of ChangSoft Global
When structural design is done, the work of translating those results into truly constructible rebar placement remains. Until now, this process has relied on manual work — heavy, slow, and varying from person to person.
ChangSoft Global redefines this domain with automation technology. Taking structural design data, it automatically realizes rebar placement per country-specific standards (JIS·KCI), detects clashes, and produces constructible models and precise quantities.
We are not a company that makes modeling tools — we are a company that codifies engineering knowledge into automation technology.
ChangSoft Global newly launches as an independent entity dedicated to the global business of ChangSoft I&I, a Korean ConTech specialist. It inherits the BIM and automated-rebar technology its parent company has accumulated over roughly 20 years, along with a proven track record adopted by 70% of Korea's top 30 general contractors.
History
- 2008
Founded ChangSoft I&I
- 2016
Launched BuilderHub
- 2021
Expanded adoption among top-tier Korean contractors
- 2024
Established BnB Solutions (Japan JV) · Launched BuilderHub-Q/JP
- 2026
Launched ChangSoft Global · Full-scale global operations · Launched BuilderHub-R
Where we come from
Starting from ChangSoft I&I
A ConTech specialist that has accumulated structural BIM and automated-rebar technology for about 20 years since its founding in 2008.
Adopted by 70% of Korea's top 30 GCs
Proven BIM automated-rebar and quantity-takeoff technology chosen company-wide by Korea's major general contractors.
Launching as a global independent entity
Newly starting as an independent entity dedicated to global business centered on Japan and Korea.
2.5M+ lines of proprietary codebase
Not a combination of external libraries — an automated-rebar engine developed in-house from the ground up, with its own patents.
