About PlantStream

Our Mission

“Revolutionize Plant Design, Boost Creativity”​

PlantStream was established in 2020 as a joint venture between Arent Inc. and Chiyoda Corporation. In 2025, it became a subsidiary of Arent and was subsequently merged into the company. Today, we continue to develop and market the 3D CAD software PlantStream.  

The plant industry still has a number of design-related issues where there is room for improvement, such as human and environmental impact. PlantStream was launched with the aim to develop and provide next-generation 3D CAD to free engineers from labor-intensive work and creat a world where they can maximize their creativity. ​

About Arent Inc.

Arent Inc. is a start-up that brings together industry-leading CAD engineers. With a mission to “Democratizing tacit knowledge”, the company specialises in DX consulting and new business creation in the construction industry, where many inefficiencies remain. Listed on the Tokyo Stock Exchange Growth market (a Japanese stock exchange for emerging companies) in March 2023.

Our Worldwide Presence

Leadership Messages

Takehito Miki

President, PlantStream Company (Division of Arent Inc.)
Linkedin

Pioneering the Future of Plant Engineering

Plant engineering is an extremely complex process that demands vast amounts of data and advanced expertise. To achieve optimal outcomes within the constraints of cost and schedule, it is essential to ensure both safety and efficiency. However, the industry is currently facing significant challenges, including the declining number of experienced engineers and the increasing reliance on individual expertise and know-how.

At the same time, the environment surrounding the plant engineering industry is rapidly changing, driven by energy transition and the push toward carbon neutrality. In this new era, plant engineering must embrace digital technologies to enhance efficiency and enable data-driven decision-making at an advanced level.

At PlantStream, we are committed to addressing these challenges. Our solution promotes knowledge transfer and succession, transforming plant engineering into a more efficient and creative discipline.We aim to create an environment where engineers can focus on innovation and bring new value to the industry.

Together, let’s build a sustainable future through the evolution of plant engineering.

Takeshi Oda

Executive Director, Arent Inc. / Head of Technology, PlantStream
Linkedin

Unleash human creativity with the right tools.

While PlantStream is a highly efficient CAD system, it goes far beyond that by revolutionizing the design workflow with the potential to reinvent ideas themselves. Bringing out the best of human creativity and making the software to support it. 

This has been my mission since beginning a career as a programmer. PlantStream is making it a reality, enabling plant engineers all around the world to unleash their creative potential.

PlantStream Award Record​

good digital award Grand prize in the start-up category

the Digital Agency (2022)
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Japan DX Awards Finalists.

Japan DX Awards Executive Committee (2022)
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Engineering Encouragement Special Award

Engineering Advancement Association of Japan (2021)
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PlantStream News

Feature Updates to the "ASPO" Add-in Series for Plant Design and Fabrication

Arent and JGC Jointly Develop End-to-End Automation for 3D Piping Design

ASPO Officially Released: Bridging Plant Design and Construction with Integrated Data

Strategic Partnership Agreement Signed with CIAR to Expand PlantStream Business in Argentina

PlantStream Presents Version 1.0.34

Media Coverage Announcement - Arent CEO Featured in The Worldfolio Interview

PlantStream Presents Version 1.0.33

Strategic Partnership Agreement Signed with Tecnoconsult to Expand Business Across North and South America

Official Release of P&ID Parsing AI Tool “PlantStream AIDE” on March 1, 2026

PlantStream Presents Version 1.0.32

Announcement: Launch of the New User Portal Site

PlantStream Featured in Piping Engineering December 2025 Issue

PlantStream Establishes Overseas Subsidiaries in the United States and Spain

PlantStream Implementation Interview Published with Malaysia’s IFP Engineering Group

Notice: Termination of PlantStream Help Center and Launch of New Support Portal

PlantStream Implementation Case Study Published at Leading U.S. EPC Contractor S&B

Notice of Merger of PlantStream into Arent

PlantStream Announces Two AI Features — Early Access for P&ID Parsing Tool “PlantStream AIDE” and Pre-Release Notice for “PlantStream with AI Agent”

PlantStream Implements Foundational API Functionality for External Integration

Partnership Agreement Signed with TP Engineering Associates for Business Expansion in Australia

PlantStream Presents Version 1.0.30

PlantStream Officially Releases Integration Package with Aspen Capital Cost Estimator (ACCE), Enabling High-Precision and High-Speed MTO Workflows

Notice of Change of Registered Head Office Address

Leadership Transition Announcement

PlantStream Inc. to Present at the 15th ENAA’s BtoB Community Seminar

Notice of Change of Registered Head Office Address

PlantStream Inc. was Featured in the June Issue of "The Piping Engineering" Published by Japan Industrial Publishing Co., Ltd.

【Webinar】Revolutionize MTO with PlantStream's Auto Routing

PlantStream Showcases Innovations in Electrical Instrumentation Design at Zuken's Online Seminar

PlantStream was Featured in the Magazine of the JAPAN Society of Piping Engineers

PlantStream Featured on the Cover of the April Issue of “The Piping Engineering” Published by Japan Industrial Publishing Co., Ltd.

PlantStream Ranks 5th in ENN's 2024 Engineering IT Survey for Plant Design 3D CAD

PlantStream contributes to the 3D model design of the large-scale water electrolysis system jointly developed by Chiyoda Corporation and Toyota

PlantStream was Featured in Japan Industrial Publishing Co., Ltd. 70th Anniversary Commemorative Booklet

National Oil Company Specifies PlantStream in their Invitation to Bid (ITB) as the Recommended Software for 3D Model Creation

Partnership Agreement Signed with IFP Group for Business Expansion in Southeast Asia

Interview with PlantStream CEO Seitaro Narue Featured in Engineering Advancement Association of Japan

PlantStream was Featured in “Plant Hyakkei” -

Contact Us

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Additional information

Arent Group Products

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