Ishizaka Inc. by the Numbers
About Ishizaka Inc.
Years Since Establishment
58years
Number of Employees
Approximately230people
*Group total, as of October 2025
Percentage of Female Managers
50%
*As of October 2025
Global (Foreign National) Employees
7countries
*As of October 2025
Total amount of waste collected through the “Zero Waste” initiative (cumulative)
786m3
We have been continuing volunteer clean-up activities around our headquarters since 2002.
Annual Number of Visitors
Approximately
60,000people
Number of Countries of Overseas Visitors
more than
55countries and regions
We operate our plant and satoyama (woodlands) integrally and open them as an environmental education venue.
The facility attracts many visitors not only from the local community but also from across Japan and overseas.
Environmental Initiatives
Area Restored
170,000m2
We have restored land equivalent to about 3.6 Tokyo Domes into areas where nature can thrive.
Number of Plant and Insect Species
Living in the Farm and Satoyama
441species
(227 plant species, 214 insect species)
Amount of CO2 Emissions Reduced
4,001t
*91.77% reduction compared to FY2020.
About the Industrial Waste Treatment Business
Reduction and Recycling Rate
98%
We pride ourselves on our industry-leading technology with a 98% reduction and recycling rate. We continue to pursue the challenge towards achieving 100% recycling.
Annual Waste Treatment Volume
239,657t
Facility Tour and Training Program
We offer factory tours throughout the year that are open to all visitors.Our programs include tours designed for adults, family-friendly tours for parents and children, as well as tours tailored for companies and organizations.We provide customized courses based on your needs, including the theme, budget, and available time.
Contact Us
For inquiries regarding industrial waste acceptance, media interview requests, or consultations about collaboration and partnerships, please contact us here.
