A platform that promotes litter picking
Pirika
Used in 137 countries and regions, with over 460 million pieces of litter collected. Pirika makes cleanups by individuals, governments and companies visible and easier to join.
Recycling
A new way out for waste.
We turn plastic waste that was hard to recycle, such as littered and washed-up waste, into resources. We make boards from mixed, dirty waste and turn them into products such as park benches.
Our Goals
Collect more
Build a system that turns waste into resources
We work on collecting and recycling waste that was hard to recycle, such as littered waste, litter washed ashore, and company-specific waste. If waste can be bought as a raw material, more of it can be collected.
Raise interest
Deliver products made from waste
Products made from waste help people who rarely think about litter learn about the problem and our work. We make items such as benches and shopping baskets, and place them in parks and convenience stores.
Technology
Littered and washed-up waste mixes many kinds of plastic and is dirty, so it has been hard to recycle.
Our technology needs no fine sorting or pelletizing. It costs less than the conventional method and accepts dirt and impurities.
Conventional method
Collect
Sort
Crush
Pelletize
Mold
One material only, costly
New technology
- Collect
- No fine
sorting 
Crush- No
pelletizing 
Mold
Mixed materials OK, lower costSome dirt and impurities are OK
Track Record
We have turned artificial turf, fishing nets, oyster-farming pipes, litter picked up in parks and other waste into benches, sports equipment and shopping baskets.
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2026
Discarded artificial turf → bench
Sumida Park (Sumida City), Tokyo, and others
Tokyo Metropolitan Government startup support program for social issues. We made four designs together with enloop®.
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2025
Discarded artificial turf → dustbox cover
Hino City and Tama City, Tokyo
Tama Innovation Ecosystem program. We confirmed that CO2 emissions are 22.5% lower than when the artificial turf is disposed of.
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2026
Fishing nets and oyster-farming pipes → bench
Yamaguchi Prefectural Office, an elementary school in Suo-Oshima Town, and others
Yamaguchi Prefecture "Marine Plastic Reborn Bench" project. We made benches from fishing gear collected in the prefecture.
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2026
Litter from a park → bench
Mizuho Park, Nagoya City, Aichi Prefecture
Aichi Sports Innovation Consortium (AiSIA). We made boards from litter collected in a cleanup, without sorting it (prototype).
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FY2022-2025
Artificial turf → marker cone
Yokosuka City, Kanagawa Prefecture
SHIBA-UP (F. Marinos Sports Club and Yokosuka City). The marker cones were donated to schools in the city.
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2023 and 2025
Litter washed ashore → shopping basket
7-Eleven (Takamatsu City; Osaka-Kansai Expo)
Part of the raw material was oyster pipes collected in October 2022 from a beach on Suo-Oshima, Yamaguchi Prefecture, during the Scout Association of Japan "Plastic Waste Busters" project (sponsor: Seven-Eleven Foundation).
Smaller Recycling Units for Remote Islands
We aim for local use of waste: turning collected waste into resources on the spot, without carrying it out of the area.
We are now working to set up and run our first container-type recycling unit on Iriomote Island.
Feel free to contact us about recycling waste.
Services
Pirika offers environmental services, from litter collection and surveys to recycling.
Litter distribution survey
Takanome
AI analyzes road videos to survey littering and illegal dumping. It measures the effect of countermeasures and suggests improvements to keep towns clean.
Surveys, pollution control, business support
Consulting
Pirika consultants provide environmental surveys, pollution control and support for environmental businesses, tailored to each client.
Current page
Turning litter and beach waste into resources
Recycling
We develop technology and businesses to recycle plastic and other waste that was hard to recycle before.
Automating beach litter cleanup
Robotics
Robots make collecting and carrying litter washed ashore more efficient. We also accept requests to exhibit them at environmental events.