Creating a World Where Every Packaging Has a Second Life
Our VisionWe envision a future where every piece of post-consumer packaging can be collected, traced, recycled, and returned to the economy—creating value for businesses, communities, and the environment.
Our MissionMaking Circularity Measurable
Our mission is to accelerate the transition toward a circular economy by making post-consumer packaging management transparent, accessible, and data-driven.
We achieve this by connecting collection infrastructure, digital technology, and local communities into one integrated ecosystem that enables responsible packaging management at scale.
It Started with One Question
“Why is it so difficult to know what happens to a packaging after it is thrown away?”
That question became the foundation for Sirsak:
building the digital infrastructure that connects every stage of the post-consumer packaging journey.
To address the fragmented and unverified post-consumer packaging journey—where recycling data is lost and waste collectors go unrecognized—Sirsak created a connected technological ecosystem. By partnering with brands, recyclers, governments, and local communities, Sirsak strengthens waste networks and provides the transparency needed to make circular packaging measurable, inclusive, and impactful.
Milestones
2023
Founded Sirsak
In order to solve Indonesia's post-consumer waste problem.
2024
Partnered with Leading Brands
Supporting EPR implementation and started building collection network.
2025
Digital Solutions
Launched digital solutions for waste banks.
2026
The Great Expansion
Established recycling facility for low value waste and launching consumer facing app & collection points while expanding partnerships across the value chain.
Milestones
2023
Founded Sirsak
In order to solve Indonesia's post-consumer waste problem.
2024
Partnered with Leading Brands
Supporting EPR implementation and started building collection network.
2025
Digital Solutions
Launched digital solutions for waste banks.
2026
The Great Expansion
Established recycling facility for low value waste and launching consumer facing app & collection points while expanding partnerships across the value chain.
Our Co-Founders
Angeline Callista
Co-Founder & Chief Executive Officer
Angeline is a waste management policy expert with 10 years experience across sectors, driving circular economy solutions through Sirsak. Certified in Circular Economy & ESG, with an MSc from London School of Economics.
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Violy Purnamasari
Co-Founder & Chief Operating Officer
Violy combines expertise in finance, sustainability, and community building. She’s raised $14M for startups, led waste education for 100K+ people, and holds an MPhil from Cambridge.
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Lie Mangkusatya
Co-Founder & Chief Product Officer
Mangku blends IT leadership with waste management expertise, having led SAP implementation in FMCG and founded a waste collection company. He holds an Industrial Engineering degree from BINUS.
Read MoreOur Supporters
We Elevate the People Behind Every Collection
Technology can improve waste management, but lasting change is driven by people. By supporting waste workers, strengthening local communities, and building inclusive partnerships, we're creating a circular economy that works for everyone.
Beyond Waste
Humans of Waste
Stories Celebrating the People Behind Every Collection
Social Protection
Protecting the People Who Protect Our Environment
Women Empowerment
Empowering Women Through Circular Economy
Let's Make Meaningful Impact
