About GreenSweep
GreenSweep is operated today by GreenSweep Pte. Ltd. (Singapore, UEN 202619802N). A Malta Purpose Foundation parent, to be registered under Chapter 16 of the Laws of Malta, is in formation. The platform converts everyday online engagement into directed environmental funding through a community voting model. GreenSweep generates revenue through advertising partnerships and directs 70% to independently verified environmental projects chosen by registered users. The remaining 30% covers operations during the initial period; the Malta Purpose Foundation structure, once incorporated, will legally obligate the founders to ratchet that fee down as revenues allow. Overall impact efficiency reaches 85–96% when corporate sustainability capital and matched funding — which flow 100% to projects — are included. Co-founded by Byron Fuller and Hiram Powers-Heaven, GreenSweep was built on the premise that ordinary people deserve a mechanism to direct environmental funding proportionally to where they think it matters most.
Our Mission
Convert everyday online engagement into directed environmental funding, chosen by the people who care most.
Billions of people engage with content online every day, generating real commercial value. Yet that value rarely flows to causes they care about. GreenSweep changes that. When you engage with us—create an account, vote on projects, share with friends—the commercial value of your attention is directed to verified environmental projectsyou choose. You don't donate. You don't pay. You simply vote.
The Problem
Environmental funding is controlled by a small number of professional philanthropists, foundations, and government bodies. Ordinary people who care deeply about climate, biodiversity, and environmental justice have no mechanism to direct funding proportionally to where they think it matters most. Meanwhile, the attention economy captures billions in value from engaged users—value that never reaches environmental causes.
How GreenSweep Works
Build a transparent platform that directs commercial engagement value to verified environmental projects chosen by community votes. No donations required. No charity fatigue. Just a self-sustaining model that treats environmental impact as something earned through engagement, not guilt-driven from charity appeals.
Free to vote. Verified projects only.
Our Founders
Byron Fuller
Co-Founder, GTM Strategy & Technology
Byron and Hiram have been collaborating since high school, beginning with a venture they still refer to as “the Golden Dumpling” — a story that deserves its own blog post, recipe included. Over the years, their joint projects kept circling the same question: how do you attach a commercial engine to genuine impact without the engine eventually swallowing the mission?
Byron has spent his career at the intersection of physical and digital frontiers — most recently building a 100+ person team in APAC deploying new IoT technologies for clients including the Hong Kong MTR. He studied at Dartmouth, UPenn, and Harvard, and holds a PGDip from the Saïd Business School at Oxford. He is a member of Asia Sustainability Angels and the Oxford Union, speaks English and German natively, and divides his time between France and Singapore.
GreenSweep is the answer he and Hiram arrived at — like many of their best ideas — over a bottle of good wine and an argument about what “scale” actually means when applied to environmental outcomes. It takes lessons they learned applying commercial engines to impact through Forestr.ai and scales them up to a level where the funding mechanism itself becomes the platform. Byron remains deeply sceptical of greenwashing — a scepticism GreenSweep's verification and transparency standards reflect.
Hiram Powers-Heaven
Co-Founder, Legal Architecture & Governance
Hiram is co-founder of GreenSweep and the architect of its legal and governance structure. A tax and estate planning attorney by training, he holds a J.D. and an LL.M. in Estate Planning and Taxation from Georgetown University Law Center, where he was a finalist in the American Bar Association's Law Student Tax Challenge. He practised at Pillsbury Winthrop Shaw Pittman and Stewart, Plant & Blumenthal before turning to entrepreneurial ventures.
Hiram's legal background shapes GreenSweep in ways that are unusual for a technology platform. The Foundation's purpose-locking mechanism, its revenue allocation commitments, and its regulatory compliance architecture all reflect the mindset of someone who spent years structuring trusts and estates — instruments designed to survive their creators' intentions intact. His approach to GreenSweep's governance is the same: build structures that enforce mission by design, not by goodwill.
Beyond GreenSweep, Hiram is a founder of Forestr.ai and Managing Member of Wardman Wines. He serves as GreenSweep's Data Protection Officer and is based in Germany.
Why a Purpose Foundation?
GreenSweep is being established as a Malta Purpose Foundation under Chapter 16 of the Laws of Malta. This is not the obvious choice. We could have been a registered charity, a benefit corporation, a cooperative, or even a for-profit company with a stated mission. We chose the Purpose Foundation specifically because of what it ensures under Maltese law.
✓ Legally Binding Purpose
Our environmental mission will be written into our founding documents in a way that cannot be changed, even by founders. A future board cannot pivot to a different mission or dilute our commitment. The law itself enforces our purpose. This is stronger than a traditional charity's mission statement—it is a legal constraint.
✓ No Profit Extraction
Founders and administrators cannot distribute profits to themselves, period. All revenue either funds environmental projects or covers legitimate operational costs. The incentive structure aligns our success directly with impact, not personal gain. We don't exit. We don't sell to a larger entity. We simply execute our mission.
✓ Regulatory Accountability
Once incorporated, we will file annual financial accounts with the Malta Business Registry and will be subject to Maltese corporate law and EU regulatory standards, including GDPR. Our structure provides transparency equivalent to a traditional charity, with the operational flexibility to innovate in how we generate and direct funding.
✓ Operational Flexibility
Registering as a traditional charity would lock us into certain governance structures that don't fit our commercial partnership revenue model. The Purpose Foundation gives us the accountability of a charity with the ability to innovate, iterate, and scale in ways traditional nonprofits struggle to do.
GreenSweep vs. Traditional Charity
| Structure | GreenSweep | Traditional Charity |
|---|---|---|
| Revenue Model | Commercial partnerships | Donations, grants |
| Purpose Legal Binding | Enforced by law | Enforced by board |
| Profit Distribution | Prohibited | Prohibited |
| Operational Flexibility | High | Medium |
| Financial Accountability | Public filing + Voluntary transparency | Public filing |
Governance & Accountability
GreenSweep Pte. Ltd. is governed under Singapore law today. Once the Malta Foundation parent incorporates, it will be governed under Maltese law and subject to EU regulatory standards. Here's how we hold ourselves accountable:
Public Registration
Upon incorporation, our registration, founding documents, and annual financial accounts will be filed with the Malta Business Registry and available for public inspection. You will be able to verify our legal status anytime.
Real-Time Financial Data
We publish revenue, allocations, and impact metrics on our Impact Dashboard in real time. You don't have to wait for annual reports; you can see exactly where money flows every day.
External Verification
Every environmental project on GreenSweep is independently verified by Gold Standard, Verra/VCS, or Plan Vivo. Curation is based on verified science and rigorous third-party standards, not editorial opinion.
Data Protection Officer
We have appointed a Data Protection Officer as required by GDPR. You can contact our DPO directly with any privacy or data concerns.
Audit Commitment
As the foundation grows, we commit to engaging independent auditors and publishing their reports. Published audits and quarterly financial summaries are available on the transparency page.
The 70% Commitment
Platform Revenue
From day one
With Matching
Philanthropic partners
At Scale
With corporate sustainability
For every euro of platform revenue, seventy cents is committed to environmental projects chosen by community votes, routed via our CSR partners. The remaining thirty cents covers platform development, team salaries, legal compliance, and growth. This 70% allocation will be written into our founding documents upon incorporation, and it will be mandatory.
But that is only the beginning. Our operating costs are fixed — they do not grow as additional funding enters the system. When philanthropic partners match community-directed funding, every matched euro flows entirely to projects, raising overall impact efficiency to 85%. When corporate sustainability partners direct capital through GreenSweep, efficiency climbs further — toward 96% of every euro in the system reaching the ground.
This is the core insight: GreenSweep is designed so that the more the platform grows, the more efficient it becomes. The overhead is absorbed once; everything else scales impact.
Impact Efficiency: How It Scales
Our operating costs are fixed. Every additional euro of matching or corporate funding flows 100% to projects.
Fixed costs, scaling impact
GreenSweep's operating share is capped at a fixed amount drawn from platform revenue. As matched funding and corporate sustainability partnerships grow, overall impact efficiency rises from 70% toward 96%.
The Ratchet Clause
Our founding documents will commit us to a ratchet clause: as operational efficiency improves, the project share of platform revenue must increase. The ratchet only goes one direction — toward greater impact. Combined with matched funding and corporate partnerships, our trajectory moves from 70% impact efficiency at launch to 85% with matching, and over 95% at scale.
How GreenSweep Compares
Percentage of revenue directed to programmes and projects
The ratchet only goes up
GreenSweep starts at 70% of platform revenue to projects. With matched funding, total impact efficiency rises to 85%. With corporate sustainability partnerships at scale, it exceeds 95%. Our operating costs are fixed, so every additional euro flows entirely to projects. The ratchet clause ensures efficiency only goes up.
Sources: CharityWatch, Charity Navigator, organisation annual reports (2023–2024). GreenSweep figures represent platform revenue (70%), total system efficiency with matched funding (85%), and total system efficiency including corporate sustainability capital (up to 96%).
Verification Standards
Every project on GreenSweep meets rigorous verification standards. We only work with projects certified by:
Gold Standard
Founded by leading environmental nonprofits, Gold Standard certifies projects that deliver genuine climate and development outcomes with verified additionality.
Verra (VCS)
Voluntary Carbon Standard (VCS) is the world's leading certification program for greenhouse gas emission reductions.
Plan Vivo
Specializes in land-based conservation projects, measuring carbon sequestration, biodiversity, and community development impact.
These standards assess environmental impact and measurability, verify that projects wouldn't happen without funding (additionality), confirm that impact will persist (permanence), and ensure no double-counting across systems. We use these not because they're easy, but because they're rigorous and because we refuse to greenwash.
Verify Our Status
You can verify GreenSweep's legal status and filed documents at:
Malta Business Registry
Public search portal for business registrations and filed accounts.
Visit MBR Public Search →Once registered, our founding documents and annual financial accounts will all be publicly available. We invite scrutiny.
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Certification marks (Verra, Gold Standard, Plan Vivo) are property of their respective organisations.