Decarb123 Pte Ltd is a Singapore-based private investment holding company backing selective ventures across circular economy, waste-to-resource, and low-carbon transition themes.
We back founders and operating entities working on resource efficiency, low-carbon infrastructure, and circular economy themes across Southeast Asia.
Decarb123 acts as a patient holding company — deploying capital, supporting governance structures and helping operating entities scale sustainably over time.
Our investment exposure spans waste-to-resource, sustainability advisory, household energy efficiency, and the broader low-carbon transition across Southeast Asia.
We work with a small number of partners at any given time. Relationships are built on strategic alignment and shared conviction, not transaction volume.
A selective record of active holdings and live platforms operated under the Decarb123 umbrella.
Sustainability advisory, feasibility design and funding support for circular economy and low-carbon transitions — operated under its own brand across Southeast Asia.
Visit circulartransitionpartners.comA consumer-facing utility helping Singapore homeowners reduce electricity bills, improve home comfort and make more informed household energy decisions.
Visit home.decarb123.comWe focus on the roles a holding company is best placed to play — allocating capital, structuring partnerships, and supporting governance — while operating entities lead in the field.
We take concentrated positions in ventures where we have genuine conviction about the team, market and long-term trajectory. We are not a diversified fund.
Decarb123 works closely with portfolio entities on governance design, incentive structures and strategic priorities — not just at entry, but throughout the relationship.
We are most useful to partners who value a long-term, collaborative relationship. We are not a transactional capital provider looking for a quick exit.
New ventures and tools benefit from shared brand authority, infrastructure and network under the Decarb123 umbrella from day one.
Headquartered in Singapore. Primary focus on Southeast Asia, with interest in scalable cross-border models.
Decarb123 is a holding company, not a consulting firm. Operational delivery sits with portfolio entities and implementation partners.
Decarb123 operates a modular platform architecture, allowing each subdomain to serve its audience independently without diluting the parent brand.
The institutional reference point for partners, counterparties and aligned collaborators seeking context on who we are and how we work.
A practical, audience-specific tool helping homeowners navigate energy costs, appliance decisions and household efficiency.
Additional subdomains can be launched for tools, insights or venture surfaces as the platform grows — without adding complexity to the parent site.
No. Decarb123 is a private investment holding company. Consulting delivery and project execution sit with portfolio entities and implementation partners, not the holding company.
We allocate capital, support governance, structure strategic partnerships and help portfolio entities create long-term value — particularly in circular economy and low-carbon sectors.
Investors, potential portfolio partners, co-investors and aligned collaborators. Operational or project-level enquiries should be directed to the relevant portfolio entity.
This is the institutional reference point for Decarb123 Pte Ltd — providing context on our role, portfolio and approach for partners and counterparties.
For investment, portfolio, partnership or platform discussions, please reach us directly by email.
hello@decarb123.comThis website is for informational purposes only. It does not constitute an offer to invest, an invitation to acquire securities, or a solicitation of public capital.
Consumer-facing tools and utilities are available on dedicated Decarb123 subdomains where relevant.