Synergy Global Housing Launches CarbonSMART: Advanced Emissions Calculator for Serviced Accommodations
Enables Informed Stay Choices Aligning with Company and Personal Environmental Objectives
Houston, TX, June 30, 2025 — Synergy Global Housing (Synergy), a leader in corporate housing and serviced accommodation program management, today announced the launch of CarbonSMART, a proprietary carbon emissions calculation and reduction tool purpose-built for the extended stay and serviced accommodation sector.

CarbonSMART stands apart from other carbon calculators in that it combines Synergy’s highly-detailed 33-question Green Leaf sustainability assessment with industry benchmark data. The result is in-depth, property-specific emissions reporting for Synergy’s owned/managed properties and supplier partner network. Integrated with Synergy’s SAPPHIRE technology solution, clients can easily view carbon data, filter accommodations by metrics and sustainable features, and benchmark progress across programs, regions and properties.

“As part of our commitment to environmental leadership, we have designed CarbonSMART to deliver nightly benchmark carbon metrics, providing better transparency and encouraging sustainable practices across our portfolio offerings,” said Cara Lingle, Vice President, Global Supply Chain and Sales, Americas. “This empowers both individual travelers and program managers to make more informed accommodation choices in response to growing demand for sustainability and visibility.”
Key features of CarbonSMART include:
- Carbon emissions per property, per night (mtCO2e or tCO2e)
- Sustainability ratings via Green Leaf tiers and CarbonSMART metrics
- Visibility on sustainable efforts at the provider and property level
- Reporting by booking volume, spend, and region
- Supplier benchmarking and performance insight

“We built CarbonSMART to bridge the gap between guest choice and supplier transparency,” said Aaron Turner, Chief Technology Officer at Synergy. “This tool helps our clients track Scope 3 emissions from accommodation usage with far greater precision than anything else in the market today. More importantly, it gives our partners a roadmap to strengthen their sustainability practices.”
CarbonSMART is a central component of Synergy’s broader environmental impact strategy which includes such recent milestones as:
- A 4% reduction in emissions in 2024
- A Silver rating from EcoVadis, ranking in the top 15% of 130,000+ companies evaluated
- A net-zero emissions commitment by 2045
- Industry-first integration of scope-specific emissions data into program management reporting
CarbonSMART is the latest enhancement to Synergy’s recently launched SAPPHIRE technology tool, an API-enabled solution that streamlines extended stay and serviced accommodation management for corporate travel and mobility.

To learn more about SAPPHIRE and CarbonSMART carbon emissions calculator, visit https://www.synergyhousing.com/sapphire/.
About Synergy Global Housing
Synergy is an international serviced accommodation provider delivering superior hospitality-driven extended-stay experience to the business travel and mobility industries. Providing best-in-class housing and services in over 2,000 cities in more than 150 countries, the company has offices in China, Singapore, India, England, Ireland and multiple locations throughout the United States.
Recognized globally, Synergy’s recent awards include the 2025 Advancing Excellence from the Corporate Housing Provider’s Association, and the 2024 and 2023 Company of The Year; 2024 and 2023 Travel Partner of The Year: Alternative Accommodation Operator from the Business Travel Awards; 2023 ITM Service Excellence Team; 2022 Operations Team of the Year from the Business Travel People Awards; and 2025, 2024 and 2023 Serviced Apartment Provider of the Year Regional/Global from Relocate Magazine.
Synergy is a member of The Ascott Limited (Ascott), a leading international hospitality company with over 950 properties globally. Headquartered in Singapore, Ascott’s presence extends across more than 230 cities in over 40 countries in Asia Pacific, Central Asia, Europe, the Middle East, Africa, and the USA. Ascott’s diversified accommodation offerings span serviced residences, coliving properties, hotels and independent senior living apartments, as well as student accommodation and rental housing. Its award-winning hospitality brands include Ascott, Citadines, lyf, Oakwood, Somerset, The Crest Collection, The Unlimited Collection, Fox, Harris, POP!, Preference, Quest, Vertu and Yello.
Ascott is the wholly-owned lodging business unit of Singapore-listed CapitaLand Investment Limited (CLI), a leading global real asset manager with a strong Asia foothold.