PubMatic Partners with Cedara to Advance Sustainable Advertising Across Omnichannel Campaigns

London, 9 September 2025 - PubMatic (Nasdaq: PUBM), an independent technology company delivering the future of digital advertising, today announced a new partnership with Cedara, the AI engine for sustainable media, to ensure sustainable practices are integrated into every stage of the media lifecycle. Both active Ad Net Zero supporters, the two companies aim to equip advertisers and agencies with actionable environmental insights and tools to reduce the impact of their digital media campaigns.

As part of PubMatic's unified platform for buyers, this integration brings sustainability to the forefront of supply path optimisation and curation strategies. Buyers can now leverage sustainability signals alongside performance, quality, and audience data to curate media supply paths aligned with their Environmental, Social, and Governance (ESG) goals, all within the same platform.

"In today's market, environmental responsibility is not optional, it's essential," said Emma Newman, CRO EMEA at PubMatic. "Our partnership with Cedara empowers advertisers to embed sustainability seamlessly into media planning, enabling them to deliver campaigns that perform exceptionally while advancing their environmental goals."

"Our congratulations to PubMatic and Cedara." added Anthony Falco, Global Media Sustainability Director, Ad Net Zero. "Strategic partnerships like this will help move the industry toward a lower-carbon future by aligning advertising practices with global environmental standards. Embedding Greenhouse Gas (GHG) emissions calculations into platforms and tools, alongside other media metrics, means advertisers and media buyers can make informed, carbon-aware decisions."

Through this collaboration, PubMatic clients will gain access to a comprehensive, science-based analysis of the environmental impact associated with media investments, both pre- and post-campaign. This enables smarter planning, informed optimisation, and a path toward greater media efficiency. Cedara's methodology is fully aligned with the recently updated Ad Net Zero Global Media Sustainability Framework (GMSF), providing consistent, industry-backed metrics across the advertising supply chain.

Beyond detailed measurement and emissions reduction solutions, Cedara facilitates carbon compensation through access to a portfolio of verified, high-quality climate action projects. This enables advertisers to take immediate, impactful steps toward environmental targets, whether to comply with regulatory requirements or to meet ambitious science-based reduction commitments.

Key Benefits and Capabilities of the Integration Include:

• Science-based environmental impact analysis of media investments, including industry benchmarking, using the globally recognized GMSF framework
• Actionable data pre- and post-campaign to inform reduction strategies and optimize planning
• Real-time optimization of campaigns towards sustainable media suppliers
• Access to verified environmental projects for compensating unavoidable impact
• Alignment of campaign execution with ESG objectives and broader sustainability commitments

"The marriage of sustainability and media performance is a critical evolution for the advertising industry," said Eric Shih, Chief Operating Officer at Cedara. "By working with PubMatic and leveraging the enhanced GMSF standards, we're providing agencies and brands with a powerful toolkit to make thoughtful, measurable, and energy-conscious decisions."

This announcement further underscores PubMatic's commitment to sustainability leadership across the digital advertising ecosystem, making it easier for advertisers to plan, execute and optimize media campaigns in a way that supports both business and environmental outcomes.

About PubMatic

PubMatic (Nasdaq: PUBM) is an independent technology company maximising customer value by delivering digital advertising's supply chain of the future. Its sell-side platform empowers the world's leading digital content creators to control access to their inventory and increase monetisation, while enabling advertisers to drive ROI and reach addressable audiences across formats and devices. Founded in 2006, PubMatic's infrastructure-driven approach delivers scalable, real-time innovation that improves outcomes for its customers and supports a vibrant, transparent digital ecosystem.

About Cedara

Cedara is transforming the media industry by accelerating sustainability at every level. With a comprehensive suite of enterprise-grade measurement and optimization solutions, Cedara empowers media companies to drive superior performance while minimizing environmental impact across both operations and advertising campaigns. Its high-impact platform enables clients to seamlessly maximize ROI through energy-efficient, data-driven strategies that align business growth with sustainability goals.

Founded in 2021, Cedara is headquartered in New York City, with offices in the US, UK, France, Germany, and Australia. Learn more at cedara.io.