HAMPTON, N.H., Nov. 03, 2025 (GLOBE NEWSWIRE) -- Unitil Corporation (NYSE:UTL) (unitil.com) today released its 2025 Corporate Sustainability and Responsibility Report (the "CSR" or the "Report"). The Report highlights the Company's 2024 successes as well as continuing initiatives in 2025, and outlines progress toward its commitment to environmental sustainability, human capital management, safety and reliability, and customer engagement.

"We are pleased to highlight the key initiatives that demonstrate our deep commitment to the sustainability of our Company, our employees, our communities, and our planet," said Thomas P. Meissner, Jr., Unitil's Chairman and Chief Executive Officer. "As we transform our business to meet the ever-changing energy needs of future generations, we are firmly engaged in our sustainability initiatives, and we are excited to share our progress."

Featured topics in the 2025 CSR include:

Governance and Integrity
Carbon Reduction and Environmental Stewardship
Operational Safety and Reliability
Employee Development and Safety
Customer Satisfaction and Engagement

The web-based, interactive, and mobile-responsive CSR aligns with SASB reporting standards, and includes industry-specific metrics in accordance with the American Gas Association and Edison Electric Institute reporting templates for regulated electric and gas utility companies.

To view Unitil's CSR and learn more about Unitil's sustainability initiatives, please visit:

https://unitil.com/2025-Sustainability-Report.

About Unitil Corporation

Unitil Corporation is a public utility holding company with operations in Maine, New Hampshire, and Massachusetts. We provide energy for life by safely and reliably delivering electricity and natural gas in New England. We are committed to the customers we serve and the communities we support, and to developing the people, business practices, and technologies needed to provide dependable and efficient energy service. Together, our operating utilities serve approximately 109,400 electric customers and 103,900 natural gas customers. For more information about our people, technologies, and community involvement please visit unitil.com.

For more information please contact:

Christopher Goulding – Investor Relations

Phone: 603-773-6466

Email: gouldingc@unitil.com

Amanda Vicinanzo – External Affairs

Phone: 603-691-7784

Email: vicinanzoa@unitil.com

Unitil Releases Corporate Sustainability and Responsibility Report