Leading the way to a better future
Sustainable by design
We are committed to a sustainable business future for Calix, our customers and the communities they serve, through products, services and business practices that are environmentally, socially, and financially responsible.
Calix Upgraded to Rating of AA From MSCI for Sustainability
A letter from the CEO
Our commitment to sustainability
Learn how our five pillars foster a comprehensive and impactful sustainability strategy.
Stay informed
Sustainability news and insights from Calix
From shoreline cleanups to sapling planting and millions of steps logged, Calix employees worldwide turned Earth Month into meaningful, measurable environmental action.
The most overlooked sustainability strategy may be the simplest: durability. Calix Chief Sustainability Officer Martha Galley explores how designing products to last reduces waste, lowers costs, and creates long-term environmental value.
Calix's 2025 climate-related financial risk report risk report outlines our approach to identifying, assessing, and managing climate risks across our operations and supply chain.
West Carolina drives efficiency across its full-fiber network—using cabinet heat exchangers and energy-efficient upgrades to save tens of thousands of kilowatt-hours annually.
Calix and its employees mobilize to close the digital divide — bringing connectivity, tools, and expertise to underserved communities across the country.
A look back at Calix's sustainability milestones, environmental progress, and community impact across 2025—from emissions reductions to responsible sourcing.
- Earth Month
- Sustainable by design
- Climate
- West Carolina
- IFast
- 2025 lookback
Pillars of sustainability
Five pillars guiding Calix’s sustainability strategy
Technology innovation
The most sustainable broadband platform
Calix focuses on durability, efficiency, and recyclability when building, managing, and maintaining sustainable networks. The goal is to reduce the overall network and supply chain carbon footprint, including space, waste, power, and cooling resources.
Culture and social impact
Driving change where we operate and beyond
We are committed to creating a positive impact by leveraging our resources, expertise, and network to address pressing societal challenges. We believe by working together we can be a change agent that transforms communities for the better.
Sustainable supply chain
Delivering sustainability at every step
To pave the way toward a more sustainable future, we build transparency and accountability into every stage of our supply chain. Learn how we work with suppliers to promote responsible sourcing, ethical practices, and reduced environmental impact.
Sustainable enterprise
Creating a sustainable workplace and IT Infrastructure
Calix is transforming its workplace and IT infrastructure to reduce greenhouse gas emissions and create a more sustainable, flexible, and employee-friendly enterprise.
Sustainable partnership
A partner ecosystem built for impact
Sustainability extends beyond what any single organization can achieve alone. Calix partners with organizations that share a commitment to responsible practices, community investment, and long-term resilience—amplifying the collective ability to drive meaningful outcomes at scale.
While helping our customers build green broadband networks, we’re also doing our own part
We've consolidated all of our labs into one, enabling our workforce to access essential equipment—from anywhere.
Take a look at our Codes of Conduct showcasing our commitment to an environment where open, honest communications are the expectations, not the exception.
Visit our Investor Relations Portal to see what we are doing to be environmentally, socially, and financially responsible.
Milestones of progress
Awards and recognition
Calix employees deepened their climate literacy through an interactive Clever Carbon workshop on the vital role oceans play in regulating CO₂.
Calix employees underscored that the company has rapid momentum and a bright future, buoyed by high employee confidence.
Comparably recognizes Calix as a best company for diversity in 2025, based on employee feedback about their workplace experiences.
Calix is ranked among the top 16 companies out of 140,000 in the electronics, telecom, and semiconductors industries for supply chain excellence by Resilinc, a global leader in supply chain risk intelligence.
Our India Development Center location has earned the prestigious LEED Certification, a significant milestone underscores our commitment to sustainability and innovation.
Calix India Development Center has been awarded the Gold Award for Workplace Excellence in Sustainability at the iNFHRA Workplace Excellence Conference and Awards, reflecting our ongoing commitment to building a more sustainable future.
Calix earns an AA ESG rating from MSCI, placing it among the top 18 percent of companies evaluated for sustainability practices.
The Fiber Broadband Association recognized Calix for enabling communications service providers to deliver superior subscriber experiences through industry-leading end-to-end platforms.