Responsible sourcing
Our sustainable supply chain strategy
Delivering sustainability at every step is core to how we operate. As part of our commitment to our people, society, and the planet, Calix continuously evaluates and strengthens the sustainability practices of our supplier partners.
We are dedicated to making a positive global impact and seeing a powerful opportunity to formalize our commitment to responsible sourcing. By doing so, we drive value across our industry, support the communities our customers serve, and contribute to a more sustainable world.
Scaling with purpose
Better, better, never best.
At Calix, our supply chain transformation is driven by visibility, agility, and innovation. From AI-led planning and real-time digital twins to sustainability commitments and trusted supplier partnerships, we’re building a future-ready supply chain that scales with purpose.
Read how VP of Supply Chain Tim Leight and the Calix team are orchestrating change that fuels growth, resilience, and long-term impact.
Resilinc R-Score Ranking
A leader in supply chain excellence
Calix advanced to the top 15 on Resilinc’s 2025 list of the most resilient high-tech companies—up one spot from last year. The annual ranking recognizes companies with the strongest supply chain risk and sustainability programs, based on Resilinc’s proprietary R Score® metrics and data.
Ecovadis
Our partner in sustainability
Environmental, social, and ethical performance—or sustainability—is an essential factor for Calix, and the supply chain is one of the biggest levers for impact. Partnering with EcoVadis, the world’s most trusted provider of sustainability ratings, we create transparency in our supplier network and to build a more sustainable future for all.
Sustainability has become a key part of our supplier onboarding process. Most Calix suppliers not only participate in assessing themselves with EcoVadis, but have also completed almost 100 classes in the EcoVadis academy.
Overall EcoVadis Maturity scores consistently improved from 1.80 (reactive) in July 2023 to 2.64 (responsive) in July 2024, and 3.01 (proactive) by July 2025.
Supplier coverage remained high while the average supplier score trended upward to 58, with 60% of suppliers showing improvement since their last assessment.
Initiatives like the creation of a Supplier Code of Conduct and 86 EcoVadis Academy classes taken, supported these capacity building and continuous improvement results.
Our commitments
We make commitments in three focused areas
Calix trusts and audits suppliers to uphold our Code of Conduct and keep improving their standards over time.
Sustainability is embedded in every step of the supply chain and sourcing, from onboarding to continuous performance reviews and audits.
Our supply chain and sourcing managers are not only trained in sustainability, but also empowered to innovate and improve our environmental impact.
Four core sustainability themes
- Environment
- Labor and human rights
- Ethics
- Sustainable procurement
We monitor the entire life cycle of products and impacts from production processes and product use through end-of-life.
Of our suppliers representing 80% of Calix spending:
- 33% have a science-based climate emission target
- 50% are already reporting on Scope 3 emmissions
- 75% utilize renewable energy.
- 75% report on energy consumption and GHG emissions.
- 87% have waste management actions in place.
- 89% engage in actions for the reduction of energy consumption and GHG emissions
We expect our suppliers to provide evidence of their focus on employee health and safety, acceptable working conditions, training, diversity, and equity.
Supplier diversity
Diverse suppliers help to foster a more equitable business climate and drive innovation. It's also a meaningful tool for economic growth and job creation, especially in often overlooked communities.
The goal of the Calix supplier diversity program is to continuously look for ways to increase the level of spending with diverse suppliers—suppliers that are owned by minorities, women and other under-represented groups.
To achieve this goal, Calix includes supplier diversity as a criterion when awarding new business and when onboarding new suppliers.
Our supplier contracts, as well as our Supplier Code of Conduct, clearly set expectations in regard to corruption, anti-competitive practices, and responsible data management.
Of our suppliers:
- 95% have a policy on corruption, labor and human rights.
- 88.3% have a policy on information security.
Using our Supplier Code of Conduct, Calix asks suppliers to determine how to meet, demonstrate, and integrate their compliance. Calix expects suppliers to apply the Code’s principles to continuous improvement efforts aimed at advancing performance over time.
- We audit our suppliers annually on environmental and social procurement practices.
- Quarterly supplier reviews related to sustainability goals and overall performance metrics are scored and reviewed. These factors have full consideration for new awards of business.
- On-site Supplier audits are conducted annually by our Quality team.
Training
Our supply chain and sourcing managers are required to take sustainability training and are encouraged to educate themselves and bring ideas and solutions forward.
Our suppliers have access to EcoVadis Academy and are encouraged to use the tools available to continuously drive improvement in sustainability—focusing on assessing their environment, labor and human rights, company ethics, and sustainable procurement themes.
Looking Ahead
Building tomorrow’s resilience
As we look to the future, Calix is committed to continuously strengthening the sustainability, resilience, and transparency of our supply chain. We will advance our efforts by deepening collaboration with supplier partners, expanding responsible sourcing practices, and accelerating progress toward lower‑carbon, ethically produced materials. Our goal is to build a supply chain that not only meets today’s expectations but also anticipates tomorrow’s environmental and social responsibilities.