Marten Transport Ltd. Completes Full GHG Emissions Inventory with Good.Lab

Marten Transport, Ltd. (“Marten”) is a leading freight and logistics company with over 75 years of experience.  The company has long prioritized efficiency, safety, and responsibility across its operations. From investing in fuel-efficient fleets to fostering a more inclusive workplace, Marten consistently takes action to improve both environmental and social outcomes, setting a high standard for the industry.

As expectations around sustainability reporting increased, Marten recognized an opportunity to enhance its greenhouse gas (GHG) accounting efforts. The company has partnered with Good.Lab over multiple years to complete a comprehensive GHG emissions inventory across Scopes 1, 2, and 3.

Thanks to close collaboration between Marten and Good.Lab, the project progressed efficiently, and delivered a complete, GHG Protocol-aligned inventory. The results give Marten the ability to track emissions year over year, evaluate future climate-related risks, and advance its long-term sustainability strategy.

ESG & Sustainability Goals

• Complete a full GHG emissions inventory across Scopes 1, 2, and 3 for the second year in a row
• Use emissions data to monitor trends and identify areas for operational improvement
• Prepare for upcoming climate disclosure regulations, including California’s SB 253 and SB 261

ESG & Sustainability Drivers

• Momentum following prior internal sustainability work and an earlier GHG assessment
• Alignment of emissions tracking with Marten’s broader sustainability values and efficiency initiatives
• Anticipation of state-level climate regulations affecting transport and logistics providers
• Strengthening of customer relationships by proactively responding to sustainability assessment requests like EcoVadis

From Values to Action: How Marten Began Its GHG Emissions Inventory Work

Two years ago, Marten accelerated its sustainability journey by partnering with Good.Lab to formalize its greenhouse gas (GHG) reporting. Building on a long-standing commitment to responsible operations, the company has continually invested in fuel-efficient trucks, aerodynamic trailers, and smarter logistics to reduce empty miles. Today, Marten’s 15 terminals reflect the same forward-thinking approach  featuring energy-saving technologies such as waste heat recovery systems, efficient LED lighting and solar panels that help power daily operations.

In parallel with its environmental initiatives, Marten has worked to create a more inclusive and supportive workplace. The company has been recognized multiple times by Women in Trucking as a top employer for women and continues to foster a culture centered on safety, respect, and personal accountability.

At the outset, Marten’s goal was to translate its operational progress into measurable climate data. By completing a full GHG inventory, the company could track emissions across Scopes 1, 2, and 3, prepare for upcoming climate regulations, and better understand its impact over time.

Why Marten Trusts Good.Lab – Multiple Years and Counting

When Marten first began working with Good.Lab to build a full greenhouse gas emissions inventory, the collaboration quickly proved to be a good fit. The team appreciated Good.Lab’s ability to listen carefully, adapt to their needs, and provide clear guidance – drawing on industry-specific experience in logistics, including work with an Amazon supplier on comprehensive GHG reporting and an EcoVadis assessment.

When it came time to update their GHG inventory the following year, Marten returned to Good.Lab, moving through data collection even more efficiently. The relationship was marked by strong communication, fast turnaround, and mutual trust. Again Good.Lab’s team provided direct support on emissions calculations. The process included customized data templates to match Marten’s operations and quick turnaround times that helped the team stay ahead of deadlines.

Tools and Guidance Used to Support Marten’s GHG Emissions Inventory

Good.Lab supported Marten with a practical set of tools, templates, and expert input to help structure the company’s GHG emissions reporting. The guidance was designed to fit Marten’s operations, ensuring results aligned with both customer expectations and industry standards.

What Good.Lab Delivered:

Complete GHG Inventory
Good.Lab worked with Marten to calculate emissions across Scopes 1, 2, and 3 using a GHG Protocol-aligned approach. Data inputs included fuel usage from Marten’s fleet, facility energy use, upstream activities, and other indirect sources.

EcoVadis Documentation Support
Good.Lab helped Marten enhance its EcoVadis submission by aligning emissions data with scoring criteria and providing clearly documented evidence to support sustainability claims.

Industry Benchmarking
To support strategic planning and goal-setting, Good.Lab provided a benchmarking analysis comparing Marten’s emissions profile and sustainability program maturity to peers in the freight and logistics sector.

What’s Next on Marten’s Sustainability Roadmap

With multiple years of GHG reporting experience in place, Marten is carrying forward momentum across its broader sustainability efforts. The company continues to build on a strong foundation of operational efficiency and environmental responsibility, with initiatives like solar panel installations at its terminals and on its fleet of tractors. In 2023 alone, these systems generated over 3 million kilowatt hours of electricity and offset more than 2,000 metric tons of CO₂ emissions across its facilities.

In parallel with emissions tracking, Marten is reducing its carbon footprint through targeted efficiency improvements. Initiatives like optimized routing, equipment upgrades, and temperature management have led to emission reductions of over 60% per load in some cases. In 2024, the company also began testing zero-emission vehicle (ZEV) technology, including trucks powered by compressed natural gas (CNG), to explore cleaner alternatives in its fleet. Read more about their new initiatives here.

With robust systems and a proven track record, Marten is well-positioned to meet evolving expectations and continue advancing its sustainability strategy.