WholeTrees, LLC

Architecture and Structural Engineering

Madison, Wisconsin

United States


About WholeTrees

WholeTrees is the national leader in engineering round timber for commercial construction. WholeTrees Structural Products are pre-engineered wood components made from unmilled round timbers, a byproduct of sustainable forest management. These assemblies utilize 4"-24" diameter trees that are 50% stronger than their comparably sized milled lumber counterparts. As part of WholeTrees' engineered structural systems, these timbers provide a low embodied energy and high CO2 capture alternative to steel, recycled steel and traditional milled lumber. Product packages come with engineer-stamped shop drawings, designed steel connection details, and easy installation guidelines. WholeTrees also offers installation services nationally, and its products fit in Type II, III, IV, and V construction and are definable as Heavy Timber within the International Building Code.

The Madison, WI-based company was founded in 2007 by architect Roald Gundersen, AIA, and Amelia Baxter. WholeTrees provides design services and products for custom applications of timber in construction; engineering and consultation; project management and sub-contracting; and cutting-edge research and development of technologies that enable the forest products industry to sell round-timber, making buildings stronger and forests profitable. A woman-owned regenerative enterprise, WholeTrees was a winning recipient of the 2015 Barrett Foundation Business Concept Challenge. WholeTrees is affiliated with the U.S. Green Building Council (USGBC), Wisconsin Green Building Alliance, Associated Builders and Contractors, Inc., and is an AIA Continuing Education Service Provider. As a Qualified New Business Venture (QNBV) through the Wisconsin Economic Development Corporation (WEDC), WholeTrees is recognized as a tax deductible investment for state investors.

WholeTrees builds prosperous relationships with forests and communities. We became a B Corp in our tenth year to celebrate our continued commitment to sustainable business and innovation in the forest products and commercial construction sectors.

The Change We Seek®

WholeTrees has employed proven sophisticated methods for efficient structural analysis of trees, diverting structurally appropriate timber from forestry waste streams to higher-value structural markets. By choosing WholeTrees, building professionals can directly incentivize sustainable timber stand improvements that increase the carbon storage capacity of our forests. By adding value to this resource, WholeTrees supports sustainable forest management that allows forests to perform better as carbon sinks and yield higher production, as well as create rural forestry and manufacturing jobs. Additionally, WholeTrees frequently harvests invasive species such as black locust to allow for natural habitat regrowth and promote biodiversity in the nation's forests. WholeTrees works to instill a love for nature, promote conservancy, support rural forest economies, and restore a sense of awe and delight in woodlands across the country.

What makes us a better company?

B Impact Report

Certified since: 

April 2017

Company Score

Median Score*



The Environment section of the Assessment evaluates a company's environmental performance through its facilities; materials, resource, and energy use; and emissions. Where applicable, it also considers a company's transportation/distribution channels and environmental impact of its supply chain. This section also measures whether a company's products or services are designed to solve an environmental issue, including products that aid in the provision of renewable energy, conserve resources, reduce waste, promote land/wildlife conservation, prevent toxic/hazardous substance or pollution, or educate, measure, or consult to solve environmental problems.



The Worker section of the survey assesses the company's relationship with its workforce. This section measures how the company treats its workers through compensation, benefits, training, and ownership opportunities provided to workers. It also focuses on the overall work environment within the company through management/worker communication, job flexibility and corporate culture, and worker health and safety practices.



The Customers section of the Assessment measures the impact a company has on its customers. The section focuses on whether a company sells products or services that promote public benefit, and if those products/services are targeted towards serving underserved populations. Questions in this section will measure whether a company's product or service is designed to solve a social or environmental issue (e.g. improves health, preserves environment or creates economic opportunity to individuals or communities, promotes the arts/sciences, or increases the flow of capital to purpose-driven enterprises).



The Community section of the survey assesses a company's impact on its community. The Community section evaluates a company's supplier relations, diversity, and involvement in the local community. The section also measures the company's practices and policies around community service and charitable giving. In addition, this section includes if a company's product or service is designed to solve a social issue, including access to basic services, health, education, economic opportunity, arts, and increasing the flow of capital to purpose-driven enterprises.



The Governance section of the Assessment evaluates a company's accountability and transparency. The section focuses on the company's mission, stakeholder engagement, and overall transparency of the company's practices and policies.

Overall B Score

80 out of 200 is eligible for certification

*Of all businesses that have completed the B Impact Assessment

*Median scores will not add up to overall

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