South Mountain Company, Inc.

Residential Design/Build + Renewable Energy

West Tisbury, Massachusetts

United States

About South Mountain Company

South Mountain Company is an employee owned design build and renewable energy company on Martha's Vineyard. The company plans and develops residential and commercial buildings (and small neighborhoods) for its community. It also designs and installs solar & wind energy systems and energy efficiency improvements. High-quality affordable housing is an essential part of its practice.

We became a B Corporation to support the organization's good work and to align ourselves with the fine work of so many other good companies.

South Mountain Company is about collaboration. It's not about somebody, it's about everybody: the company's co-owners, employees, clients, subcontractors, suppliers, and community. We are all aware that South Mountain couldn't do what it does alone; it is dependent on the good will, great craftsmanship, and shared ideas of a large cast of characters.

The Change We Seek®

South Mountain's mission is to enrich its community and its region through its work.

• Ownership is not a requirement. Neither is it a right. It is a privilege to be enjoyed by those for whom it is appropriate and desirable. The requirements for ownership are a minimum employment of 5 years and 7500 hours of work. Ownership is inextricably tied to employment; when an employee leaves South Mountain Company he or she sells her share back to the corporation.

• The owner-employees are also the Board of directors of the company. Only employees may serve on the Board. Our governance may sound as if it is not independent, but their involvement allows the people who know the company best (the employees) to make the decisions and hold South Mountain Company accountable to the highest degree.

• The company uses a variety of "greenbuilding" strategies to help it minimize environmental impact in its buildings and landscapes. It incorporates renewable energy production (solar and wind) whenever it can. South Mountain minimizes the amount of square footage needed, sources its materials from local suppliers, seeks out recycled and sustainable materials, and incorporates many other low-impact strategies into its standard process for construction.

What makes us a better company?

B Impact Report

Certified since: 

June 2008

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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Company Highlights: 

Environment: 100% LEED certified facilities, >25% of office supplies come from recycled materials, >50% of energy comes from renewable sources, 22,000 lbs CO2 offset

Employees: 100% of employees reimbursed for continuing education, All employees paid a living wage, 100% individual/family health insurance premiums covered

Community: >50% of ownership in same community as 2/3 of workforce, >50% of employees take time off for community service, >60% of expenditures directed toward local suppliers, >50% of customers local, >10% of suppliers located in low-income communities, >10% of net profits given to charitable organizations

2014 Best for the World Overall Honoree



• John Abrams, The Company We Keep Go»
• John Abrams Keynote Address at Bioneers by the Bay 2008 Go»


• South Mountain Company Portfolio Go»


• Company History Go»
• About Martha's Vineyard Go»
• Employee Ownership Plans Go»


• John Abrams' Perspective Feature Go»
• South Mountain Company Press Page Go»
• South Mountain Company Blog 

Companies We Keep by John Abrams Go»