Why Choose Green Century

Our three-pronged approach offers investors the opportunity to make an impact through the power of their investments in a way no other socially responsible and sustainable mutual fund family can.


1. Investing in Sustainable Companies

Green Century uses the following strategies to offer investments in sustainable companies while pursuing competitive returns:

  • Environmental, Social and Governance (ESG) performance ratings. Green Century chooses companies with the highest ESG ratings in their sector.  Investing using ESG ratings has been shown to reduce risk and offer financial advantages.
  • Controversy Exclusions. Green Century also uses ESG controversy ratings to avoid companies that have current or projected reputational risks or are not following international norms and principles.
  • Value-Based, Socially Responsible (SRI) and Exclusionary Screens. To offer investors a way to invest with their values, our Funds avoid dangerous and harmful industries including fossil fuels, civilian weapons, military weapons, tobacco, producers of GMOs (Genetically Modified Organisms), and nuclear energy.
  • Fossil Fuel Free Commitment. Green Century is the first family of diversified and responsible fossil fuel free mutual funds. The exclusion of coal, oil, and gas exploration, extraction, refining, processing and transportation are detailed in our prospectus.

Green Century uses three investment strategies – ESG, Value-Based SRI Exclusionary Screens and Fossil Fuel Company exclusions on our equity and fixed income – to provide investors with deeply green and sustainable investments.

Green Century also uses the full array of shareholder advocacy tools, including filing shareholder resolutions, and supports our non-profit environmental advocacy owners to make an impact you can measure.

Green Century offers three mutual funds:

  • The Green Century MSCI International Index Fund invests in the stocks of foreign companies selected for their outstanding environmental, social and governance performance.
  • The Green Century Equity Fund invests in the stocks of the companies included in the longest-running socially responsible index customized to exclude any fossil fuel companies in the index.
  • The Green Century Balanced Fund invests in the stocks and bonds of environmentally responsible companies as well as green bonds, which finance climate mitigation projects worldwide.

Sample Holdings:

Tesla Motors*


Tesla builds not only all-electric vehicles but also scalable clean energy generation and storage products to fulfill its mission to “accelerate the world’s transition to sustainable energy.” The company’s commitment exemplifies a sustainable and forward thinking company that Green Century seeks to include in our Funds. Tesla is a current holding in the Green Century Equity Fund.

Vestas Wind Systems*

The Luz Del Norte solar installation project is supported by a bond issued by the Overseas Private Investment Corporation (OPIC)* and held by the Fund

Vestas Wind Systems is the only global energy company dedicated exclusively to wind energy, and with installations in over 70 countries, its turbines account for 20% of global wind energy production. Vestas, headquartered in Denmark, is a current holding in the Green Century MSCI International Index Fund.

Starbucks Sustainability Bond*


With its inaugural sustainability bond, Starbucks is improving its supply chain’s environmental and social impact. One program supports coffee farmers who commit to promote long term productivity by keeping the soil healthy, conserving water and growing shade trees to protect wildlife. The Starbucks bond is a current holding in the Green Century Balanced Fund, which has over 60% of its fixed income portion in green or sustainability bonds.


Fossil Fuel Free Investing:

Green Century is proud to be the first family of responsible and diversified fossil fuel free mutual funds in the U.S.



What About the Performance of Fossil Fuel Free Investing?

There is a growing body of evidence that demonstrates the investing fossil fuel free may protect investors from:

  • volatility of oil prices
  • capital expenditures on high-cost projects such as off-shore and Arctic drilling
  • devalued or stranded carbon reserve assets.

These concerns are just some of the reasons why Green Century has a long-standing investment strategy of avoiding the worst polluting companies and instead seeking to invest in companies that are helping build a sustainable economy.

To review a recent study on performance by leading industry analysts, please review:

Advisor Partners: Fossil Fuel Divestment: Perspectives After the Oil Bust

MSCI: Responding to the Call for Fossil Free Portfolios


Our Definition of Fossil Fuel Free: 

Our definition of fossil fuel free investing excludes companies that explore for, extract, process, refine, and transmit coal, oil and gas, as well as companies that burn fossil fuels to make electricity or any companies with carbon reserves.

Our fossil fuel free commitment exceeds the global divestment campaign baseline of avoiding the largest 200 global fossil fuel companies as ranked by the potential carbon emissions content of their reported reserves and is detailed in our prospectus.


Important Distinctions Between Approaches: 

As more investments are marketed as “low carbon” or “climate change solutions,” keep these points in mind:

    • “Low carbon” is not the same as fossil fuel free. Low carbon investments might invest in coal, oil or gas companies; these portfolios might evaluate carbon emissions, carbon reserves, or the overall carbon footprint of an investment but may also still invest in the companies most responsible for climate change.
    • Review the prospectus. Any binding exclusion, such as avoiding fossil fuel companies, should be spelled out in the prospectus. You can review the prospectus of the Green Century Funds by clicking here.
    • Only portfolios with zero or “0.00%” in the energy sector would be consistent with fossil fuel free investments. Download our Guide below in Resources for additional guidance.







Resources to Download:

Guide Cover Divestment Shortcomings



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Questions?  1-800-934-7336 |


*As of March 31, 2018, Tesla Motors, Inc., Vestas Wind Systems and Starbucks Corporation comprised 0.00%, 0.34%, and 0.00%; 0.00%, 0.00% and 0.39%; and 2.03%, 0.79% and 0.00% of the Green Century Balanced Fund, the Green Century Equity Fund and the Green Century International Index Fund. References to specific securities, which will change due to ongoing management of the Funds, should not be construed as a recommendation by the Funds, their administrator, or their distributor.

2. Leading an Award-Winning Shareholder Advocacy Program

Even companies that lead in sustainability have room for improvement. Green Century works with dozens of companies every year to adopt stronger environmental practices and policies throughout their supply chains. This advocacy is a key way that investing in Green Century makes a difference.

We make measurable impact by directly engaging companies across the globe on the issues that matter most to our investors. Our in-depth approach goes well beyond voting proxies to include shareholder resolutions, dialogues and stakeholder collaborations, providing a way for our investors to leverage their investments to create a more sustainable economy and world.

Climate change Sustainable agriculture
Preserve tropical forests Keep antibiotics effective
Promote plant-based protein Protect pollinators and our food supply
Reduce food waste Protect ocean health
Promote renewable energy Water stewardship

See our 2016 engagements.

Featured Campaign: Tropical Forest Protection

Green Century is working to curb climate change, prevent loss of habitat for endangered species, and mitigate potential financial risks for investors by making agricultural product supply chains more sustainable.

Deforestation accounts for more than 10% of global greenhouse gas emissions and contributes to endangered species habitat destruction, human rights violations, and water cycle disruption. Agriculture is the leading driver of deforestation, accounting for about 70% of tropical deforestation.

To help curb climate change and mitigate risks, Green Century has launched a five-year campaign to help stop deforestation caused by the production of soy, cattle, timber, rubber, and palm oil in Asia, Latin America, and Africa.

In addition to other successes, the campaign has helped secure a zero-deforestation commitment from Wilmar,* the world’s largest palm oil trader, that will avoid 1.5 gigatons of carbon pollution between 2015 and 2020.

To learn more about the successes of our Tropical Forest Protection campaign, download our two-pager below or visit our Tropical Forest Protection page.

Resources to Download:

Sustainable Ag_Sep 2016 - UMB Approved-page-001

Proxy Voting Policies and Records:

See how the Green Century Funds voted on social, environmental and governance issues at the annual meetings of the companies they own.



Open Account





Request Materials





Download Account and Investing Forms



Questions?  1-800-934-7336 |


*As of March 31, 2018, no securities mentioned were held in the portfolios of any of the Green Century Funds. References to specific securities, which will change due to ongoing management of the Funds, should not be construed as a recommendation by the Funds, their administrator, or their distributor.

3. Supporting Environmental and Public Health Non-Profits

One-hundred percent of the profits earned managing the Green Century Funds are used to support the environmental and public health work of non-profit organizations.

The organizations which founded and own Green Century Capital Management are: California Public Interest Research Group (CALPIRG), Citizen Lobby of New Jersey (NJPIRG), Colorado Public Interest Research Group (COPIRG), ConnPIRG Citizen Lobby, Fund for the Public Interest, Massachusetts Public Interest Research Group (MASSPIRG), MOPIRG Citizen Organization, PIRGIM Public Interest Lobby, and Washington State Public Interest Research Group (WASHPIRG).

Currently, our non-profit owners are working toward ending the overuse of antibiotics on factory farms, banning fracking, and securing carbon pollution regulations. And, to date, these organizations have accomplished incredible success, including:

    • Helping support a proposition that upheld a statewide ban on plastic bags in California
    • Gaining permanent protection of natural and archaeological wonders by creating three national monuments in California, Nevada and Texas
    • Securing protection for thousands of rivers and drinking supply sources across the country
    • Expanding solar energy through the Million Solar Roofs Initiative in California, influencing Massachusetts’ policy to power 50,000 homes with solar energy and securing pro-solar policies in Arizona, Colorado, New Mexico, Minnesota, New Jersey and North Carolina

To learn more about our support of environmental and public health non-profits, please email us at or call 1-800-934-7336.