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Incorporated as a nonprofit in 2014, GreenWave’s mission is to train and support regenerative ocean farmers in the era of climate change. GreenWave works to replicate the regenerative ocean farming model in coastal communities throughout North America to create a blue economy—built and led by ocean farmers—that ensures we all make a living on a living planet. We believe that by working in partnership with the ocean, we can mitigate the effects of climate change and ensure that coastal communities have the tools and resources they need to be resilient in the face of climate-driven environmental, social, and economic systems shifts.
GreenWave depends on donor support to scale our programming and invest in the training, tools, and resources that regenerative ocean farmers need to succeed. In order to build a blue economy and strengthen coastal communities, farmers in GreenWave’s network need: - Value chain connections and market opportunities - Accessible and affordable processing infrastructure - Reliable, high-quality kelp seed - Hands-on training and opportunities for regional collaboration Your support helps GreenWave to meet these needs and grow a thriving, resilient ocean farming industry.
To date, GreenWave has: - Provided training and technical assistance to more than 8,500 farmers, nursery technicians, and entrepreneurs. - Distributed $1,653,399 in Kelp Climate Fund subsidies since 2021. - Supported 147 value chain connections. - Implemented new seed banking technologies, resulting in a 200% increase in regional yields in the 23/24 season. - Farms in GreenWave’s network have harvested 2,903,746 pounds of kelp to date. Recognition for GreenWave’s work includes the Buckminster Fuller Prize and the Curt Bergfors Food Planet Prize. The organization has been covered in 60 Minutes, CNN, The New Yorker, The Wall Street Journal, National Geographic, and elsewhere.
Areas Served |
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Greater New Haven |
National |
Statewide |
Since its inception in 2014, the New Haven-based GreenWave has cultivated a thriving network of active farms, working hatcheries, processing hubs, and market opportunities in southern New England. GreenWave also launched one of the largest commercial kelp nurseries in the United States. In addition to providing high-quality kelp seed at no cost to new ocean farmers in the region, we collaborate with institutional partners, including UCONN and WHOI, on research and innovations to improve kelp seed production, increase crop yields, and decrease stress on native kelp beds. While GreenWave continues to serve our local New Haven community and southern New England farmers, the organization has expanded programming in multiple regions including Alaska, California, Maine, New York, and the Pacific Northwest, with a focus on under-resourced coastal communities directly affected by climate change.
GreenWave provides pathways of entry to the kelp industry for prospective farmers, seed producers, and processors/buyers; connects emerging and active practitioners to best practices; and supports networking among practitioners to scale the regenerative ocean farming movement. The Regenerative Ocean Farming Hub is a free suite of introductory and advanced on-demand courses, interactive tools, and a collaborative Community space, designed to connect practitioners, solve technical questions, and speed innovation in the field. Through our regional cohort program, GreenWave also supports the goals of coastal communities through locally tailored training, technical assistance, and market development services that support farmers, nursery technicians, and other stakeholders across local supply chains. | |
Example of Program Success | Ken Sparta, owner of Spartan Sea Farms in Maine, transitioned from mooring and diving work to shellfish and kelp farming. Ken has contributed to GreenWave’s Training and Support programming as both a presenter and a learner. He runs educational tours of Spartan Sea Farms for kelp farmers and the public, and highlights locally grown kelp on dishes throughout the menu at his Freeport Oyster Bar. With support from GreenWave, Spartan Sea Farms will also build and manage an independent, farmer-owned kelp seed nursery that will supply regional farmers. With support from GreenWave staff and farmer mentors, the Ocean Farming Hub’s Community has become a lively virtual gathering spot, where stakeholders can connect with local collaborators, pose questions about farm and nursery design and operations, and learn about industry opportunities and events. In 2023, five users connected through the Hub, all with the same goal of starting a kelp and shellfish farm in the San Diego Bay. This connection spurred the creation of Ola Farms, a company committed to ocean conservation, restoration, and community building. |
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GreenWave’s Kelp Climate Fund (KCF) provides farmers with the resources to scale their farm infrastructure, protect against price fluctuations and extreme weather events, and measure the climate impact to build community buy-in for their farms. KCF pays farmers for the climate benefits of their farms, including blue carbon, nitrogen removal, and reef restoration. In addition, KCF builds a culture of data to ensure farmers can optimize farm management and marketing, as well as benefit from future ecosystem service markets. The GreenWave My Kelp app provides farmers with user-friendly tools to measure and track crop yields and the environmental benefits of their farms. | |
Example of Program Success | “Affording good equipment is crucial,” says Jonny. “Our first year we had to skimp on our anchors, and it bit us pretty hard.” That season, their anchors couldn’t bear the force of the tides which resulted in crop loss. Sea Quester Farms has since used KCF funds to invest in new gear, as well as kelp processing equipment. With this investment, Sea Quester Farms was able to double the amount of kelp seed they outplanted to 20,000 feet. “GreenWave is really investing in the farmers,” says Jonny. “Not only will we be able to develop a sustainable business, but we will also be able to develop an entire industry at an accelerated pace.” In Rhode Island, Azure Cygler, owner of Rhody Wild Sea Gardens, secured additional funding by utilizing seasonal data she collects as a Kelp Climate Fund participant. Along with other KCF farmers, she uses GreenWave’s My Kelp app to measure and track outplanting conditions, growth rates, crop yields, and the environmental benefits of her farm. By demonstrating the quantifiable environmental benefits of kelp farming with My Kelp’s reports, Rhody Wild Sea Gardens received a grant through the Natural Resources Conservation Service (NRCS) to develop standardized conservation practices for kelp farming in Rhode Island. Once these standards are finalized, other Rhode Island kelp farmers can apply for NRCS funding to be compensated for the environmental benefits of their farms. |
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GreenWave works up and down the value chain to identify barriers and ensure viable markets and fair pricing for farmers. GreenWave’s Seaweed Source connects farmers with buyers, and supports farmers and prospective buyers with value chain coordination, processing, and logistics planning in food, agriculture, and bioplastics, as well as other emerging markets for kelp. In addition to the online tool, GreenWave’s team provides one-on-one support to foster market connections. | |
Example of Program Success | Year to date, the team has supported 147 value chain connections, including farmer and buyer connections made through our pilot sample program. |
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Our Farmer Infrastructure team tests promising farm, seed production, and processing technologies, with a focus on driving down development and ownership costs. We share our findings back out to the field, provide training and technical assistance to the farming community to advance their work, and secure resources to build regional infrastructure. | |
Example of Program Success | In Casco Bay, Maine, the Maine Family Seafarm Cooperative built a kelp seed nursery from the ground up with hands-on support from the GreenWave team. This past season, Nicole Potter, Farm Manager at Spartan Sea Farms, led the nursery, producing seed for their kelp lines and for five other farms in the state. They replicated GreenWave’s nursery model to address critical seed quality challenges in the region—an important step toward ensuring reliable local supply and scaling production across Casco Bay. “I’ve never felt more proud or more accomplished than the first time we saw seed on the line,” Nicole says. |
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CEO First Name | CEO Last Name | CEO Email |
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Bren | Smith | bren@greenwave.org |
Emily | Stengel | emily@greenwave.org |
Number of Full-Time Staff | 20 |
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Number of Part-Time Staff | 0 |
Number of Volunteers | 0 |
Number of Contract Staff | 9 |
American Indian or Alaskan Native | 0 |
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Asian | 1 |
Black or African American | 1 |
Middle Eastern or North African | 0 |
Mixed | 0 |
Native Hawaiian or other Pacific Islander | 0 |
White | 18 |
Other | 0 |
Choose Not to Answer | 0 |
Hispanic or Latino/a/x | 2 |
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Not Hispanic or Latino/a/x | 18 |
Choose Not to Answer | 0 |
Male | 4 |
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Female | 16 |
I am: (Fill In Below) | n/a |
Choose Not to Answer | 0 |
Board Chair First Name | Board Chair Last Name | Board Chair Email Address | Board Chair Term Start Date | Board Chair Term End Date |
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Karen | Simons | KSimons@hudsonvarick.com | March 1, 2021 | March 1, 2026 |
Board Member First Name | Board Member Last Name | Board Member Affiliation |
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Lisa | Holmes | Martha G. Moore Foundation |
Dr. Ayana | Johnson | Ocean Collectiv; Urban Ocean Lab |
Bren | Smith | GreenWave; Thimble Island Oysters |
T. Morgan | Dixon | GirlTrek |
Curt | Ellis | FoodCorps |
Kevin | Irby | Funders for Regenerative Agriculture |
Travis | Forgues | Hidden Springs Creamery |
Current List of Board Members as of | July 31, 2025 |
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American Indian or Alaskan Native | 0 |
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Asian | 0 |
Black or African American | 1 |
Middle Eastern or North African | 0 |
Mixed | 1 |
Native Hawaiian or other Pacific Islander | 0 |
Other | 0 |
White | 6 |
Choose Not to Answer | 0 |
Hispanic or Latino/a/x | 0 |
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Not Hispanic or Latino/a/x | 6 |
Choose Not to Answer | 2 |
Male | 4 |
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Female | 4 |
I am: (Fill In Below) | N/A |
Choose Not to Answer | 0 |
Additional Comments (Optional) |
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Fiscal Year Start Date | Fiscal Year End Date | Projected Revenue | Projected Expenses |
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July 1, 2025 | June 30, 2026 | $9,192,884 | $9,192,884 |
Fiscal Year | 2024 | 2023 | 2022 |
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Total Revenue | $7,667,756 | $6,996,296 | $6,204,839 |
Total Expenses | $5,411,634 | $5,197,908 | $2,763,614 |
2022 990 Tax Form | Download |
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2023 990 Tax Form | Download |
2024 990 Tax Form | Download |
2025 990 Tax Form |
Financial Statements | Download |
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Financial Documentation Year | 2023 |
Financial Documentation Type | Audited Financial Statements |
Financial Statements | |
Financial Documentation Year | -- |
Financial Documentation Type | -- |
Financial Statements | Download |
Financial Documentation Year | 2024 |
Financial Documentation Type | Audited Financial Statements |
Federal EIN Number | 47-5438012 |
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Organization's type of tax exempt status | 501c3nonprofit |
Website | http://www.greenwave.org |
https://www.facebook.com/GreenWaveOrg/ | |
https://twitter.com/GreenWaveOrg |
Regenerative ocean farming—a zero-input, small-footprint, polyculture model that grows a mix of native seaweed and shellfish species—absorbs carbon and nitrogen, rebuilds marine ecosystems, feeds the planet, and creates viable and sustainable economic activity in coastal communities hard hit by climate change. GreenWave works to replicate the regenerative ocean farming model in coastal communities throughout North America to create a blue economy—built and led by ocean farmers—that ensures we all make a living on a living planet. We believe that by working in partnership with the ocean, we can mitigate the effects of climate change and ensure that coastal communities have the tools and resources they need to be resilient in the face of climate-driven environmental, social, and economic systems shifts.
315 Front Street
New Haven, Connecticut 06513
Amy Blankstein
amy@greenwave.org
Phone: 7187815093
http://www.greenwave.org
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