GreenWave Organization Corp is a public charity based in New Haven, Connecticut. It works to replicate and scale regenerative ocean farming in coastal communities, supporting ocean farmers through training, climate subsidies, and market and infrastructure development.
Key facts about Greenwave Organization Corp
In short: Greenwave Organization Corp gave $399K across 26 grants in 2025 (avg $15K), top state Maine. Source: 2025 IRS Form 990.
- EIN
- 47-5438012
- Latest 990 filing
- Form 990, 2025
- Annual giving (2025)
- $398,966
- Grants made (2025)
- 26
- Average grant
- $15,345
- Median grant
- $12,500
- Total assets
- $14,124,225
- Primary geography
- Maine (27% of itemized 2025 grant dollars)
- How to apply
- For the Value Chain Development Grant, teams submit a pre-proposal describing the team and project idea. Full details ↓
Data from IRS Form 990, 2025; updated October 2026. Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Financial Overview
From 2025 IRS Form 990 · View filing
Total Assets
$14.1M
+30.8% YoY
Annual Giving
$399K
+12.4% YoY
Grant Count
26
+18.2% YoY
Avg Grant Size
$15K
-4.9% YoY
How Greenwave Organization Corp gives
Estimate from itemized grant lists in IRS Form 990 filings (2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Mission & Focus Areas
GreenWave’s stated mission is to develop and implement education programs in ocean restoration, ocean farming, climate change, and sustainable food sources. The organization says it works with farmers to identify barriers to growth, develop solutions, and share best practices.
Its Kelp Climate Fund provides subsidies to ocean farmers for a bundle of climate impacts, including carbon and nitrogen removal and reef restoration. The Value Chain Development Grant supports teams working to address bottlenecks, improve infrastructure, and increase efficiency across regional kelp value chains.
Grantmaking
In filing year 2025, GreenWave reported 26 grants totaling $398,966. Grant amounts ranged from $5,250 to $28,619, with a median of $12,500. The largest listed payments were $28,619 to Casco Bay Mooring and $25,000 each to Alaska Ocean Farms, Albatross Fisheries LLC, Cascadia Seaweed, Kelp Island Alaska, Wild Ocean Aquaculture LLC, Great Ledge Cove Seafood, and Sea Forest Macro Algae United Kelp Cooperative. The stated purpose for these payments was to recognize ocean farmers for a bundle of climate impacts, including carbon and nitrogen removal, reef restoration, and green jobs.
GreenWave’s website describes the Kelp Climate Fund as a subsidy program for ocean farmers. Its updated structure offers a fall seed subsidy of $1 per foot of seed string outplanted, up to $10,000, and a spring sales and stabilization bonus of $1 per pound of kelp sold or stabilized, up to $15,000. The website says farmers can earn up to $25,000 per year through the program.
GreenWave also offers a Value Chain Development Grant. For the 2026–2027 cycle, the website says proposals opened September 1, 2026, and are reviewed on a rolling basis. Teams must include at least two partners and a buyer, or documentation of intent to purchase kelp. Eligible uses include infrastructure, operating expenses, and pilot collaborations. Funded teams must provide partner commitments, a collaboration plan, progress and final reports, a proposal with objectives, timeline, implementation steps and success metrics, a market plan or potential-buyer correspondence, and a budget with a proposed payment timeline.
How to Apply
For the Value Chain Development Grant, teams submit a pre-proposal describing the team and project idea. Invited teams submit a full proposal; selected projects receive contracts and onboarding support.
Open Grants
2 open opportunities from Greenwave Organization Corp
Ready to take the next step with Greenwave Organization Corp?
Geographic Focus
Where this funder awards grants
GreenWave describes its work as supporting ocean farmers and coastal communities across North America. Its website says the Kelp Climate Fund aggregates farm monitoring data across North America. The 2025 filing’s listed grant recipients include organizations in Maine, Alaska, and Rhode Island, as well as recipients with no location provided.
Grant Distribution by State
Share of 2025 grant dollars across all 26 itemized grants.
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2022 to 2025, annual grant giving ranged from $136K (2022) to $621K (2023). In 2025 it made 26 grants totaling $399K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Casco Bay Mooring ($29K). Together the top 10 received $243K.
Grant Size Distribution
57 grants across all recorded years
The most common grant size was under $50K: 54 grants of 57 (95%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Casco Bay Mooring Yarmouth, ME | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $28,619 |
| Alaska Ocean Farms Kodiak, AK | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $25,000 |
| Albatross Fisheries LLC Tenants Harbor, ME | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $25,000 |
| Cascadia Seaweed | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $25,000 |
| Kelp Island Alaska Kodiak, AK | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $25,000 |
| Wild Ocean Aquaculture LLC Portland, ME | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $25,000 |
| Great Ledge Cove Seafood | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $25,000 |
| Sea Forest Macro Algae United Kelp Cooperative | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $25,000 |
| Salt Water Farms North Kingstown, RI | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $20,000 |
| West Coast Kelp | Direct payment to ocean farmer in recognition of a bundle of climate impacts that include carbon and nitrogen removal, reef restoration, and green jobs | $19,723 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Assets | Revenue | Expenses | Grants reported |
|---|---|---|---|---|
| 2025 | $14,124,225 | $9,170,197 | $6,561,623 | $398,966 |
| 2024 | $10,798,565 | $7,667,756 | $5,411,634 | $354,804 |
| 2023 | $8,672,214 | $6,996,296 | $5,197,908 | $621,306 |
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $14,124,225 | $10,798,565 | $8,672,214 |
| Revenue | $9,170,197 | $7,667,756 | $6,996,296 |
| Expenses | $6,561,623 | $5,411,634 | $5,197,908 |
| Net Investment Income | $253,536 | $235,088 | $80,386 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2022 (received by the IRS March 3, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS May 7, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS May 12, 2025)
- Updated Form 990 for fiscal year 2025 (received by the IRS February 13, 2026)
- IRS filings on file for fiscal years 2021–2025
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Karen Simons as chair and treasurer; Lisa Holmes as secretary; Curt Ellis, Ayana Johnson, Morgan Dixon, Kevin Irby, and Travis Forgues as directors; and Brendan Smith and Emily Stengel as co-executive directors.
Greenwave Organization Corp is led by Brendan Smith, Co-Executive Director on every filing since 2021; 2 of 9 officers listed in 2025 are compensated.
Officers on the 2025 filing
Brendan Smith
Co-Executive Director
On filings since 2021
40 hrs/week
$125K (2021) → $168K (2025)
Emily Stengel
Co-Executive Director
On filings since 2021
40 hrs/week
$101K (2021) → $176K (2025)
Karen Simons
Chair & Treasurer
On filings since 2021
0.5 hrs/week
No compensation reported
Ayana Johnson
Director
On filings since 2021
0.3 hrs/week
No compensation reported
Curt Ellis
Director
On filings since 2021
0.3 hrs/week
No compensation reported
Morgan Dixon
Director
On filings since 2021
0.3 hrs/week
No compensation reported
Kevin Irby
Director
On filings since 2024
0.3 hrs/week
No compensation reported
Travis Forgues
Director
On filings since 2024
0.3 hrs/week
No compensation reported
Lisa Holmes
Secretary
On filings since 2021
0.3 hrs/week
No compensation reported
Former officers (7)
- Former: Dune Lankard (2021–2023) — Director
- Former: Amy Blankstein (2023) — Director of Development
- Former: Julia Whistler (2023) — Senior Platform Product Manager
- Former: Kendall Barbery (2023) — Director of Partnerships & Program Development
- Former: Lindsay Olsen (2023) — Farmer Training Program Director
- Former: Sam Garwin (2023) — Infrastructure Director
- Former: Toby Sheppard-Bloch (2023) — Infrastructure Director
Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $176K, to Emily Stengel (Co-Executive Director). 2 officers or directors reported compensation on that filing.
Contact
Mailing address: 315 Front Street, New Haven, CT 06513
Phone: (203) 680-0365
Website: https://greenwave.org
Frequently asked questions about Greenwave Organization Corp
How much does Greenwave Organization Corp give each year?
Greenwave Organization Corp gave $399K across 26 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $355K across 22 grants.
What is Greenwave Organization Corp's typical grant size?
Greenwave Organization Corp's median grant in 2025 was $12,500, and its average grant was $15,345, across 26 grants on its 2025 IRS Form 990.
Where does Greenwave Organization Corp give grants?
Greenwave Organization Corp's top state is Maine, with 27% of the grant dollars itemized on its 2025 IRS Form 990. The next largest states were Alaska (25%) and Rhode Island (5%). The most frequent recipient cities were Kodiak, AK (4 grants).
Does Greenwave Organization Corp give general operating support?
Not in 2025: none of the 26 grants with a stated purpose on Greenwave Organization Corp's 2025 IRS Form 990 were described as general or operating support.
Who are Greenwave Organization Corp's largest grantees?
Greenwave Organization Corp's largest 2025 grantees include Casco Bay Mooring ($28,619), Alaska Ocean Farms ($25,000) and Albatross Fisheries LLC ($25,000), according to its 2025 IRS Form 990. Together they received 20% of its itemized 2025 grant dollars.
How large is Greenwave Organization Corp?
Greenwave Organization Corp reported $14.1M in total assets on its 2025 IRS Form 990. Its revenue that year was $9.2M.
What does Greenwave Organization Corp fund?
GreenWave’s stated mission is to develop and implement education programs in ocean restoration, ocean farming, climate change, and sustainable food sources. The organization says it works with farmers to identify barriers to growth, develop solutions, and share best practices. See mission & focus areas ↑
How do I apply for a grant from Greenwave Organization Corp?
For the Value Chain Development Grant, teams submit a pre-proposal describing the team and project idea. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Greenwave Organization Corp's EIN?
Greenwave Organization Corp's EIN (Employer Identification Number) is 47-5438012. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated October 2026. Sourced from IRS Form 990 filings. Research dossier generated October 2026.
Here's the math on researching Greenwave Organization Corp by hand.
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