Power the Source-to-Sea Movement
2026 is Funded! Thanks to early seed supporters, our pilot season on the R/V HMS Buttercup is fully secured.
Every gift today directly funds our 2027 Launch, scaling our citizen science academy and deploying the HMS ‘Ghost‘—our water-sampling drone.
| Level | Impact Target |
| $35 | Field Supplies: Funds shoreline reagent kits & water-sampling testing packs for local volunteers. |
| $100 | Steward Accreditation: Covers full curriculum, field training, and academy materials for one citizen scientist. |
| $250 | Sensor Deployment: Direct support for hardware engineering, lab validation, and 10-foot vertical column mapping on the HMS ‘Ghost’. |
| Custom Amount | General Operations & Rapid Response: Flexible funding deployed directly where needed most—covering laboratory testing fees, vessel maintenance, and field operations. |
Double Your Impact: Employer Matching
Many companies match charitable contributions made by their employees. Check your HR portal or workplace giving program to see if your gift to Headwaters & Marine Stewards® can be doubled.
- Registered Platforms: Benevity & Goodstack
- Tax ID (EIN): 41-2696973
- Documentation: Download Signed W-9 Form (PDF)
Major Gifts & Fleet Sponsorships
Looking to make a transformational gift ($1,000+) or co-sponsor our hardware build?
We offer multi-tier logo and naming recognition across the hull, sensor pods, and field equipment of the HMS ‘Ghost’ water-sampling drone.
Contact David via email to set up a call, video chat, or an in-person meeting over lunch or coffee.
Prefer to give by mail?
100% of your gift goes directly to the water (no processing fees).
Please make checks payable to Headwaters & Marine Stewards and mail to:
Headwaters & Marine Stewards
24 Sheffield Rd
Portsmouth, NH 03801-4838
Headwaters & Marine Stewards® is a registered 501(c)(3) nonprofit organization. All donations are tax-deductible to the fullest extent of the law. EIN: 41-2696973.