Compost Referral List

Here are some of the composts/worm castings that we have tested here in our lab. You can use the search bar along the right-hand side of the screen to filter by any search term you wish. For example, you can type in “Luis” or “Santa Fe” or “Vermicast.” We hope that these contacts below can help to provide you with some high quality compost material, that is also local to you! 

Name Company City State Phone Contact Information
Tagle, Guillermo Biofiltro Davis WA, CA (978) 344-3233
Lourie, Donald Coville Compost Springdale AR
Morse, Michael Inch By Inch LLC Tucson AZ (520) 245-5273
Hyde, Adam Broadfork Farm Troutdale WA (509) 237-0034
Allen, Andy SD Microbes Ramona CA (619) 540-8831
Covington, Chase Nor-Cal Vermi Dixon CA
Alexander, Nathan & Lewis, Mike Synergy Agricultural Products, LLC Santa Rosa CA (707) 535-0599 Compost Tea Brewing Equipment, CDFA OIM Certified Biologically Complete Compost, Compost Tea and Soil Amendments
Green, Dave Agromin Oxnard, Orange County, Sacramento CA (805) 485-9200 For General Sales, Jazmine Figueroa and Alex Sanchez For Commercial Landscaping and Bulk Sales, Chris Kennedy,
Harton, Paul Vital Garden Supply Nevada City CA (530) 277-6729 204 Gold Flat Ct. Nevada City, CA 95959 or
Kennedy, Lorrane Catalyst Unlimited Inc Carlotta CA (707) 601-7143 or (717) 480-7481 Call first - small quantity - no storefront
King, Patrick The Soil King Cloverdale CA
Lowther, Danielle Recology - Jepson Prairie Organics Vacaville CA
Mileck, Martin Cold Creek Compost Ukiah CA (707) 489-4821 or Carri Beaver at (707) 485-5966 I am happy to answer questions concerning feedstocks, products or operations. For purchasing and deliveries, customers would be better served if they called the office and ask for Carri Beaver or send a note to
Morrison, Leighton Kingdom Aquaponics Oxnard CA
Muran, Patrick Niner Wine Estates Paso Robles CA
Rivera, Victor Clean Dirt San Francisco CA (415) 583-1519 OMRI certification available upon request
Skinner, John Johns Farm Stand Watsonville CA
Stoltz, Heidi Stoltz Cattle Company Arvada WY (307) 736-2602
Wilson, Rick Agromin Oxnard CA,
Mautz, Kirt 3X Grinding and Compost LLC Olathe CO
West, Dave Fungal Link (575) 770-8841 (Sample Olest Static Pile (SHS))
Oviatt, Nora Colorado Mesa University Compost Facility Grand Junction CO
Demers, Jeff New England Compost LLC Bethel CT
Hammer, Nichole Pearl Valley Farms Pearl City IL (859) 991-0828 Contact: Aaron Goy, Eco Agronomist
Flowers, Samantha Meme's Worms Lakeland GA
Giuliano, Justin Rosy Soil Atlanta GA
Shivvers, Steve Midwest Soil Restore Prole IA (515) 468-3923 We offer free high fungal diversity compost, Johnson-Su methodology, to first time users who would like to do control trials in their gardens/farms/ranches/orchards/lawns. Larger quantities for sale.
Rader, Wes N/A Fort Wayne IN
Valecourt, Ohryn MAM Mid Atlantic Microbials Centreville MD (703) 203-7120
Chen, Luis Wormies Vermicompost Grand Rapids MI (616) 322-1677 Instagram: @wormiesgr
Warsen, Elana Michigan Worm Works Manistee MI (734) 276-5899
Larson, Mike Brut Worms Farms Inc Brooten MN (952) 239-1819
Troendle, Pat Full Circle Nutrition LLC/Diamond t Ag Lanesboron MN
Charter, Stephen Charter Ranch Shepherd MT
Johnson, Karl Yes Compost LLC Bozeman MT
Batchelder, Matt Fun-Guy Compost Santa Fe NM
Karim, Muhammad Queens Botanical Garden Flushing NY Contact Chelsea at or Muhammad at The compost we distribute is free for New York City residents, generally, we deliver February-April.
McMaster, Bruce McMaster Bros Inc East Hampton NY (631) 745-4507
Richmond, Bill Adirondack Worm Farm Hudson Falls NY (518) 615-4696 Offers Curbside delivery services
Scollo, Gaetano Northeast Worms Rochester NY (585) 397-4346
Boyer, David Sea Coast Compost Charleston OR
Culin, Carly The Good Earth Organics LLC Cave Junction, Grants Pass OR (541) 592-4855 ext 102
Tim Bielenger N/A Aumsville OR (503) 932-2059
Lininger, Elena HealTerra Roseburg OR (541) 580-5655
Westlund, AJ Ground Up Soil Scio OR (503) 910-0221
Schauer, Jim Prairie Ridge Farms Leola SD (605) 380-6257
Vu, Morris Greenfield Legacy Farms LLC Greenfield TN (972) 345-9454 text OK Product name: Green Bird Organic & Natural Chicken Manure Compost Certifications: OMRI-Listed Facebook: Website:
Giesbrecht, Craig N/A Farwell TX (806) 946-9194
Hileman, Grant Triple S Compost Conroe TX (963) 444-7753
James, Chip Brothers Worm Farm Austin TX (678) 612-8247
Mezger, Eric Whittlesey Landscape Supplies Austin TX
Paine, Jeff Break It Down LLC Austin TX
Wilson, Daniel Farm Dirt Compost Houston TX (281) 552-8119
Bocook, David Mountain Gate Organics LLC Rockingham VA
Gilbert, Tom Black Dirt Farm Stannard VT (802) 533-7033
Davis, Russ Organix Walla Walla WA (509) 200-1160
Fleming, Nate Dirt Hugger Dallesport WA (541) 946-3478 x705
Arbucias, Anthony Lush Farms LLC Watertown WI (414) 315-1285
Martwick, Tom N/A Phillips WI (715) 339-4257
Denison, Chris Country Roots Newago MI (231) 452-6430
Jason Hines Cascade Agronomics Moses Lake, WA, Hermiston, OR, and Nyssa, OR WA (509) 764-7000 Products: Screened steer manure, chicken compost, pellets
Fang, Lynn BVCG Pomona CA (650) 743-5731
Black, Tyler N/A Tulsa OK (918) 804-1605
Robbins, Rocky Florida Soil Builders Immokalee FL (239) 229-2155
Llorente, Yacob Gomez N/A New York NY (347) 281-0767,