Who are the best seed breeders?

As the cannabis industry rapidly expands, the most reputable cannabis seed breeders are contributing to cannabis genetics in powerful ways. Dig deep into it with this list of cannabis seed breeders and genetics companies curated for curious commercial growers and home growers. These seed breeders and genetics specialists put out all kinds of seeds: regular seeds, feminized seeds, auto-flower seeds and bulk seed options. For example, Brothers Grimm Seeds specializes in bulk cannabis seeds for large commercial cannabis farms. 

Recently the cannabis industry lost some of the best cannabis breeders of the modern age, both SubCool and Josey Wales. These iconic cannabis breeders made significant contributions to the cannabis industry. SubCool is the famed creator of Jack The Ripper and Josie Wales created GG4 (formerly Gorilla Glue #4). 

There are no perfect top lists or best of lists, but hopefully you’ll learn something new with ours. If you like this list, share it with other cannabis growers who want to be informed about cannabis breeding, seed breeders and genetics. This list does not vouch guarantee you’ll be able to locate everyone included. Many of them are accessible to the general public, however some breeders and companies are not, or their online presence is sparse. Most of the cannabis seed breeders and genetics companies listed sell seeds, however they may not be easily accessible.

For fast and reliable customer service for seed packs or bulk seeds, Brothers Grimm Seeds delivers on all accounts. Brothers Grimm Seeds recently released Space Queen XX and Grimm Glue XX, both of which are only available as feminized seeds. Plus they offer feminized seeds of Cindy 99, Durban Thai x Cindy 99, Pineapple, Rosetta Stone, Apollo, Apollo Haze, G13 Genius, Princess Haze, and more. 


List of the best seed breeders and genetics companies

  1. Brothers Grimm Seeds
  2. Grandiflora Genetics
  3. Green Bodhi
  4. Jungle Boys
  5. Sirius Seeds
  6. Super Sativa Seed Club
  7. Covert Genetics
  8. Envy Genetics
  9. Relic Seeds
  10. Subcool Seeds (RIP)
  11. Top Dawg Seeds
  12. Thug Pug Genetics
  13. Alien Genetics
  14. Humboldt Seed Company
  15. Humboldt Seed Organization
  16. Humboldt Exotics
  17. CSI Humboldt
  18. Mephisto Genetics (Auto-flowers)
  19. Ethos Genetics
  20. Romulan Genetics
  21. Soma Seeds
  22. Purple City Genetics
  23. Capulator
  24. AG Seed Co.
  25. Josey Wales (RIP)
  26. Compound Genetics
  27. Shantibaba
  28. Oceangrown Seeds
  29. Lumpy
  30. Purple Caper
  31. Top Horticultural Concepts
  32. Ghost Grow
  33. Dynasty Genetics
  34. Symbiotic
  35. DNA Genetics
  36. DJ Short
  37. Mr. Nice
  38. Dr. Kripling
  39. Dark Horse Genetics
  40. Kyle Kushman


It is recommended that you contact genetics companies and seed breeders directly to procure seeds, genetics, etc. Also, never try to purchase seeds on Facebook or Instagram.

If you are a farm or dispensary looking for a nursery in California who carries nursery products representing several of the above breeders, contact Marc Eden with Dark Heart Nursery at mden@darkheartnursery.com. Dark Heart Nursery has been coalescing relationships with cannabis breeders for over a decade to offer their genetics in clone, seedling, and tissue culture form.


This list was compiled in December 2021. Updated 1/1/2022. Bookmark this page for updates.