Oklahoma Crop Improvement Approved Conditioners
All certified seed which is conditioned must be conditioned by the grower or one of the Approved Conditioners listed below. If the seed is conditioned by a firm other than an Approved Conditioner, it will automatically lose its rating as certified seed. View the contacts below for approved conditioners.
P - Portable Cleaner
B - Bulk Facility
| Name | Portable Cleaner / Bulk Facility | Address | Phone | Cell Phone |
|---|---|---|---|---|
| 6-S Enterprises LLC | P | 11578 Hwy 58 Ringwood, OK 73768 | (580) 227-0487 | (580) 227-0487 |
| Adam Seed Cleaning | P | 71010 N 2600 RD Hitchcock, OK 73744 | (580) 822-1522 | (580) 822-1522 |
| Amerin Seed Conditioning | P | 15365 Road 4 Uberal, KS 67901-6122 | (620) 626-7905 | - |
| Apache Seed & Supply LLC | - | 17050 Cr 1450 Apache, OK 73006 | (580) 588-3606 | (940) 781-1087 |
| Blue Chip | B | 23863 East 890 Road Thomas, OK 73669-8230 | (580) 661-2468 | (580) 816-0688 |
| Braun Seed | B | 14408 N 2160 Rd Hobart, OK 73651-1609 | - | (580) 530-0530 |
| Bewer Farms | B | 83840 N 2540 Road Watonga, OK 73772-1037 | (580) 623-4633 | (405) 358-8833 |
| C.V. Ledbetter | B | 17843 Prairie Bell Rd Okmulgee, OK 74447-6667 | (918) 756-6648 | (918) 758-8552 |
| Cassidy Grain Co. | - | PO Box 983 Frederick, OK 73542-0983 | (580) 335-2104 | (580) 335-1101 |
| Caudill Seed Co. | - | 111 N Main Granite, OK 73547 | (580) 535-2117 | (606) 356-2817 |
| Caughlin Seed | B | 14201 S P ST Tonkawa, OK 74653-4451 | (580) 761-6936 | (580) 761-6936 |
| CHS | B | 1000 Victory Lane Kingfisher, OK 73750 | (405) 384-6079 | (405) 368-2248 |
| CHS, Frederick | B | PO Box 929 Fredrick, OK 73542-0929 | (580) 335-2107 | - |
| Crossley Seed Cleaning | P | 5680 NW Expressway Okarche, OK 73762 | (405) 826-9917 | (405) 826-9917 |
| Diamond K Seed | B | 4800 Country Rd 110 Red Rock, OK 74651-0323 | (580) 761-6602 | (580) 761-6602 |
| DT Farms | B | 15101 West North Ave Tonkawa, OK 74653-4774 | (580) 761-2771 | (580) 761-2771 |
| Farmers Coop, Alva | B | P.O. Box 603 Alva, OK 73717 | (580) 327-3854 | (580) 430-6005 |
| Farmers Grain Co. | B | 414 N 4TH ST Kremlin, OK 73753 | (580) 532-4773 | - |
| Ferda Kenny | P | 26585 County Road 960 Medford, OK 73759-5029 | (580) 716-5008 | (580) 716-5008 |
| Generations | - | PO Box 130 Nash, OK 73761-0130 | (580) 532-5115 | (580) 532-5115 |
| Goodknight Farms | - | 17595 CRNS 238 Chattanooga, OK 73528 | - | (580) 591-3702 |
| Hawk Farm Grain Bins | B | Wakita, OK 73771 | - | (620) 842-2294 |
| Hedges Ag | B | PO Box 67 Seiling, OK 73663-0067 | (580) 922-4478 | (580) 922-5631 |
| Helena Agri-Enterprises | B | 32890 E 211th St Coweta, OK 74429 | (918) 482-3363 | (918) 260-7080 |
| Jake's Seed Cleaning | P | 55176 S Country Rd 261 Isabella, OK 73747 | (580) 822-5278 | - |
| Jako Seed | P | 13711 Hwy 183 Hobart, OK 73651 | (580) 682-0302 | - |
| Johnston Seed Co. | - | PO Box 1392 Enid, OK 73702-1392 | (580) 249-4449 | - |
| Koehn | P | Route 1 Box 36A Isabella, OK 73747 | (580) 822-3135 | - |
| Mark Streber Seed Cleaning | - | 7100 Bethel Rd Shawnee, OK 74804 | (405) 566-8448 | - |
| McCormick Seed Farm | - | 207489 E Country Road 43 Woodward, OK 73801 | (580) 256-2932 | (580) 334-8137 |
| Mike's Seed Cleaning | P | 7723 HWY 141 Jonesboro, AR 72401 | - | (870) 810-0799 |
| Morris Seed Cleaning | P | 301 Buena Vista St Altus, OK 73521 | (580) 481-8154 | (580) 481-8154 |
| Northwest Seed Cleaning L | P | 45411 S Country Road 266 Ringwood, OK 73768 | - | (580) 554-5739 |
| Null | B | 13919 N 2180 Rd Hobart, OK 73651-1853 | (580) 726-3220 | (580) 530-2224 |
| OFSS | - | 201 S Range Rd Stillwater, OK 74074 | (405) 744-7741 | - |
| OFSS-Lasley 4L Corp. | - | 201 S Range Rd Stillwater, OK 74074 | (405) 744-7741 | - |
| Olen Wingard | P | 9163 N 2420 Rd Thomas, OK 73669-8247 | (580) 819-3994 | (580) 819-3994 |
| Pachner Outfit | P | 17305 HWY 46 Gage, OK 73843 | - | (580) 273-5084 |
| Porter's Seed | P | PO Box 197 Roe, AR 72134-0197 | (870) 241-3516 | (870) 830-2593 |
| Ross Seed | - | PO Box 769 Chickasha, OK 73023-0769 | - | (405) 224-2222 |
| Ross Seed | - | Box 639 El Reno, OK 73036-0639 | (405) 262-3456 | (405) 262-3456 |
| Schantz | P | 98397 N 2470 Rd Hydro, OK 73048 | (405) 663-2956 | (405) 542-7477 |
| Schmedt | B | 1701 Lee Dr Altus, OK 73521-2035 | (580) 223-4738 | (580) 465-0564 |
| Schnaithman | B | 4200 N Champlin Rd Garber, OK 73738-0902 | - | (405) 410-6646 |
| Sidwell | B | 209 2nd Street Kremlin, OK 73753 | - | (580) 874-2286 |
| Steinert | B | 8311 S Sinclair Rd. Covington, OK 74063 | (580) 864-7622 | (580) 541-2432 |
| Spielman & Son Portable Seed Service | P | 33869 Tower RD Arkansas City, KS 67005 | (580) 761-0440 | (580) 761-0440 |
| Streber Seed Cleaning | P | 2107 E45th St. Sand Springs, OK 73089-2403 | (405) 408-2169 | - |
| Titus Eric | P | 267662 E CR 62 Ringwood, OK 73768 | - | (580) 227-5056 |
| TNT Seed LLC | - | 1442 State HWY 132 Hennessey, OK 73742 | (580) 227-0990 | (580) 227-0990 |
| Tolle | B | 108298 Logan Rd Deer Creek, OK 74636 | (580) 670-0926 | (580) 670-4114 |
| Westfahl | B | 263860 CR 58 Okeene, OK 73763-6306 | (580) 822-3508 | (580) 822-5008 |
| Wheeler Brothers Grain Co. | - | PO Box 29 Watonga, OK 73772-0029 | (580) 623-7223 | (580) 614-1455 |
| Wilson Seed Cleaning | - | 115 S Old HWY 51 Stillwater, OK 74075 | (405) 612-7081 | (405) 612-7081 |
| Wingard Seed Service | P | 9163 N 2420 Rd Thonmas, OK 73669-8247 | (580) 819-0395 | (580) 819-0546 |