| 1st Choice Services | | (269) 370-8078 | Kalamazoo |
| A & B Lawn & Snow, LLC | | (269) 327-2982 | Kalamazoo |
| A Southern Gardener, Inc. | | (313) 881-2223 | Wayne |
| A.M. Leonard, Inc. | (888) 558-8665 | (937) 773-2694 | |
| AAA Lawn Care, Inc. | | (616) 677-4000 | Kent |
| AAA Turf, Inc. | (866) 639-8873 | (616) 669-7715 | Ottawa |
| Abbey Claerhout, CGIP | | (989) 631-2677 | Midland |
| Abele Greenhouse | | (989) 752-5625 | Saginaw |
| Access Business Group, LLC | | (616) 787-6432 | Kent |
| Acorn Farms, Inc. | (800) 589-2292 | (614) 371-1123 | |
| Adams Landscape Services | | (248) 651-0944 | Oakland |
| Advanced Landscape Health Specialists Inc. | (866) 688-7378 | (616) 878-7378 | Kent |
| Aesthetic Gardener | | (616) 395-8202 | Allegan |
| Agrecol LLC | | (608) 223-3571 | |
| Agroscaping, Inc. | | (810) 655-6654 | Genesee |
| Al Par One Source | | (989) 661-7850 | Shiawassee |
| Alan Cartwright, CGIP | | (734) 365-3815 | |
| Alan Hudson, CGIP | | (616) 842-1331 | Ottawa |
| Alan Weesies, CGIP | | (231) 730-0828 | Muskegon |
| All Around Lawn Care | | (734) 973-1736 | Washtenaw |
| All Seasons Landscape Service, Inc. | | (586) 295-7539 | |
| All Star Sprinklers, Inc. | | (586) 293-4826 | Macomb |
| Alpha Landscaping, Inc. | | (586) 677-4100 | Macomb |
| Alwood Landscaping & Nursery | | (989) 773-2575 | Isabella |
| American Tree, Inc. | | (810) 798-2525 | Lapeer |
| Ameriscape, Inc. | (800) 722-1171 | (231) 347-0077 | Grand Traverse |
| Ameriscapes Landscape Supply, Inc. | (866) 979-4769 | (810) 387-4769 | St. Clair |
| Amy Comito-Foust, CGIP | | (571) 285-2284 | |
| Andy Ts Farm Market | | (989) 224-7674 | Clinton |
| Angela Girdham, CGIP, HTR | | (517) 437-4734 | Hillsdale |
| Angelo's Supplies, Inc. | | (248) 669-3787 | Oakland |
| Ann Arbor Landscaping, Inc. | | (734) 665-3311 | Washtenaw |
| Ann Wilson, CGIP, Horticulturist | | | Washtenaw |
| Antaya, LLC | | (269) 731-2082 | Calhoun |
| Antonelli Landscape, LLC | (888) 567-2846 | (586) 336-7800 | |
| Apol's Water Gardens | | (616) 698-1030 | Kent |
| April Garden | | | |
| April Lange, CGIP | | (248) 651-1620 | Oakland |
| Arbor Green Landscaping | | (734) 482-1100 | Washtenaw |
| ArborTerra Landscape, LLC | | (734) 846-3249 | Washtenaw |
| Arcadia Gardens, LLC | | (269) 429-2353 | Berrien |
| Archangel Ancient Tree Archive | | (231) 378-4400 | Manistee |
| Archie J. Warner, CGIP | | (616) 891-1719 | Kent |
| Armintrout's Nursery | | (269) 673-6627 | Allegan |
| Arnett's Landscaping & Garden Center | | (269) 435-8385 | St. Joseph |
| Arrowhead Alpines | | (517) 223-3581 | Livingston |
| Artistic Development | | (248) 889-8483 | Oakland |
| Artistic Landscapes, Inc. | | (616) 669-9988 | Ottawa |
| Artistic Outdoor Services, Inc. | | (248) 855-8575 | Oakland |
| Ask the Certified Green Industry Professional Panel | | | |
| Association of Grand Rapids Landscape Professionals | | (616) 531-1370 | Ottawa |
| Atlas Block Co. Limited | (800) 461-0208 | (705) 534-6283 | |
| Auburn Oaks, Inc. | | (248) 852-2310 | Oakland |
| Aurora Landscape Design & Appraisal, LLC | | (248) 651-8828 | Oakland |
| Auto Control a division of Kerkstra Mechanical, LLC | | (616) 532-6100 | Kent |
| Auto Stack | | | |
| Automatic Supply Michigan | (877) 222-0240 | (616) 241-6610 | Ottawa |
| Ayles Tree Service, Inc. | | (517) 484-8318 | Eaton |
| B & C Greenhouses, Inc. | (800) 344-7406 | (269) 344-7777 | Kalamazoo |
| B.T. Lang Landscape Group | | (248) 305-7200 | Oakland |
| Badger Evergreen Nursery, LLC | | (269) 673-5546 | Allegan |
| Badley Lawn & Plow | | (586) 463-5296 | Macomb |
| Bakhuyzen Landscape, LLC | | (616) 896-1200 | Ottawa |
| Banner Sales and Consulting, Inc. | | (248) 366-7799 | Oakland |
| Barkman Landscaping, Inc. | (888) 884-0988 | (810) 653-6588 | Genesee |
| Barnes Nursery, Inc. | (800) 421-8722 | (419) 433-5525 | 0 |
| Barney Naylor, CGIP | | (269) 375-0084 | Kalamazoo |
| Barrett's Showplace Garden | | (517) 263-2660 | Lenawee |
| Barry R. Wood Jr., CGIP | | (810) 229-9407 | Livingston |
| BASF | | (937) 492-8597 | |
| BASF | | (713) 294-7628 | |
| Bay Arenac ISD Career Center | | (989) 686-4770 | Bay |
| Bay Landscaping, Inc. | (877) 873-3748 | (989) 893-0000 | Bay |
| BeaverCreek Landscaping, Inc. | | (616) 875-2116 | Ottawa |
| Beck Sod Farm, Inc. | (800) 968-2325 | (989) 864-3549 | Sanilac |
| Begick Nursery & Garden Center | (866) 323-4425 | (989) 684-4210 | Bay |
| Begonia Brothers Services, LLC | (888) 889-8282 | (888) 889-8282 | Oakland |
| Bella Fiori Gardeners, LLC | | (616) 897-2547 | Kent |
| Benefits of adding a rain garden | Kellogg Bird Sanctuary | | | |
| Berends Hendricks Stuit Insurance | | (616) 510-2437 | Ottawa |
| Bernadette Orzechowski, CGIP | | (616) 774-0783 | Kent |
| Best Choice Lawn Care | | (616) 681-2555 | Allegan |
| Best Lawns, LLC | | (734) 671-0413 | Wayne |
| BetterFinds LLC | | (989) 793-8521 | Saginaw |
| Betz, Susan | | (517) 849-2470 | Hillsdale |
| BFG Supply Co | (800) 883-0234 | (800) 883-0234 | |
| BladeRunners Landscaping, Inc. | | (810) 923-5111 | Livingston |
| Bloomfield Land & Plants LLC | | (248) 737-0947 | Oakland |
| Blue Grass Farms | (800) 346-0272 | (800) 346-0272 | |
| Blue Ridge Landscaping, Inc. | | (616) 875-7779 | Ottawa |
| Blue Thumb Distributing, Inc. | (888) 619-3474 | (989) 921-3474 | Saginaw |
| Bluegrass Lawn & Landscape, Inc. | | (517) 676-9500 | Ingham |
| Bobcat Central Inc. | (800) 344-1228 | (517) 394-1155 | Ingham |
| Boehlers Greenhouse, Inc. | | (989) 792-2039 | Saginaw |
| Bonadeo Nursery & Tree Farm, Inc. | | (248) 889-3445 | Oakland |
| Bordine Nursery Ltd. | | (810) 655-5588 | Genesee |
| Bordine Nursery Ltd. | | (248) 651-9000 | Oakland |
| Bosch's Landscape & Lawn Specialties Inc | | (616) 399-6861 | Ottawa |
| Botanico, Inc. | (800) 557-5522 | (931) 934-2868 | |
| Bouma Brothers Landscape, Inc. | | (616) 878-9524 | Kent |
