Michigan Drug Test


At Workplace Screening Intelligence (WSI), we are dedicated to simplifying the drug testing process for employers across Michigan. Our comprehensive services cater to both DOT and non-DOT regulated industries, ensuring your workplace remains safe and compliant with state and federal regulations.

Why Choose Workplace Screening in Michigan?


  • Expertise and Experience: With years of experience in the drug screen industry, our team at WSI understands the unique requirements and challenges faced by employers in Michigan.
  • Comprehensive Services: We offer a full range of drug testing services, including pre-employment, random, post-accident, and reasonable suspicion testing.
  • Advanced Technology: Utilizing the latest in testing technology, we provide accurate and reliable results quickly, reducing downtime and ensuring minimal disruption to your operations.
  • Compliance Assurance: Our knowledgeable staff stays up-to-date with the latest regulations, helping you navigate and comply with both Michigan-specific and federal guidelines.
  • Electronically Enabled Sites: We offer 20,000+ electronically enabled sites which means you can order a drug test and complete it today, or by your deadline.
  • Convenient Locations: With a network of collection sites throughout Michigan, we ensure easy access and convenience for your employees.

How It Works


  1. Contact Us: Reach out to our team to discuss your specific needs and receive a customized screening plan.
  2. Schedule Testing: We’ll arrange for testing at one of our convenient locations or even on-site at your workplace.
  3. Receive Results: Access your results securely online, ensuring prompt and confidential reporting.
  4. Stay Compliant: Let us help you stay compliant with ongoing monitoring and support services tailored to Michigan‘s and federal regulations.

Core Services


Reason for Test


  • Pre-Employment Test
  • Random Test
  • Post-Accident Test
  • Reasonable Suspicion Test
  • Return to Duty Test
  • Follow-up Test
  • Periodic Test

Physicals & Health Testing


  • DOT Physical
  • Physical
    • Respirator Physicals: For workers who handle hazardous substances.
    • Pulmonary Function Test
    • OSHA Medical Questionnaire
    • Lift Test
    • Chest X-Rays
    • Kraus Weber
    • EKG
    • Vision Test
      • Vision Snellen
      • Vision Titmus
      • Vision Ishihara
      • Vision Jager
  • Titer Test
    • Hepatitis A
    • Hepatitis B
    • Hepatitis C
    • TransFERRON Gold Tuberculosis
    • Measles
  • Wellness Testing

Workplace Programs and Training


Additional Services


  • FMCSA Clearinghouse Support
  • Background Checks
    • County Background Search Check
    • State Background Search Check
    • Federal Background Search Check
    • Name Alias Background Search Check
    • Sex Offender Background Search Check
    • OIG Background Search Check
    • SSN Trace Background Search Check
    • Global Terror Watch List Background Search Check
    • Adverse Action Background Search Check Assistance

Contact Us


Michigan Testing Locations


Name Address City State ZIP Code
WSI Testing Location 33722 Woodward Avenue Birmingham Michigan 48009
WSI Testing Location 10127 MARINE CITY HWY Ira Michigan 48023
WSI Testing Location 33089 GROESBECK HWY Fraser Michigan 48026
WSI Testing Location 36358 Garfield Road Clinton Township Michigan 48035
WSI Testing Location 15855 19 MILE RD Clinton Township Michigan 48038
WSI Testing Location 18400 Hall Road Clinton Township Michigan 48038
WSI Testing Location 36555 29 Mile Road Lenox Michigan 48050
WSI Testing Location 50110 GRATIOT AVENUE Chesterfield Michigan 48051
WSI Testing Location 4100 RIVER RD East China Michigan 48054
WSI Testing Location 4190 24TH AVE Fort Gratiot Michigan 48059
WSI Testing Location 1131 ERIE ST Port Huron Michigan 48060
WSI Testing Location 1641 10TH ST Port Huron Michigan 48060
WSI Testing Location 1644 STONE ST Port Huron Michigan 48060
WSI Testing Location 1824 Pine Grove Avenue Port Huron Michigan 48060
WSI Testing Location 2601 ELECTRIC AVE. Port Huron Michigan 48060
WSI Testing Location 3550 Pine Grove Avenue Port Huron Michigan 48060
WSI Testing Location 68834 S MAIN STREET Richmond Michigan 48062
WSI Testing Location 80650 VAN DYKE RD Romeo Michigan 48065
WSI Testing Location 2140 Twelve Mile Road Royal Oak Michigan 48067
WSI Testing Location 27351 DEQUINDRE RD Madison Heights Michigan 48071
WSI Testing Location 350 East 12 Mile Road Madison Heights Michigan 48071
WSI Testing Location 5130 COOLIDGE HWY Royal Oak Michigan 48073
WSI Testing Location 20905 Greenfield Road Southfield Michigan 48075
WSI Testing Location 22255 Greenfield Rd Southfield Michigan 48075
WSI Testing Location 24901 Northwestern Hwy Southfield Michigan 48075
WSI Testing Location 26185 Greenfield Rd Southfield Michigan 48076
WSI Testing Location 26185 Greenfield Road Southfield Michigan 48076
WSI Testing Location 29628 Southfield Road Southfield Michigan 48076
WSI Testing Location 32008 Harper Avenue St. Clair Shores Michigan 48082
WSI Testing Location 1075 Rankin Drive Troy Michigan 48083
WSI Testing Location 1663 STEPHENSON HWY Troy Michigan 48083
WSI Testing Location 627 East Maple Road Troy Michigan 48083
WSI Testing Location 1050 Wilshire Drive Troy Michigan 48084
WSI Testing Location 4086 Rochester Road Troy Michigan 48085
WSI Testing Location 26060 Schoenherr Road Warren Michigan 48089
WSI Testing Location 24800 WARNER AVE Warren Michigan 48091
WSI Testing Location 31200 DEQUINDRE RD Warren Michigan 48092
WSI Testing Location 11569 E 12 MILE ROAD Warren Michigan 48093
WSI Testing Location 29176 VAN DYKE AVE Warren Michigan 48093
WSI Testing Location 12150 30 Mile Rd Washington Michigan 48095
WSI Testing Location 17500 FEDERAL DR Allen Park Michigan 48101
WSI Testing Location 1785 W STADIUM BLVD Ann Arbor Michigan 48103
WSI Testing Location 2531 Jackson Avenue Ann Arbor Michigan 48103
WSI Testing Location 1000 East Stadium Boulevard Ann Arbor Michigan 48104
WSI Testing Location 3280 Washtenaw Avenue Ann Arbor Michigan 48104
WSI Testing Location 3131 S. STATE ST. Ann Arbor Michigan 48108
WSI Testing Location 1500 E MEDICAL CENTER DR. Ann Arbor Michigan 48109
WSI Testing Location 510 Main St Belleville Michigan 48111
WSI Testing Location 2300 Genoa Business Park Dr Brighton Michigan 48114
WSI Testing Location 2305 Genoa Business Park Dr Brighton Michigan 48114
WSI Testing Location 7960 Grand River Avenue Brighton Michigan 48114
WSI Testing Location 775 S Main St Chelsea Michigan 48118
WSI Testing Location 23455 MICHIGAN AVE Dearborn Michigan 48124
WSI Testing Location 2976 West Outer Drive Dearborn Michigan 48124
WSI Testing Location 13510 Michigan Avenue Dearborn Michigan 48126
WSI Testing Location 13530 Michigan Avenue Dearborn Michigan 48126
WSI Testing Location 5250 Auto Club Drive Dearborn Michigan 48126
WSI Testing Location 6221 N TELEGRAPH RD Dearborn Heights Michigan 48127
WSI Testing Location 100 POWELL DRIVE Dundee Michigan 48131
WSI Testing Location 7581 Secor Road Lambertville Michigan 48144
WSI Testing Location 1770 Fort Street Lincoln Park Michigan 48146
WSI Testing Location 11502 Middlebelt Road Livonia Michigan 48150
WSI Testing Location 27544 Schoolcraft Livonia Michigan 48150
WSI Testing Location 28196 Schoolcraft Livonia Michigan 48150
WSI Testing Location 34095 PLYMOUTH ROAD Livonia Michigan 48150
WSI Testing Location 20290 Middlebelt Road Livonia Michigan 48152
WSI Testing Location 22341 West 8 Mile Road Livonia Michigan 48152
WSI Testing Location 37595 SEVEN MILE RD Livonia Michigan 48152
WSI Testing Location 1261 North Telegraph Road Monroe Michigan 48162
WSI Testing Location 718 N MACOMB ST Monroe Michigan 48162
WSI Testing Location 901 N Macomb St Monroe Michigan 48162
WSI Testing Location 10000 Wayne Road Romulus Michigan 48174
WSI Testing Location 10912 Wayne Road Romulus Michigan 48174
WSI Testing Location 29750 Ecorse Road Romulus Michigan 48174
WSI Testing Location 9301 MIDDLEBELT RD. Romulus Michigan 48174
WSI Testing Location 23050 West Road Brownstown Charter Township Michigan 48183
WSI Testing Location 19200 West Road Woodhaven Michigan 48183
WSI Testing Location 21090 Allen Road Woodhaven Michigan 48183
WSI Testing Location 22505 Allen Road Woodhaven Michigan 48183
WSI Testing Location 35360 Nankin Boulevard Westland Michigan 48185
WSI Testing Location 43033 Ford Road Canton Michigan 48187
WSI Testing Location 16525 Fort Street Southgate Michigan 48195
WSI Testing Location 4727 Saint Antoine Detroit Michigan 48201
WSI Testing Location 2630 East Jefferson Avenue Detroit Michigan 48207
WSI Testing Location 19251 Mack Avenue Grosse Pointe Woods Michigan 48236
WSI Testing Location 20311 Mack Avenue Grosse Pointe Woods Michigan 48236
WSI Testing Location 20599 Mack Avenue Grosse Pointe Woods Michigan 48236
WSI Testing Location 14671 TELEGRAPH ROAD Redford Michigan 48239
WSI Testing Location 2596 Worldgateway Place Detroit Michigan 48242
WSI Testing Location 4059 West Maple Road Bloomfield Township Michigan 48301
WSI Testing Location 2274 South Telegraph Road Bloomfield Hills Michigan 48302
WSI Testing Location 1101 W UNIVERSITY DR Rochester Michigan 48307
WSI Testing Location 2050 South Rochester Road Rochester Hills Michigan 48307
WSI Testing Location 2820 CROOKS RD. Rochester Hills Michigan 48309
WSI Testing Location 39333 Van Dyke Ave Sterling Heights Michigan 48313
WSI Testing Location 6015 19 MILE RD Sterling Heights Michigan 48314
WSI Testing Location 51863 SCHOENHERR RD Shelby Township Michigan 48315
WSI Testing Location 2240 N OPDYKE RD Auburn Hills Michigan 48326
WSI Testing Location 1305 N OAKLAND BLVD Waterford Michigan 48327
WSI Testing Location 1305 N Oakland Blvd Waterford Township Michigan 48327
WSI Testing Location 5800 Highland Road Waterford Township Michigan 48327
WSI Testing Location 27620 Farmington Road Farmington Hills Michigan 48334
WSI Testing Location 28595 Orchard Lake Rd Farmington Hills Michigan 48334
WSI Testing Location 1915 N PERRY ST Pontiac Michigan 48340
WSI Testing Location 461 W HURON ST Pontiac Michigan 48341
WSI Testing Location 6310 Sashabaw Road SUITE C Clarkston Michigan 48346
WSI Testing Location 1375 S Lapeer Rd Lake Orion Michigan 48360
WSI Testing Location 1424 S LAPEER RD Lake Orion Michigan 48360
WSI Testing Location 385 N LAPEER RD Oxford Michigan 48371
WSI Testing Location 47601 GRAND RIVER AVE Novi Michigan 48374
WSI Testing Location 40015 GRAND RIVER ROAD Novi Michigan 48375
WSI Testing Location 42875 Grand River Avenue Novi Michigan 48375
WSI Testing Location 901 Nordic Drive White Lake Charter Township Michigan 48383
WSI Testing Location 29600 WIXOM RD Wixom Michigan 48393
WSI Testing Location 110 East Huron Avenue Bad Axe Michigan 48413
WSI Testing Location 1100 S VAN DYKE RD Bad Axe Michigan 48413
WSI Testing Location 9900 BIRCH RUN RD Birch Run Michigan 48415
WSI Testing Location 11307 North Linden Road Clio Michigan 48420
WSI Testing Location 4272 W Vienna Point Plaza Clio Michigan 48420
WSI Testing Location 4272 West Vienna Point Plaza Clio Michigan 48420
WSI Testing Location 8759 MONROE RD Durand Michigan 48429
WSI Testing Location 3220 West Silver Lake Road Fenton Michigan 48430
WSI Testing Location 1 Genesys Parkway Grand Blanc Michigan 48439
WSI Testing Location 2313 Hill Road Grand Blanc Michigan 48439
WSI Testing Location 8401 Holly Rd Grand Blanc Michigan 48439
WSI Testing Location 147 North Almont Avenue Imlay City Michigan 48444
WSI Testing Location 1375 N MAIN ST Lapeer Michigan 48446
WSI Testing Location 1794 N LAPEER RD SUITE D Lapeer Michigan 48446
WSI Testing Location 1794 North Lapeer Road Lapeer Michigan 48446
WSI Testing Location 2750 Main Street Marlette Michigan 48453
WSI Testing Location 2770 MAIN ST Marlette Michigan 48453
WSI Testing Location 120 Delaware St Sandusky Michigan 48471
WSI Testing Location 38 South Elk Street Sandusky Michigan 48471
WSI Testing Location 1 Hurley Plaza Flint Michigan 48503
WSI Testing Location 2284-2 BALLENGER RD Flint Michigan 48503
WSI Testing Location 5494 North Dort Highway Flint Michigan 48505
WSI Testing Location 2469 West Hill Road Flint Michigan 48507
WSI Testing Location 5494 South Dort Highway Grand Blanc Michigan 48507
WSI Testing Location 1459 S. CENTER RD Burton Michigan 48509
WSI Testing Location 1125 North Linden Road Flint Michigan 48532
WSI Testing Location 2265 S Linden Rd Flint Michigan 48532
WSI Testing Location 600 IRVING Saginaw Michigan 48602
WSI Testing Location 900 Cooper Avenue Saginaw Michigan 48602
WSI Testing Location 2062 N CENTER RD Saginaw Michigan 48603
WSI Testing Location 5570 State Street Saginaw Michigan 48603
WSI Testing Location 5650 Bay Road Saginaw Michigan 48604
WSI Testing Location 4677 Towne Centre Road Saginaw Charter Township Michigan 48604
WSI Testing Location 8767 Gratiot Road Saginaw Michigan 48609
WSI Testing Location 1438 North Mc Ewan Street Clare Michigan 48617
WSI Testing Location 700 West 5th Street Clare Michigan 48617
WSI Testing Location 705 W 5th St Clare Michigan 48617
WSI Testing Location 5694 Midland Road Freeland Michigan 48623
WSI Testing Location 1105 East Cedar Avenue Gladwin Michigan 48624
WSI Testing Location 9249 W. LAKE CITY RD Houghton Lake Michigan 48629
WSI Testing Location 1549 Washington Street Midland Michigan 48640
WSI Testing Location 4201 Campus Ridge Drive Midland Michigan 48640
WSI Testing Location 4615 EASTMAN AVE Midland Michigan 48640
WSI Testing Location 4615 Eastman Avenue Midland Michigan 48640
WSI Testing Location 420 Waldo Avenue Midland Michigan 48642
WSI Testing Location 805 W Cedar St Standish Michigan 48658
WSI Testing Location 725 East State Street Sterling Michigan 48659
WSI Testing Location PO BOX 355 Sterling Michigan 48659
WSI Testing Location 2463 S M 30 West Branch Michigan 48661
WSI Testing Location 640 Court Street West Branch Michigan 48661
WSI Testing Location 2919 Wilder Road Bay City Michigan 48706
WSI Testing Location 4175 North Euclid Avenue Bay City Michigan 48706
WSI Testing Location 4175 South Euclid Avenue Bay City Michigan 48706
WSI Testing Location 4 Columbus Avenue Bay City Michigan 48708
WSI Testing Location 302 North State Street Caro Michigan 48723
WSI Testing Location 401 N HOOPER ST Caro Michigan 48723
WSI Testing Location 441 N. STATE STREET Caro Michigan 48723
WSI Testing Location 4672 Hill Street Cass City Michigan 48726
WSI Testing Location 4675 HILL STREET Cass City Michigan 48726
WSI Testing Location 1458 W CENTER RD Essexville Michigan 48732
WSI Testing Location 110 BEECH ST Tawas City Michigan 48763
WSI Testing Location 200 HEMLOCK Tawas City Michigan 48763
WSI Testing Location 651 Hemlock Street Tawas City Michigan 48763
WSI Testing Location 321 East Warwick Drive Alma Michigan 48801
WSI Testing Location 409 Gratiot Avenue Alma Michigan 48801
WSI Testing Location 406 E ELM ST Carson City Michigan 48811
WSI Testing Location 321 E. HARRIS ST. Charlotte Michigan 48813
WSI Testing Location 616 MEIJER STREET Charlotte Michigan 48813
WSI Testing Location 12970 SOUTH US 27 Dewitt Michigan 48820
WSI Testing Location 1500 S Main St Eaton Rapids Michigan 48827
WSI Testing Location 1014 E. WASHINGTON ST. Greenville Michigan 48838
WSI Testing Location 615 S. BOWER ST Greenville Michigan 48838
WSI Testing Location 705 S. GREENVILLE W. DR.,102A Greenville Michigan 48838
WSI Testing Location 1623 Haslett Rd Haslett Michigan 48840
WSI Testing Location 2132 N. CEDAR ST Holt Michigan 48842
WSI Testing Location 1255 East Grand River Avenue Howell Michigan 48843
WSI Testing Location 200 South Highlander Way Howell Michigan 48843
WSI Testing Location 4185 E Grand River Ave Howell Michigan 48843
WSI Testing Location 1201 South State Road Ionia Michigan 48846
WSI Testing Location 479 LAFAYETTE ST Ionia Michigan 48846
WSI Testing Location 418 Washington Avenue Lakeview Michigan 48850
WSI Testing Location 1523 South Mission Street Mount Pleasant Michigan 48858
WSI Testing Location 4950 East Blue Grass Road Mount Pleasant Michigan 48858
WSI Testing Location 520 North Mission Street Mount Pleasant Michigan 48858
WSI Testing Location 905 E Pickard Rd Mt Pleasant Michigan 48858
WSI Testing Location 1859 EAST GRAND RIVER DR. Okemos Michigan 48864
WSI Testing Location 100 HEALTHPARK DRIVE Owosso Michigan 48867
WSI Testing Location 216 E. COMSTOCK Owosso Michigan 48867
WSI Testing Location 239 N STATE RD Owosso Michigan 48867
WSI Testing Location 901 South Oakland Street Saint Johns Michigan 48879
WSI Testing Location 2720 Alpha Access Street Lansing Michigan 48910
WSI Testing Location 840 East Mount Hope Avenue Lansing Michigan 48910
WSI Testing Location 6810 South Cedar Street Lansing Michigan 48911
WSI Testing Location 1322 E Michigan Ave Lansing Michigan 48912
WSI Testing Location 505 North Clippert Street Lansing Michigan 48912
WSI Testing Location 1210 W Saginaw St Lansing Michigan 48915
WSI Testing Location 644 Migaldi Ln Lansing Michigan 48917
WSI Testing Location 3414 Lovers Lane Kalamazoo Michigan 49001
WSI Testing Location 820 John Street Kalamazoo Michigan 49001
WSI Testing Location 2550 Airview Boulevard Portage Michigan 49002
WSI Testing Location 5050 S SPRINKLE RD Portage Michigan 49002
WSI Testing Location 5142 South Westnedge Avenue Portage Michigan 49002
WSI Testing Location 6012 South Westnedge Avenue Portage Michigan 49002
WSI Testing Location 601 John Street Kalamazoo Michigan 49007
WSI Testing Location 6789 ELM VALLEY DRIVE Kalamazoo Michigan 49009
WSI Testing Location 555 LINN STREET Allegan Michigan 49010
WSI Testing Location 25 East Columbia Avenue Battle Creek Michigan 49015
WSI Testing Location 2845 Capital Avenue Southwest Battle Creek Michigan 49015
WSI Testing Location 265 Fremont Street Battle Creek Michigan 49017
WSI Testing Location 1803 Michigan 139 Benton Harbor Michigan 49022
WSI Testing Location 1850 PIPESTONE RD Benton Harbor Michigan 49022
WSI Testing Location 7901 Angling Road Portage Michigan 49024
WSI Testing Location 7901 ANGLING ROAD Portage Michigan 49024
WSI Testing Location 7901 Angling Road Portage Michigan 49024
WSI Testing Location 109 SCHOOL ST Cassopolis Michigan 49031
WSI Testing Location 114 SPENCER RD Cassopolis Michigan 49031
WSI Testing Location 274 E Chicago St Coldwater Michigan 49036
WSI Testing Location 892 E. CHICAGO STREET Coldwater Michigan 49036
WSI Testing Location Grand Street Coldwater Michigan 49036
WSI Testing Location 1521 Gull Road Kalamazoo Michigan 49048
WSI Testing Location 1634 Gull Road Kalamazoo Michigan 49048
WSI Testing Location 1820 SHAFFER ST Kalamazoo Michigan 49048
WSI Testing Location 5555 GULL RD Kalamazoo Michigan 49048
WSI Testing Location 1108 W. STATE STREET Hastings Michigan 49058
WSI Testing Location 225 Michigan 37 Hastings Michigan 49058
WSI Testing Location 400 HOBART ST Cadillac Michigan 49061
WSI Testing Location 1174 W MICHIGAN AVE Marshall Michigan 49068
WSI Testing Location 200 North Madison Street Marshall Michigan 49068
WSI Testing Location 404 Hazen Street Paw Paw Michigan 49079
WSI Testing Location 181 E. CHICAGO ST. Quincy Michigan 49082
WSI Testing Location 2500 NILES RD Saint Joseph Michigan 49085
WSI Testing Location 3333 S STATE ST Saint Joseph Michigan 49085
WSI Testing Location 3900 HOLLYWOOD RD Saint Joseph Michigan 49085
WSI Testing Location 1234 NAPIER AVE St Joseph Michigan 49085
WSI Testing Location 1260 Hilltop Road St. Joseph Michigan 49085
WSI Testing Location 3800 HOLLYWOOD ROAD St. Joseph Michigan 49085
WSI Testing Location 600 S Lakeview St Sturgis Michigan 49091
WSI Testing Location 916 MYRTLE AVE. Sturgis Michigan 49091
WSI Testing Location 16587 ENTERPRISE DR. Three Rivers Michigan 49093
WSI Testing Location 711 South Health Parkway Three Rivers Michigan 49093
WSI Testing Location 13326 N BLVD Vicksburg Michigan 49097
WSI Testing Location 2002 S 11TH ST Niles Michigan 49120
WSI Testing Location 31 N SAINT JOSEPH AVE Niles Michigan 49120
WSI Testing Location 5515 Cleveland Ave Stevensville Michigan 49127
WSI Testing Location 100 East Michigan Avenue Jackson Michigan 49201
WSI Testing Location 300 W WASHINGTON AVE Jackson Michigan 49201
WSI Testing Location 500 LANSING AVE Jackson Michigan 49201
WSI Testing Location 1325 North West Avenue Jackson Michigan 49202
WSI Testing Location 715 North Main Street Adrian Michigan 49221
WSI Testing Location 168 S HOWELL ST Hillsdale Michigan 49242
WSI Testing Location 189 Pine Hill Lake Drive Horton Michigan 49246
WSI Testing Location 5449 S. OCCIDENTAL HWY Tecumseh Michigan 49286
WSI Testing Location 6231 WEST RIVER DR NE Belmont Michigan 49306
WSI Testing Location 605 OAK ST Big Rapids Michigan 49307
WSI Testing Location 705 Oak Street Big Rapids Michigan 49307
WSI Testing Location 8501 Meadow Creek Drive Rockford Michigan 49341
WSI Testing Location 1141 West Randall Street Coopersville Michigan 49404
WSI Testing Location 230 W OAK Fremont Michigan 49412
WSI Testing Location 923 S BEECHTREE ST Grand Haven Michigan 49417
WSI Testing Location 6105 Wilson Avenue Southwest Wyoming Michigan 49418
WSI Testing Location 335 120th Avenue Holland Michigan 49424
WSI Testing Location 383 GARDEN AVE Holland Michigan 49424
WSI Testing Location 1 North Atkinson Drive Ludington Michigan 49431
WSI Testing Location 329 North Jebavy Drive Ludington Michigan 49431
WSI Testing Location 5 ATKINSON DRIVE Ludington Michigan 49431
WSI Testing Location 5511 U.S. 10 Ludington Michigan 49431
WSI Testing Location 5656 U.S. 10 Ludington Michigan 49431
WSI Testing Location ONE ATKINSON DRIVE Ludington Michigan 49431
WSI Testing Location 1675 Leahy St Muskegon Michigan 49442
WSI Testing Location 1560 E SHERMAN BLVD STE 125 Muskegon Michigan 49444
WSI Testing Location 1670 East Sherman Boulevard Muskegon Michigan 49444
WSI Testing Location 433 SEMINOLE RD Muskegon Michigan 49444
WSI Testing Location 1446 Maple Ridge Street Muskegon Michigan 49445
WSI Testing Location 3697 Haymeadow Avenue Ravenna Michigan 49451
WSI Testing Location 905 E COLBY Whitehall Michigan 49461
WSI Testing Location 905 E. COLBY STREET Whitehall Michigan 49461
WSI Testing Location 8333 Felch Street Zeeland Michigan 49464
WSI Testing Location 1140 Monroe Avenue Northwest Grand Rapids Michigan 49503
WSI Testing Location 150 Jefferson Avenue Southeast Grand Rapids Michigan 49503
WSI Testing Location 1840 WEALTHY ST SE Grand Rapids Michigan 49506
WSI Testing Location 1740 28th Street Southeast Grand Rapids Michigan 49508
WSI Testing Location 4433 BRETON AVE. SE Kentwood Michigan 49508
WSI Testing Location 4600 Breton Road Southeast Kentwood Michigan 49508
WSI Testing Location 3625 CLYDE PARK SW Grand Rapids Michigan 49509
WSI Testing Location 3625 Clyde Park Avenue Southwest Wyoming Michigan 49509
WSI Testing Location 1971 E BELTLINE AVE NE Grand Rapids Michigan 49525
WSI Testing Location 2750 East Beltline Avenue Northeast Grand Rapids Michigan 49525
WSI Testing Location 3935 LAKE MICHIGAN DR NW Grand Rapids Michigan 49534
WSI Testing Location 2331 Alpine Avenue Northwest Grand Rapids Michigan 49544
WSI Testing Location 1155 East Paris Avenue Southeast Grand Rapids Michigan 49546
WSI Testing Location 723 Kenmoor Avenue Southeast Grand Rapids Michigan 49546
WSI Testing Location 436 44th Street Southeast Grand Rapids Michigan 49548
WSI Testing Location 80 68th Street Southeast Grand Rapids Michigan 49548
WSI Testing Location 520 Cobb St Cadillac Michigan 49601
WSI Testing Location 520 COBB STREET Cadillac Michigan 49601
WSI Testing Location 8950 PROFESSIONAL DRIVE Cadillac Michigan 49601
WSI Testing Location 9065 34 Road Cadillac Michigan 49601
WSI Testing Location 4955 Michigan 88 Bellaire Michigan 49615
WSI Testing Location 6227 Frankfort Hwy Benzonia Michigan 49616
WSI Testing Location 419 S CORAL ST Kalkaska Michigan 49646
WSI Testing Location 419 W. STATE Mancelona Michigan 49659
WSI Testing Location 1391 East Parkdale Avenue Manistee Michigan 49660
WSI Testing Location 207 S. CHESTNUT Reed City Michigan 49677
WSI Testing Location 225 North State Street Reed City Michigan 49677
WSI Testing Location 265 W. OSCEOLA AVENUE Reed City Michigan 49677
WSI Testing Location 300 N. PATTERSON ROAD Reed City Michigan 49677
WSI Testing Location 1105 6TH ST Traverse City Michigan 49684
WSI Testing Location 3074 N US 31 S Traverse City Michigan 49684
WSI Testing Location 4290 Copper Ridge Drive Traverse City Michigan 49684
WSI Testing Location 550 Munson Avenue Traverse City Michigan 49686
WSI Testing Location 6100 U.S. 31 N Williamsburg Michigan 49690
WSI Testing Location 6170 U.S. 31 Williamsburg Michigan 49690
WSI Testing Location 109 S 13TH AVE Alpena Michigan 49707
WSI Testing Location 1501 W Chisholm St Alpena Michigan 49707
WSI Testing Location 165 South State Avenue Alpena Michigan 49707
WSI Testing Location 211 LONG RAPIDS RD Alpena Michigan 49707
WSI Testing Location 393 Long Rapids Road Alpena Michigan 49707
WSI Testing Location 11899 M 32 WEST Atlanta Michigan 49709
WSI Testing Location 1249 Michigan 75 Boyne City Michigan 49712
WSI Testing Location 562 S. M-75 Boyne City Michigan 49712
WSI Testing Location 14700 LAKESHORE DRIVE Charlevoix Michigan 49720
WSI Testing Location 748 S. MAIN STREET Cheboygan Michigan 49721
WSI Testing Location 601 Bridge Street East Jordan Michigan 49727
WSI Testing Location 1996 WALDEN DR Gaylord Michigan 49735
WSI Testing Location 271 McCoy Road Gaylord Michigan 49735
WSI Testing Location 829 North Center Avenue Gaylord Michigan 49735
WSI Testing Location 1100 E MICHIGAN AVE Grayling Michigan 49738
WSI Testing Location 15774 STATE ST. Hillman Michigan 49746
WSI Testing Location 3040 Bourn Street Albert Michigan 49756
WSI Testing Location 21258 W. M-68 HWY Onaway Michigan 49765
WSI Testing Location 1890 U.S. 131 Petoskey Michigan 49770
WSI Testing Location 205 S. BRADLEY HWY Rogers City Michigan 49779
WSI Testing Location 573 N BRADLEY HWY Rogers City Michigan 49779
WSI Testing Location 1140 N STATE ST St. Ignace Michigan 49781
WSI Testing Location 500 OSBORN BLVD Sault S Marie Michigan 49783
WSI Testing Location 2186 Shunk Road Sault Ste. Marie Michigan 49783
WSI Testing Location 16523 S. WATERTOWER DRIVE Kincheloe Michigan 49788
WSI Testing Location 1311 South Stephenson Avenue Iron Mountain Michigan 49801
WSI Testing Location 1706 South Stephenson Avenue Iron Mountain Michigan 49801
WSI Testing Location 1707 South Stephenson Avenue Iron Mountain Michigan 49801
WSI Testing Location 1721 South Stephenson Avenue Iron Mountain Michigan 49801
WSI Testing Location 1100 Ludington Street Escanaba Michigan 49829
WSI Testing Location 2500 7th Ave S Escanaba Michigan 49829
WSI Testing Location 3401 LUDINGTON ST Escanaba Michigan 49829
WSI Testing Location 710 South Lincoln Road Escanaba Michigan 49829
WSI Testing Location 1313 Minnesota Avenue Gladstone Michigan 49837
WSI Testing Location 135 E STATE HWY M35 Gwinn Michigan 49841
WSI Testing Location 101 S 4th St Ishpeming Michigan 49849
WSI Testing Location 901 Lakeshore Drive Ishpeming Michigan 49849
WSI Testing Location 7870W U.S. 2 Manistique Michigan 49854
WSI Testing Location 1414 West Fair Avenue Marquette Michigan 49855
WSI Testing Location 201 Rublein Street Marquette Michigan 49855
WSI Testing Location 850 West Baraga Avenue Marquette Michigan 49855
WSI Testing Location 1100 10TH ST Menominee Michigan 49858
WSI Testing Location 1500 Sand Point Road Munising Michigan 49862
WSI Testing Location 1504 SAN POINT ROAD Munising Michigan 49862
WSI Testing Location 100 MALTON RD Negaunee Michigan 49866
WSI Testing Location 502 W. HARRIE Newberry Michigan 49868
WSI Testing Location 205 OSCEOLA ST Laurium Michigan 49913
WSI Testing Location 1328 HWY. US 2 Crystal Falls Michigan 49920
WSI Testing Location 500 CAMPUS DR Hancock Michigan 49930
WSI Testing Location 1400 W ICE LAKE RD Iron River Michigan 49935
WSI Testing Location 1400 W. ICE LAKE RD Iron River Michigan 49935
WSI Testing Location 1500 West Ice Lake Road Iron River Michigan 49935
WSI Testing Location N10561 GRANDVIEW LN Ironwood Michigan 49938
WSI Testing Location 18341 US HWY. 41 L'anse Michigan 49946
WSI Testing Location 601 S. 7TH STREET Ontonagon Michigan 49953

At WSI, we take the hassle out of drug testing, allowing you to focus on what matters most – running your business. Trust us to be your partner in maintaining a safe, productive, and compliant workplace in Michigan.