| 1 | Laboratory Corporation of America Holdings | NC | $1.44B | 103.9M | 0 |
| 2 | Laboratory Corporation of America Holdings | NJ | $717.5M | 109.5M | 0 |
| 3 | Unilab Corporation | CA | $668.5M | 111.6M | 0 |
| 4 | Natera Inc. | CA | $641.5M | 7.3M | 0 |
| 5 | Quest Diagnostics Incorporated | NJ | $637.7M | 57.2M | 0 |
| 6 | Bioreference Health LLC | NJ | $620.1M | 60.8M | 0 |
| 7 | Laboratory Corporation of America Holdings | OH | $617.0M | 53.5M | 0 |
| 8 | Millennium Health LLC | CA | $579.3M | 30.7M | 0 |
| 9 | Quest Diagnostics LLC IL | IL | $429.8M | 29.3M | 0 |
| 10 | Texas Department of State Health | TX | $381.9M | 2.7M | 0 |
| 11 | State of Alabama Department of Public Health | AL | $373.6M | 4.7M | 0 |
| 12 | Sonora Quest Laboratories LLC | AZ | $298.1M | 28.5M | 0 |
| 13 | Laboratory Corporation of America Holdings | AL | $289.1M | 29.7M | 0 |
| 14 | Laboratory Corporation of America Holdings | NC | $281.4M | 4.8M | 0 |
| 15 | Quest Diagnostics Clinical Laboratories INC | TX | $276.8M | 26.9M | 0 |
| 16 | Exact Sciences Laboratories LLC | WI | $276.5M | 983K | 0 |
| 17 | Laboratory Corporation of America | AZ | $265.9M | 31.0M | 0 |
| 18 | Laboratory Corporation of America Holdings | NC | $264.3M | 15.3M | 0 |
| 19 | Dominion Diagnostics, LLC | RI | $249.2M | 5.5M | 0 |
| 20 | Laboratory Corporation of America Holdings | WV | $220.0M | 8.8M | 0 |
| 21 | Precision Toxicology, LLC | CA | $213.8M | 5.6M | 0 |
| 22 | Labone LLC | KS | $212.3M | 15.3M | 0 |
| 23 | Quest Diagnostics Clinical Laboratories INC | GA | $211.1M | 19.6M | 0 |
| 24 | Quest Diagnostics LLC | MA | $209.7M | 45.9M | 0 |
| 25 | Physicians Group Laboratories, LLC | LA | $208.1M | 4.6M | 0 |
| 26 | Quest Diagnostics Massachusetts LLC | MA | $199.9M | 17.5M | 0 |
| 27 | Northwell Health Laboratories | NY | $198.2M | 10.6M | 0 |
| 28 | Quest Diagnostics Clinical Laboratories INC | FL | $197.6M | 24.3M | 0 |
| 29 | Aegis Sciences Corporation | TN | $193.8M | 7.4M | 0 |
| 30 | Laboratory Corporation of America | WA | $186.7M | 17.1M | 0 |
| 31 | Healthtrackrx Indiana, INC | TX | $186.0M | 6.7M | 0 |
| 32 | Accu Reference Medical Lab, LLC | NJ | $183.0M | 12.0M | 0 |
| 33 | Genetic Disease Screening Program State of CA | CA | $182.5M | 926K | 0 |
| 34 | Laboratory Corporation of America | FL | $171.1M | 37.6M | 0 |
| 35 | Labone of Ohio INC | OH | $167.2M | 11.9M | 0 |
| 36 | Clinical Pathology Laboratories, Inc. | TX | $159.4M | 17.8M | 0 |
| 37 | Laboratory Corporation of America | CA | $147.1M | 64.4M | 0 |
| 38 | Myriad Women's Health, Inc. | CA | $147.0M | 1.3M | 0 |
| 39 | Southern Ohio Medical Center | OH | $145.3M | 3.5M | 0 |
| 40 | Eurofins Diatherix Laboratories LLC | AL | $145.1M | 4.7M | 0 |
| 41 | Empire City Laboratories, INC | NY | $143.0M | 13.6M | 0 |
| 42 | Unilab Corporation | CA | $141.2M | 29.5M | 0 |
| 43 | Infinity Diagnostics Laboratory INC | NJ | $138.0M | 5.2M | 0 |
| 44 | Invitae Corporation | CA | $136.7M | 996K | 0 |
| 45 | Quest Diagnostics of Pennsylvania, Inc. | PA | $132.4M | 11.2M | 0 |
| 46 | Myriad Genetic Laboratories, Inc. | UT | $124.8M | 386K | 0 |
| 47 | West Virginia University Hospitals, INC | WV | $124.1M | 2.9M | 0 |
| 48 | Quest Diagnostics Incorporated MD | MD | $121.8M | 8.3M | 0 |
| 49 | Gravity Diagnostics, LLC | KY | $116.2M | 3.8M | 0 |
| 50 | Laboratory Corporation of America | TX | $103.8M | 11.1M | 0 |
| 51 | Quest Diagnostics Venture LLC | PA | $96.0M | 3.6M | 0 |
| 52 | Gentech Laboratories LLC | TX | $91.8M | 1.1M | 0 |
| 53 | Bexar County Hospital District | TX | $91.6M | 2.1M | 0 |
| 54 | Fulgent Therapeutics Llc. | CA | $84.9M | 2.3M | 0 |
| 55 | Bureau of Public Health Laboratories | FL | $81.7M | 9.1M | 0 |
| 56 | Permanente Medical Group, Inc. | CA | $51.1M | 9.9M | 0 |
| 57 | Signal Diagnostics LLC | CA | $40.8M | 1.3M | 0 |
| 58 | Tricore Inc. | NM | $35.8M | 1.8M | 0 |
| 59 | Wellnow Urgent Care, P.c. | NY | $33.1M | 690K | 0 |
| 60 | Permanente Medical Group Inc. | CA | $31.4M | 3.2M | 0 |
| 61 | Adventist Health System-sunbelt INC | FL | $28.3M | 638K | 0 |
| 62 | Mvml Inc. | CA | $27.5M | 576K | 0 |
| 63 | Inspire Diagnostics LLC | CA | $23.1M | 628K | 0 |
| 64 | Helix, Inc. | CA | $22.7M | 629K | 0 |
| 65 | US Medical Labs INC | IL | $12.5M | 149K | 0 |
| 66 | United Eg LLC | IL | $11.1M | 140K | 0 |
| 67 | Cl Labs Inc. | IL | $11.0M | 248K | 0 |
| 68 | Mmm Diagnostic Center INC | IL | $10.9M | 126K | 0 |
| 69 | Zam Labs LLC | IL | $9.0M | 221K | 0 |
| 70 | Lifeline Biosciences LLC | IL | $7.3M | 49K | 0 |
| 71 | Sh Diagnostics INC | IL | $5.9M | 52K | 0 |
| 72 | Asterlation INC | IL | $4.9M | 40K | 0 |
| 73 | Discovery Diagnostic Laboratory Inc | MA | $698K | 11K | 4,387 |
| 74 | Laboratory Service Partners Llc | CO | $384K | 9,411 | 3,688 |
| 75 | Dominion Diagnostics Llc | NC | $338K | 5,418 | 3,549 |
| 76 | Jds Labs Llc | TX | $312K | 6,880 | 3,637 |
| 77 | Optimal Lab Inc | NJ | $242K | 7,238 | 4,404 |
| 78 | Visigene Llc | IL | $240K | 5,924 | 2,982 |
| 79 | Crystal Lab Works LLC | IL | $192K | 5,276 | 1,845 |
| 80 | Salient Diagnostics, Llc | CO | $188K | 1,872 | 1,033 |
| 81 | Advanced Clinical Solution INC | NJ | $179K | 4,862 | 2,364 |
| 82 | Addiction Labs Of America, Llc | TN | $141K | 2,817 | 2,056 |
| 83 | Clinical Enterprise Inc | MA | $127K | 2,379 | 2,166 |
| 84 | Apex Labs Inc | IL | $123K | 1,798 | 1,151 |
| 85 | Boots Diagnostic Lab, Inc | MD | $111K | 1,887 | 989 |
| 86 | Merso Labs Inc. | CA | $62K | 2,561 | 1,482 |
| 87 | Rapid Results Diagnostics Llc | AR | $53K | 4,240 | 2,466 |
| 88 | First Choice Laboratory LLC | FL | $34K | 2,873 | 1,709 |
| 89 | Golden Star Labs LLC | CA | $0 | 0 | 0 |
| 90 | USA Biosciences LLC | CA | $0 | 0 | 0 |