| Rank |
Company |
Revenue
($ millions) |
Assets |
| # 1 |
AECOM |
10,589 |
14,253 |
| # 2 |
IQVIA Holdings Inc. |
5,460 |
3,306 |
| # 3 |
CH2M HILL COMPANIES LTD |
5,413 |
2,941 |
| # 4 |
Booz Allen Hamilton Holding Corporation |
5,333 |
2,832 |
| # 5 |
Towers Watson & Co |
3,502 |
5,337 |
| # 6 |
Paychex Inc. |
2,644 |
6,275 |
| # 7 |
Terminix Global Holdings, Inc. |
2,457 |
5,134 |
| # 8 |
Tetra Tech Inc. |
2,419 |
1,696 |
| # 9 |
Parexel International Corp |
2,312 |
1,761 |
| # 10 |
Genpact Limited |
2,279 |
2,743 |
| # 11 |
Gartner Inc. |
2,021 |
1,904 |
| # 12 |
ManTech International Corporation |
1,774 |
1,487 |
| # 13 |
FTI Consulting Inc. |
1,756 |
2,431 |
| # 14 |
Engility Holdings Inc |
1,367 |
1,123 |
| # 15 |
Charles River Laboratories International Inc. |
1,298 |
1,885 |
| # 16 |
V2X Inc. |
1,203 |
499 |
| # 17 |
Syneos Health, Inc. |
1,179 |
1,245 |
| # 18 |
ICF International Inc. |
1,050 |
1,110 |
| # 19 |
Premier Inc. |
940 |
1,432 |
| # 20 |
CEB INC. |
909 |
1,357 |
| # 21 |
Huron Consulting Group Inc. |
889 |
1,156 |
| # 22 |
Navigant Consulting, Inc. |
860 |
903 |
| # 23 |
ALION SCIENCE & TECHNOLOGY CORP |
805 |
604 |
| # 24 |
Mistras Group Inc |
704 |
532 |
| # 25 |
Hill International, Inc. |
640 |
465 |
| # 26 |
Advisory Board Co |
604 |
2,070 |
| # 27 |
Incyte Corp. |
511 |
830 |
| # 28 |
VSE Corporation |
424 |
355 |
| # 29 |
TRC Companies Inc |
375 |
342 |
| # 30 |
Forrester Research Inc. |
312 |
333 |
| # 31 |
Exponent Inc. |
305 |
365 |
| # 32 |
Albany Molecular Research Inc |
277 |
520 |
| # 33 |
Hackett Group Inc (The). |
237 |
153 |
| # 34 |
R1 RCM Inc. |
210 |
446 |
| # 35 |
Franklin Covey Company |
210 |
192 |
| # 36 |
Information Services Group Inc. |
210 |
134 |
| # 37 |
PRGX Global, Inc. |
164 |
103 |
| # 38 |
ECOLOGY & ENVIRONMENT INC |
126 |
68 |
| # 39 |
Versar Inc |
118 |
67 |
| # 40 |
Mastech Digital Inc |
114 |
20 |
| # 41 |
Willdan Group Inc. |
108 |
55 |
| # 42 |
ENGlobal Corporation |
108 |
52 |
| # 43 |
National Research Corporation |
99 |
130 |
| # 44 |
NeoGenomics Inc. |
92 |
81 |
| # 45 |
Dyax Corp |
82 |
217 |
| # 46 |
Medytox Solutions Inc |
77 |
36 |
| # 47 |
Wilhelmina International Inc. |
77 |
43 |
| # 48 |
CARTESIAN, INC. |
72 |
42 |
| # 49 |
TSS, Inc. |
28 |
10 |
| # 50 |
Senomyx Inc |
28 |
38 |
| # 51 |
Pharma-Bio Serv, Inc. |
26 |
23 |
| # 52 |
Astrana Health Inc. |
26 |
15 |
| # 53 |
Inotiv Inc. |
24 |
24 |
| # 54 |
Luna Innovations Incorporated |
21 |
28 |
| # 55 |
root9B Holdings, Inc. |
20 |
12 |
| # 56 |
Acorn Energy Inc |
20 |
30 |
| # 57 |
Correlate Energy Corp. |
16 |
16 |
| # 58 |
Juhl Energy Inc |
14 |
32 |
| # 59 |
Issuer Direct Corporation |
14 |
10 |
| # 60 |
6D GLOBAL TECHNOLOGIES, INC |
12 |
7 |
| # 61 |
Response Biomedical Corp |
11 |
14 |
| # 62 |
STWC Holdings, Inc. |
6 |
3 |
| # 63 |
Applied DNA Sciences Inc. |
3 |
5 |
| # 64 |
Monarch America, Inc |
3 |
0 |
| # 65 |
Ryvyl Inc. |
3 |
0 |
| # 66 |
Progressive Green Solutions, Inc. |
3 |
2 |
| # 67 |
Greenwood Hall, Inc. |
3 |
1 |
| # 68 |
Nordicus Partners Corp |
3 |
3 |
| # 69 |
U.S. Stem Cell, Inc. |
2 |
0 |
| # 70 |
AMERICAN HOUSING REIT INC. |
1 |
20 |
| # 71 |
Lightbridge Corporation |
1 |
6 |
| # 72 |
Veritec Inc |
1 |
0 |
| # 73 |
Daniels Corporate Advisory Company, Inc. |
1 |
0 |
| # 74 |
Quality Online Education Group Inc. |
1 |
9 |
| # 75 |
Hypha Labs, Inc. |
1 |
5 |
| # 76 |
ICAGEN, INC. |
1 |
8 |
| # 77 |
Argentum 47, Inc. |
1 |
0 |
| # 78 |
SOELLINGEN ADVISORY GROUP, INC. |
1 |
1 |
| # 79 |
Green Energy Management Services Holdings Inc |
0 |
0 |
| # 80 |
Galenfeha, Inc. |
0 |
1 |
| # 81 |
GBT Technologies Inc. |
0 |
0 |
| # 82 |
Af Ocean Investment Management Co |
0 |
1 |
| # 83 |
Hpil Holding |
0 |
8 |
| # 84 |
Infrastructure Developments Corp |
0 |
0 |
| # 85 |
TORtec Group Corp |
0 |
0 |
| # 86 |
1847 Holdings LLC |
0 |
0 |
| # 87 |
Nukkleus Inc. |
0 |
0 |
| # 88 |
CHUMA HOLDINGS, INC. |
0 |
1 |
| # 89 |
Phi Group Inc |
0 |
0 |
| # 90 |
Petrone Worldwide, Inc. |
0 |
0 |
| # 91 |
Global Tech Industries Group, Inc. |
0 |
0 |
| # 92 |
Flowerkist Skin Care & Cosmetics, Inc. |
0 |
0 |
| # 93 |
Taylor Consulting, Inc. |
0 |
0 |
| # 94 |
Frontera Group Inc. |
0 |
0 |
| # 95 |
CN Dragon Corp |
0 |
0 |
| # 96 |
APT Systems Inc. |
0 |
0 |
| # 97 |
Greenpro Capital Corp. |
0 |
1 |
| # 98 |
Axiom Oil & Gas Corp |
0 |
1 |
| # 99 |
SAND INTERNATIONAL INC |
0 |
0 |
| # 100 |
CD International Enterprises, Inc. |
(50) |
2 |