| 74482448 | CEC | CONSOLIDATED ENGINEERING COMPANY, INC. | 2002083 |
| 97021568 | CEC | Copper Hexagon, LLC | — |
| 97021561 | CEC | Copper Hexagon, LLC | 7985965 |
| 99638794 | CEC | FloWorks International LLC | — |
| 99572503 | CEC | Zhenyu Shao | — |
| 77512090 | CEC | American Culinary Federation | 3575614 |
| 78194067 | CEC | GRANT PRIDECO, INC. | 2994145 |
| 88457330 | CEC | Carolina Eastern, Inc. | 6301975 |
| 86871305 | CEC | CEC Industries Ltd. | 5044357 |
| 87608979 | CEC | CEC Corporation | 5877070 |
| 97021563 | CEC | Copper Hexagon, LLC | — |
| 87609056 | CEC | CEC Corporation | 5458290 |
| 78214843 | CEC | CREATIVE EDUCATIONAL CONCEPTS, LLC | 2866647 |
| 86884176 | CEC | Petram Enterprises Inc. | 5035667 |
| 97714127 | CEC | DSBWorldWide, Inc. | — |
| 73784039 | CEC | PETRAM ENTERPRISES INC. | 1572918 |
| 72358899 | CEC | AMERICAN COUNCIL OF ENGINEERING COMPANIES, INC. | 0906036 |
| 85647131 | CEC | SMS MEER GMBH | 4264684 |
| 85302599 | CEC | Go Green Swat Team, LLC | 4185026 |
| 85018246 | CEC | Constantine Logistics Limited | 4072670 |
| 85018202 | CEC | Constantine Logistics Limited | 4069349 |
| 87117332 | CEC | Foundation for Financial Education (F3E) | — |
| 77356977 | CEC | Claus Ettensberger Corporation | 3526783 |
| 77356961 | CEC | Claus Ettensberger Corporation | 3526782 |
| 77504293 | CEC | Aker Process Systems AS | — |
| 73281825 | CEC | City Equity Corp. | 1234847 |
| 78706924 | CEC | Lewris, Alinda | — |
| 77147089 | CEC | Maico-Diagnostic GmbH | 3380541 |
| 74434721 | CEC | CEC ELEVATOR CORPORATION | — |
| 85174339 | CEC | CEC Americas, Inc. | — |
| 78942846 | CEC | Black & Decker Corporation, The | 3641337 |
| 78605226 | CEC | The Corporate Executive Board Company | — |
| 78146897 | CEC | SMS MEER GMBH | 2773610 |
| 76492761 | CEC | AMERICAN CULINARY FEDERATION, INC. | — |
| 76250102 | CEC | Clarity, LLC | — |
| 75880942 | CEC | Boler Company, The | — |
| 75845398 | CEC | Continuing Episcopal Church, The | 2526625 |
| 75337368 | CEC | E-MYTH WORLDWIDE | 2199684 |
| 75314076 | CEC | Casson Engineering Company | — |
| 75214092 | CEC | Constellation Energy Corporation | — |
| 75115884 | CEC | Claus Ettensberger Corporation | 2143974 |
| 75115875 | CEC | Claus Ettensberger Corporation | 2145722 |
| 74456015 | CEC | CEC Products Co., Inc. | — |
| 74047443 | CEC | Crescent Electric Company, Inc. | — |
| 73739931 | CEC | COMMERCIAL EXPRESS CORPORATION | 1531308 |
| 73470765 | CEC | CEC INDUSTRIES, LTD. | 1418974 |
| 73391624 | CEC | CLARK ENERGY CORPORATION | — |
| 73386227 | CEC | TRANSAMERICA DELAVAL INC. | 1494602 |
| 73386177 | CEC | IMO INDUSTRIES INC. | 1249738 |
| 73213966 | CEC | Cashco Energy Corporation | 1151993 |