| Caproiciproducens reaktori | Type Strain | ATCC® TSD-283™ | April 28, 2023 | 3.9 Mb | | |
| Clostridium acetobutylicum | | ATCC® 4259™ | March 5, 2024 | 4.1 Mb | | |
| Clostridium acetobutylicum | Type Strain | ATCC® 824™ | February 26, 2020 | 4.1 Mb | | |
| Clostridium beijerinckii | MSA Component | ATCC® 35702™ | May 1, 2020 | 6.0 Mb | | |
| Clostridium beijerinckii | | ATCC® 51743™ | June 3, 2024 | 6.0 Mb | | |
| Clostridium beijerinckii | | ATCC® 8260™ | September 5, 2023 | 6.5 Mb | | |
| Clostridium butyricum | Type Strain | ATCC® 19398™ | February 1, 2024 | 4.7 Mb | | |
| Clostridium cadaveris | Type Strain | ATCC® 25783™ | November 26, 2024 | 3.4 Mb | | |
| Clostridium carnis | Type Strain | ATCC® 25777™ | September 4, 2024 | 3.1 Mb | | |
| Clostridium cellulovorans | Type Strain | ATCC® 35296™ | April 29, 2024 | 5.3 Mb | | |
| Clostridium chauvoei | Type Strain | ATCC® 10092™ | June 3, 2024 | 2.9 Mb | | |
| Clostridium chauvoei | | ATCC® 11956™ | April 29, 2024 | 2.9 Mb | | |
| Clostridium haemolyticum | Type Strain | ATCC® 9650™ | November 30, 2023 | 2.7 Mb | | |
| Clostridium lacusfryxellense | Type Strain | ATCC® BAA-580™ | November 26, 2024 | 5.8 Mb | | |
| Clostridium ljungdahlii | Type Strain | ATCC® BAA-3217™ | June 1, 2023 | 4.6 Mb | | |
| Clostridium malenominatum | Type Strain | ATCC® 25776™ | October 30, 2024 | 3.4 Mb | | |
| Clostridium novyi | | ATCC® 19402™ | April 29, 2024 | 2.5 Mb | | |
| Clostridium novyi | | ATCC® 25758™ | April 29, 2024 | 2.5 Mb | | |
| Clostridium paraputrificum | Type Strain | ATCC® 25780™ | March 5, 2024 | 3.6 Mb | | |
| Clostridium pasteurianum | Type Strain | ATCC® 6013™ | February 26, 2020 | 4.4 Mb | | |
| Clostridium perfringens | | ATCC® 12924™ | March 24, 2025 | 3.1 Mb | | |
| Clostridium perfringens | | ATCC® 12917™ | November 30, 2023 | 3.0 Mb | | |
| Clostridium perfringens | | ATCC® 3624™ | June 1, 2023 | 3.2 Mb | | |
| Clostridium perfringens | | ATCC® 12916™ | September 2, 2021 | 3.0 Mb | | |
| Clostridium perfringens | | ATCC® 51880™ | April 29, 2024 | 3.6 Mb | | |
| Clostridium perfringens | | ATCC® 10543™ | July 1, 2021 | 3.4 Mb | | |
| Clostridium perfringens | | ATCC® 3629™ | June 3, 2024 | 3.3 Mb | | |
| Clostridium perfringens | | ATCC® 19574™ | November 30, 2023 | 3.3 Mb | | |
| Clostridium perfringens | | ATCC® 17874™ | March 1, 2021 | 3.0 Mb | | |
| Clostridium perfringens | | ATCC® 3626™ | December 23, 2021 | 3.8 Mb | | |