| Chief Master Sergeant of the Space Force | |
|---|---|
CMSSF service cap badge | |
CMSSF flag | |
| United States Space Force Space Staff | |
| Style | Chief |
| Type | Senior enlisted advisor |
| Abbreviation | CMSSF |
| Member of | TheSpace Staff |
| Reports to | Chief of Space Operations |
| Residence | Joint Base Andrews,Maryland[1] |
| Appointer | Chief of Space Operations |
| Formation | 3 April 2020 |
| First holder | Roger A. Towberman |
| Salary | $10,758.00 per month, regardless of the incumbent's service longevity[2] |
| Website | Official Website |
Thechief master sergeant of the Space Force (CMSSF) is thesenior enlisted advisor to thechief of space operations and thesecretary of the Air Force. The chief master sergeant of the Space Force is the most seniorenlisted guardian in theU.S. Space Force, unless anenlisted guardian is serving as thesenior enlisted advisor to the chairman.[3]
Thechief of space operations appoints the chief master sergeant of the Space Force and is designated a specialpaygrade aboveE-9. To be appointed, the appointee must have at least 22 years of service and must have been a chief master sergeant for at least three years.[4]
The chief master sergeant of the Space Force is the highest noncommissioned officer in the Space Force. The chief serves as the senior enlisted advisor to both the chief of space operations and the secretary of the Air Force on all matters regarding the welfare, readiness, morale, proper utilization, and progress of Space Force enlisted members and their families.[3]
The inaugural chief master sergeant of the Space Force, Chief Master Sergeant Roger A. Towberman, was sworn in on 3 April 2020, having previously served as the command chief master sergeant of theAir Force Space Command, and concurrently serving as the senior enlisted leader of theUnited States Space Command. In addition to being the first chief master sergeant of the Space Force, he is also the second member of the Space Force and its first enlisted member.[3]
The position was originally known as thesenior enlisted advisor of the Space Force (SEASF) from 3 April 2020 until it was renamed on 1 February 2021 tochief master sergeant of the Space Force (CMSSF).[5]
In 2023, five chief master sergeants were considered to replace Towberman who is slated to retire. They went through a series of tests, which included an interview by an occupational psychologist, a mock U.S. Congress testimony, a mock town hall with airmen, and an interview with senior Space Force officials, that would guide GeneralB. Chance Saltzman's selection.[4] On May 5, 2023, Saltzman selectedJohn F. Bentivegna to replace Towberman and serve as the second chief master sergeant of the Space Force. His assignment was announced on May 8, 2023.[6]
The first rank insignia worn by the chief master sergeant of the Space Force, was based upon the rank insignia of the Air Force'schief master sergeant rank insignia, with other components, such as the two stars, designed to be consistent with the senior enlisted advisor rank of the other services. The delta, orbit, and globe elements at the center of the rank were taken from theseal of the United States Space Force. However, unlike the insignia of theChief Master Sergeant of the Air Force which has a Laurel wreath around the central star within the rockers, the CMSSF insignia does not.[3] On 20 September 2021, new insignia for all enlisted in the Space Force was introduced, including the CMSSF.[7][8][9]

| No. | Portrait | Name | Term | Chief of Space Operations | Ref. | |||
|---|---|---|---|---|---|---|---|---|
| Took office | Left office | Duration | ||||||
| 1 | Chief Master Sergeant Roger A. Towberman (born 1967/1968) | 3 April 2020 | 15 September 2023 | 3 years, 165 days | John W. Raymond B. Chance Saltzman | [3][10] | ||
| 2 | Chief Master Sergeant John F. Bentivegna (bornc. 1976) | 15 September 2023 | Incumbent | 2 years, 35 days | B. Chance Saltzman | [11] | ||

Former chief master sergeants of the Space Force have portraits on permanent display inthe Pentagon.[12]