Seems to be roughly even, with somewhat more TSA PreCheck-only members than Global Entry members (including NEXUS and SENTRI).
As of March 2023, TSA said [1]: "TSA PreCheck® application program has surpassed 15 million active members" and "Thirty-two million travelers now benefit from TSA PreCheck expedited screening after being vetted though TSA PreCheck ®, U.S. Customs and Border Protection’s Global Entry or another federal vetting program."
As of September 2023, CBP announced stated that there were over 12 million Global Entry members in a press release. [2]
This appears to include SENTRI and NEXUS members, since as of July 2022 it was stated: [3] "There are over 7.6 million participants enrolled directly in Global Entry, and over 1.8 million members of NEXUS and SENTRI that also receive Global Entry benefits."
As of March 2023, TSA said [1]: "TSA PreCheck® application program has surpassed 15 million active members" and "Thirty-two million travelers now benefit from TSA PreCheck expedited screening after being vetted though TSA PreCheck ®, U.S. Customs and Border Protection’s Global Entry or another federal vetting program."
As of September 2023, CBP announced stated that there were over 12 million Global Entry members in a press release. [2]
This appears to include SENTRI and NEXUS members, since as of July 2022 it was stated: [3] "There are over 7.6 million participants enrolled directly in Global Entry, and over 1.8 million members of NEXUS and SENTRI that also receive Global Entry benefits."
[1] https://www.tsa.gov/news/press/releases/2023/03/02/tsa-prech...
[2] https://www.cbp.gov/newsroom/national-media-release/cbp-anno...
[3] https://www.cbp.gov/sites/default/files/assets/documents/202...