Radial Velocity Standards

One of the latest and most complete lists of radial velocity standard stars is that by Soubiran et al. 2013, A&A, 552A, 64 (ADS link):

"The catalogue of radial velocity standard stars for Gaia. I. Pre-launch release."

This catalog contains 1420 stars with data over a baseline of over 6 yr,  with an overall stability of about 300 m/s

The data in their Table 4, can be accessed in the CDS service by click on this link.