Walsh also said in his email that Phil Livingston, chief executive of LexisNexis marketing and business solutions, will be leaving the company, as a result of the joint venture.
Research and content giant LexisNexis employs some 3,600 people at a Miami Twp. campus.
A LexisNexis spokesman confirmed the layoffs, but did not say where they will be distributed or if any of the layoffs would be in the Dayton area.
The Martindale-Hubbell headquarters is in New Providence, N.J.