Alpharetta-based LexisNexis Risk Solutions, a provider of technology and analytics that help insurers and financial services companies assess risk and prevent fraud, said it is acquiring WorldCompliance, a company that specializes in screenings for terrorists and money-laundering.

LexisNexis said it will acquire the remaining 55 percent of Miami-based WorldCompliance that it doesn’t already own. Financial terms were not disclosed.

LexisNexis said WorldCompliances’ expertise will help the company more effectively screen more than 20 billion names a year against continuously updated global watchlists tied to money-laundering crimes and other terrorist acts.

WorldCompliance will expand LexisNexis’ customer reach in more than 150 countries, the companies said.

LexisNexis is a unit of Reed Elsevier, a global provider of information solutions. Elsevier obtained a 45 percent stake in WorldCompliance when it acquired Accuity Inc. in 2011.