Most companies are finding they need to do more to add protections for an expanding group of potential whistleblowers, as new regulations on retaliation against employees who raise concerns proliferate.

Not only have employers needed to comply with new whistleblower protections included in the Dodd-Frank Act administered by the Securities and Exchange Commission and the Commodities Futures Trading Commission, federal regulators have boosted protections for whistleblowers in existing programs. The Occupational Safety and Health Administration, for example, has significantly strengthened protections, says Beth Slavet, director of the agency's Whistleblower Protection Program. The agency has also beefed up enforcement, as OSHA ...