Peer Training Group is one of Mark Berger's top competitors. Peer Training Group is a Private company that was founded in Randburg, Gauteng in 1994. Peer Training Group is in the Management Consulting Services field. Peer Training Group has 3 more employees vs. Mark Berger.
Thinksales Corporation is perceived as one of Mark Berger's biggest rivals. Thinksales Corporation was founded in 2010 in , . Thinksales Corporation operates in the Business Support Services industry. Thinksales Corporation generates $4.1M more revenue than Mark Berger.