I got a call from Leslie Donaldson with exactly the same MO.

Caller ID shows up as 954-7364735

Callback # was 800-958-2763 x143

So this practice is apparently still alive and well

Nicole said she was from Mankua Gallagher. Left 2 messages at my work number with little info other than please return my call and she had a "question about one of my associates". Sketchy!

Called twice, I think the first time it was a robo-call as no one was there.  Then a call back, and I didn't answer.  No message left.

Wow - she's pretty slick. Called my office too - and was trying to find out if someone has started working for our company. DO NOT respond - she's RUDE and acts like she's someone you work with. SHADY!!!!

Called twice today.  Once this morning for 1 person and again this afternoon for me.  Wanted my email address.  Hung up after I asked who she was this morning.  This afternoon, she told me that her name was Renee and her boss was Glenn Joseph.

Woman by the name of Tammy Dixon said she was from a Science Conference! She left a phone number of 800-958-2763 x 1039 and a bogus YAHOO email address. What legitimate company uses Yahoo for email address? Come to find out she really is a recruiter. These people call businesses with quite a bit of information about the company and lie and try and get more info. So, they can recruit people from your company!
The company she was representing was: Mankuta Gallagher
http://www.mankutagallagher.com
BEWARE!!!!!

was a job recruiter telling me they got my name and number from a confidential source - no, you bought it from a conference list