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Team Page


Concentric has an experienced management
team creating innovative services
for business and individual consumers.
Henry "Hank" Nothhaft, Vice Chairman of the Board Nextlink, President & CEO of Concentric.
Hank R. Nothhaft joined Concentric as President and Chief Executive Officer in May 1995.
Michael Anthofer, Senior Vice President of Finance & Administration
Michael F. Anthofer joined Concentric in January 1996 as Vice President and Chief Financial Officer.
Laurence Blackall, Senior Vice President & President of Concentric Europe.
Laurence Blackall joined Concentric in January 2000 as Senior Vice President and President of Concentric Europe.
William "Bill" Etheredge, Senior VP of Sales
William C. Etheredge joined Concentric in March 1997 as the Senior Vice President of Sales.
Mark Fisher, Senior VP of Marketing
Mark W. Fisher was named Senior VP, General Manager, Network Services Division in 1998..
Les Hamilton, Senior VP of Network Operations & Engineering,
Les Hamilton joined Concentric in April 1999.
George Carr, VP of Sales, Strategic Accounts
George D. Carr became Vice President of Sales, Strategic Accounts in November 1998.
Eileen Curtis, Senior VP of Customer Relations
Eileen A. Curtis joined Concentric in November 1994 as the Customer Relations Manager.
Connie DeWitt, VP of SMB Marketing
Connie DeWitt joined Concentric in April 1997 as a Product Line Manager.
Donn Dobkin, VP, Engineering Products & Systems
Donn Dobkin was named Vice President of Information Systems in March 1999.
Dave Griffeth, Vice President & Controller
Dave Griffeth joined Concentric in March 1996 as Corporate Controller...
Robert Grosso, VP of North American Sales
Robert Grosso joined Concentric in October 1998 as Vice President of North American Sales.
Pat Hamb, VP, Sales Operations
Pat Hamb joined Concentric in December 1996 as Director of Sales Operations...
James L. Isaacs, VP of Business Development
James L. Isaacs joined Concentric in October 1995 as the Director of Product Management.
Martin Levy, VP, Internet Technology
Martin levy was named VP of Internet Technology in July of 1998.
David Schairer, Vice President of Systems Architecture
David Schairer joined Concentric in May 1994 when the company was based in Michigan.
Fred Schreiber, VP of Human Resources
Fred J. Schreiber joined Concentric in February 1998 as Vice President of Human Resources.
Bob Swedroe, VP of Financial Planning
Bob Swedroe joined Concentric in March 1999.
Alan M. Warshaw, VP of Enterprise Marketing
Alan M. Warshaw joined Concentric in late 1998.


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