John Campbell

John Campbell

Director/Board Member at CASTELLUM, INC.

Net worth: 79 339 $ as of 2026-09-29

68 year
Commercial Services
Technology Services
Consumer Services

Profile

Currently, John F. Campbell holds the position of Co-President, Chief Executive Officer & Director at Rosetta Stone, Inc. He is also Chief Executive Officer for Cambium Learning Group, Inc. In his past career he held the position of Chief Operating Officer at S&P Global, Inc., Senior Vice President at ProQuest LLC, General Manager for Torgue Lifestyle Brands, Inc., General Manager for Insight Industries, Inc., Chief Operating Officer of Voyager Expanded Learning, Inc., Chief Operating Officer at Voyager Learning Co. and Technology Director at Tribune Education Co. Mr. Campbell received an undergraduate degree from the University of Pennsylvania.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
2026-03-19 126,537 ( 0.13% ) 79 339 $ 2026-09-29

John Campbell active positions

CompaniesPositionStart
CASTELLUM, INC. Director/Board Member 2022-10-11
Director/Board Member 2018-05-23
Chairman -
Director/Board Member -

Former positions of John Campbell

CompaniesPositionEnd
Chief Operating Officer 2009-12-30
Chief Operating Officer 2009-12-10
Corporate Officer/Principal 2006-12-31
Corporate Officer/Principal 1998-12-31
S&P GLOBAL, INC. Chief Operating Officer -
See the detail of John Campbell's experience

Education of John Campbell

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

Connections

64

1st degree connections

18

1st degree companies

Male

Female

Members of the board

Executives

Linked companies

Private companies18

Commercial Services

Technology Services

Consumer Services

Technology Services

Consumer Services

Technology Services

Commercial Services

Consumer Services

Consumer Services

Transportation

Technology Services

Commercial Services

Commercial Services

Health Services

Technology Services

Process Industries

Insight Industries, Inc.

Commercial Services