William Tatham

William Tatham

Founder at
XJ Partners, Inc.
67 year
Technology Services
Consumer Services
Consumer Non-Durables

Profile

William M.
Tatham
was the founder of Janna Systems, Inc., founded in 1990, where the title held was Chairman & Chief Executive Officer from 1990 to 2000.
Dr. Tatham is the founder of XJ Partners, Inc., founded in 2000, holding the title of Director starting in 2001.
Dr. Tatham was the founder of NexJ Systems, Inc., founded in 2003, with the title of Director from 2020 to 2023.
Dr. Tatham is also the founder of The Canadian Association for People-Centred Health,Nexj Health, Inc...
Dr. Tatham is Executive Chairman at NexJ Health Holdings, Inc. Dr. Tatham is Chairman at Majik Systems, Inc. Dr. Tatham is Director at Stewards for Open Health Tools.
Dr. Tatham is President & Director at Tatham Family Holdings II Ltd. Dr. Tatham is Director at Expeflow, Inc. Dr. Tatham is Adjunct Professor at York University.
Dr. Tatham is Trustee at Tatham Children’s Trust.
Dr. Tatham was Executive Chairman at Bycast, Inc. Dr. Tatham was Vice Chairman-Governors Board at North York General Hospital.
Dr. Tatham was Independent Director at Elizabeth Arden, Inc. from 2011 to 2016.
Dr. Tatham was Vice President & General Manager at Siebel Systems, Inc. from 2000 to 2001.
Dr. Tatham was Member-Governors Board at The University of Waterloo.
Dr. Tatham was Member-Capital Campaign at The Michener Institute of Applied Health Sciences.
Dr. Tatham earned an undergraduate degree from The University of Waterloo in 1983.
Dr. Tatham earned a doctorate from The University of Waterloo in 2012.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
-.--%
2025-05-25 27,299,923 ( -.--% ) - $ Today

William Tatham active positions

CompaniesPositionStart
Founder 2000-12-31
Stewards for Open Health Tools
Director/Board Member 2011-06-08
Tatham Family Holdings II Ltd.
President -
Tatham Children’s Trust
Director/Board Member -
Chairman -
Founder -
Chairman -
Director/Board Member -
Corporate Officer/Principal -

Former positions of William Tatham

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See the detail of William Tatham's experience

Training of William Tatham

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

Connections

74

1st degree connections

18

1st degree companies

Male

Female

Members of the board

Executives

Linked companies

Private companies18

Technology Services

Consumer Non-Durables

Technology Services

Consumer Services

Consumer Services

Technology Services

Health Services

Technology Services

Commercial Services

Consumer Services

The Canadian Association for People-Centred Health

Stewards for Open Health Tools

Tatham Family Holdings II Ltd.

Tatham Children’s Trust

Technology Services

Technology Services

Technology Services

Technology Services

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