As social media becomes an increasingly important business tool, a growing number of CIOs are making use of Twitter to highlight their technology and business passions. Here is our (by no means exhaustive) list of 50 leading tech chiefs who tweet regularly and are worth following:

PUBLIC SECTOR

Casey Coleman, CIO, US General Services Administration
John Suffolk, CIO, UK government
Jeremy Godfrey, CIO, Hong Kong government
Linda Cureton, CIO, NASA
Rick Holgate, CIO, US Bureau of Alcohol, Tobacco, Firearms and Explosives
James Gardner, CTO, UK Department of Work and Pensions
Brett Bobley, CIO, USA National Endowment for the Humanities
Andrew Hoppin, CIO, New York State Senate
Bill Schrier, CTO, City of Seattle
Anupam Saraph, CIO, City of Pune, India
Chris Vein, CIO, City of San Francisco
Chris Kemp, CIO, NASA Ames Research Center

TECHNOLOGY & MEDIA

Padmasree Warrior, CTO, Cisco
Adrian R Haas, International CIO, Sony
David Buckholtz, VP, Enterprise & Corporate Technology, Sony Pictures
Oliver Bussmann, CIO, SAP
George Orlov, CIO & CTO, Forrester Research
Paul Cheesbrough, CIO, Telegraph Media Group

TRANSPORTATION & LOGISTICS

Paul Coby, CIO, British Airways
Alexandro Strack, CIO, Gefco Logistica do Brasil

ENGINEERING, CONSTRUCTION & ENERGY

Chuck Musciano, CIO, Martin Martietta Materials
Dave Patzwald, VP of IT, Schneider Electric
Mike Schaffner, Director of IT, Cameron
Steve Haag, VP & technology officer, HNTB Infrastructure
Andres Carvallo, CIO, Austin Energy
Katherine Coombs, CIO, Morrison Facilities Service

CONSUMER GOODS & RETAIL

Ramon Baez, CIO, Kimberley-Clark
Stephen Gillett, CIO, Starbucks
Nick Lansley, head of R&D, Tesco.com
Steve Berg, IT Manager, Ray White Real Estate

CHEMICALS & PHARMACEUTICALS

Kurt de Ruwe, CIO, Bayer MaterialScience
Bill Thomson, CIO, Infineum
Christopher Petersen, CIO, Assay Depot

PROFESSIONAL SERVICES

Bryan Ackermann, CIO N America, Adecco
Peter Birley, IT director, Browne Jacobson LLP
Mark Cummata, CIO, JobAngels

FINANCE

Ian Cohen, CIO, Jardine Lloyd Thompson Group
William Weeks, SVP & CIO, Key Equipment Finance (Key Bank)
Greg Jaros, CIO, PayNet
Hubert Vaudaux, CIO, Groupe Francois Bernard

HEALTHCARE

Mark Silver, Health Services Division at Siemens HealthCare USA
Thomas Druby, Enterprise CIO, Blue Cross of NE Pennsylvania
Doug Menefee, CIO, Schumacher Group
Will Weider, CIO, Ministry Health Care and Affinity Health System

EDUCATION

Anne Agee, CIO, University of Massachusetts, Boston
Pablo Molina, CIO, Georgetown University
Andrew Abboud, CIO, City University, London
Jerome Coignard, CIO, Crossknowledge
Peter Nikoletatos, CIO, Curtin University of Technology
Marc Bailey, CIO, Macquarie University

Do you know any more tweeting CIOs we should add to the list? Please let us know by commenting below.

See also our updated list of active CIO bloggers.

You can also follow i-cio.com on Twitter, where we will regularly alert you to content updates on this site.