British Chambers of Commerce
http://www.chamberonline.co.uk
May help you find your local COC, but as many chambers are not accredited, it may not.
Confederation of British Industry
http://www.cbi.org.uk
The CBI works with Government, international legislators and policy-makers to help UK businesses compete effectively.
Employers for Work-Life Balance
http://www.employersforwork-lifebalance.org.uk/
Cleanly designed site run by The Work Foundation that aims to help organisations implement and sustain work-life balance strategies. Plenty of excellent freely downloadable information, such as surveys, and you can also buy reports and books. It tells you how you can build a business case for work-life balance and features a handy problem solver and jargon buster.
Institute of Directors
http://www.iod.co.uk
Get a director's view of business here.
Institute of Payroll & Pensions Management
http://www.ippm.org
Mission: "To promote excellence in the payroll and pensions professions".
Interim Management Association
http://www.interimmanagement.uk.com
The Interim Management Association (formerly the ATIES, or Association of Temporary and Interim Executive Services), is the trade body created to maintain the highest professional and ethical standards in the provision of interim management services.
Investors in People
http://www.iipuk.co.uk
Investors in People UK was established in 1993 to provide national ownership of the Investors in People Standard and is responsible for its promotion and branding, quality assurance and development.
Stressbusting
http://www.stressbusting.co.uk
Whether you're a stressed HR professional or dealing with workplace stress within your organisation, this is definitely worth a bookmark. Lots of substantial articles on issues such as presenteeism and the cost of stress at work.
The Institute of IT Training
http://www.iitt.org.uk
Contains useful stuff such as organisational standards and competence frameworks for online trainers.
The Work Foundation
http://www.theworkfoundation.com
Formerly The Industrial Society, The Work Foundation's purpose is to improve working life. The website is mostly for members, but contains useful information about reports, materials and projects.
World Federation of Personnel Management Associations
http://www.wfpma.com
The WFPMA represents around 50 national personnel associations and 300,000 personnel professionals worldwide. Track down associations from Argentina to Venezuela.