citing company yearly reports in papers
One alternative would be to use a corporate author. 

Using Harvard referencing for an undergraduate course I did a few years ago I cited annual reports like this with no problems.

Taylor Wimpey, 2014. The Taylor Wimpey Annual Report, High Wycombe: Taylor Wimpey.

The Berkeley Group, 2014. The Berkeley Group Annual Report 2014, Cobham: The Berkeley Group.

Standard Life Investments, 2015. The UK Stewardship Code- Compliance and Contacts. [Online]
Available at:
http://www.standardlifeinvestments.com/governance_and_stewardship/the_uk_stewardship_code
/index.html
[Accessed 15 March 2015].

Key Note Reports, 2015. Bellway PLC. [Online]
Available at: https://www.keynote.co.uk/company-report/ownership/01372603
[Accessed 3 March 2015].

If it is a team of authors and you are adamant to put an author if there are many authors the Harvard system allows you to put Smith et al. even in the even reference list. 

Microsoft word is great for references and should not be overlooked for a simple and effective referencing tool.