Hi,

Another approach would be something like this:

Employer: XYZ Consultancy Partnership [October 2000 - Date]

Position: Contract Project Manager (add others here if there is more than one)

Duties: Managing projects through the full development cycle (....etc.)

Business Sectors:

Finance: 6 months
Defence: 36 Months
Insurance: 12 Months
Retail: 12 months (ongoing)

This is if you want to mention the company you actually worked for. For example they might be well known and respected, and they are the ones who can confirm your continued employment throughout the period.