Contractor Resources

Advance your tech career now thanks to our expert industry knowledge and proud, long-standing partnerships with clients.

Contractor Resources and ISR Partners

ISR have over 19 years’ experience of placing contractors. We have built a network of trusted partners and adopt the very latest, legally compliant contracts and processes, especially in relation to Outside IR35 engagements. 

The majority of our engagements fall Outside IR35 due to the education and support we give clients in helping them understand the nuances and advantages of an Outside IR35 engagement, whilst simultaneously offering a fully compliant, insured service provided by our Partners.  

"...the latest, legally compliant contracts and processes..."


For all of your Limited Company insurance requirements we recommend Kingsbridge. They can help source the following cover:

  • Public Liability
  • Employers Liability
  • Professional Indemnity
  • IR35 Protect (underwritten via a Kingsbridge IR35 SDS assessment)

Existing ISR contractors qualify for a 10% discount.


ISR partner with APSCo in relation to IR35. Founded in 1999, in reaction to the original IR35 legislation they work with HMRC and Westminster, representing Contractors and Employment Agency views and provide the Employment Agency sector with the very latest advice and contractual documentation to reflect the latest developments in IR35

ISR have been members of APSCo for over 10 years and follow a “best in class” process for Outside IR35 engagements. If you have a simple or complex query question regarding IR35 we can help.

Useful documents regarding IR35 below:


Umbrella Companies

ISR operate a preferred supplier list of Umbrella solution providers. Each provider is FCA accredited and has been audited, along with having a proven track record of excellent customer service:




Timesheets and Payment


Payment Schedules

You may download our payment schedules here.

Blank Timesheet

You can now manage your timesheet by downloading it here.

Download Timesheet

Upload Your CV or LinkedIn Profile URL

Let us do the hard work for you. Upload your CV or provide your LinkedIn profile and we will match you to suitable jobs in your field of expertise.

Don't just take our word for it

ISR has been trusted by their clients with their business recruitment needs and objectives over the last 18 years, and a number of them have shared their thoughts on their experience with us.

We truly value the feedback we receive from our clients, as it is a testament to the recruitment support we are dedicated to providing.


Get in touch with ISR

Interested to hear what we can do for you or your organisation? We would love to hear from you.


+44 161 973 2533


+44 203 872 6600

Get in Touch