IR35 Shield - Your IR35 Assessment Solution. Knowing exactly what your employment status is is critical for contractors and the businesses who hire them. IR35 Shield quickly and accurately assesses status in a matter of minutes, helping you, your business, and your contractors stay compliant with IR35. Shield is available for individual contractors, for recruiters on behalf of clients, and for whole businesses who need to assess their entire workforce. You can email us on info@IR35shield.co.uk