Helped by initial seed money from UCL Business, Endomag has continued to develop its magnetic sensing technologies to improve minimally invasive procedures for oncologists.

[9] Endomag's Sentimag probe is a sensitive magnetometer which detects either an implantable magnetic marker, Magseed, or an injectable superparamagnetic iron oxide nanoparticle tracer, branded Magtrace.

The company's magnetic probe can indicate the distance from the Magseed marker, which helps guide the surgical excision of the cancerous tumor.

[11] Endomag's Magseed marker product has received FDA 510(k) clearance for localizing tumors in soft tissue in 2016[12] and its Magtrace and Sentimag Magnetic Localization System received FDA premarket approval (PMA) in 2018 to identify and remove sentinel lymph nodes in women undergoing mastectomy for breast cancer.

In October 2018 the company received a Business Innovation Award from the Institute of Physics for its use of magnetism for minimally invasive surgical guidance.