Since all of their business is in rentals they probably acquired trademark assets when they signed agreements with companies such as Perry Slingsby to market and rent their products. They do have a line of ROV tools but they all appear to be manufactured by someone else.
From Mako's website:
Mako Technologies has ROV clamps and ROV friendly hooks and shackles available, click on the slideshow pictures for larger images or here for clamp specifcations.
Mako Technologies new line of ROV tools, includes equipment that is smaller, lighter and more reliable than older systems. For example, Mako’s new torque tool, designed and built by OceanWorks Intl., is state-of-the-art in torque tool design. The Mako Torque Tool is compliant with API17D & H standards and provides the operator with a single tool with the capability to cover all four classes of torque rating (1 to 4), up to a maximum of 2,000 ft. lbs.