Welcome to Sigil, Guardians of Brand Integrity

In ancient traditions, a sigil (pronounced sih-jil) is an inscribed or painted symbol considered to have magical power.

Today’s brand logos carry similar weight – they inspire, convey trust, and hold real power. For the brands we love, that power can indeed feel magical. We believe that branding and logos are the modern sigils, and we’re here to protect their power and integrity in the digital marketplace.

Our journey began when Sigil’s CEO, Zac Garthe, an Intellectual Property Attorney, witnessed the devastating impact of unauthorized sellers while working in-house with a brand. As hundreds of unauthorized seller notifications flooded in, the brand lost its buy-box position and faced severe price erosion, nearly going out of business.

Zac collaborated with Amazon’s general counsel to help shape their intellectual property policies and found effective methods to combat these sellers, but the solutions were prohibitively expensive. This revelation inspired the creation of Sigil—a platform that distills decades of IP legal expertise into a streamlined, one-click solution that delivers lawyer-quality brand protection at a fraction of the cost.