About Cajo Technologies Cajo Technologies produces innovative laser marking solutions for all industrial and branding purposes. Our systems are widely used e.g. in the fields of metal industry, product branding, cable and cable harness production, and medical industry. Our solutions cover all the needs for traceability and identification markings, including 2D markings (data matrix, QR codes, bar codes). In addition, our patented technology allows for colors on stainless steel with no additives or pigments needed.