A group of masons is commonly called a Company. Other collective nouns you may see include Hand and Labour.
A collective noun for masons is a "guild" or a "brotherhood". These terms refer to a collective group or organization of skilled and experienced masons who share a common passion and expertise in the craft of masonry. These masons come together to collaborate, learn from one another, and preserve and enhance the traditions and skills of their trade. The guild or brotherhood symbolizes their sense of camaraderie and shared purpose in refining and beautifying the architectural landscape through craftsmanship and meticulous attention to detail. Collectively, they bring the finest masonry techniques and expertise to construction projects, ensuring the enduring quality and beauty of structures for generations to admire and rely upon.
Known collective nouns for Masons include: