About Us

Experienced in the stone industry for decades, we have had the honor of working with America's leading architects, designers, installers, building contractors, dealers and distributors. As a trusted slate slab supplier, Porto Slate Importers was created out of a passion to bring a durable, unique slate from Portugal.

VALONGO BLACK™ Slate is suitable for a multitude of applications, giving our clients a cutting-edge, supreme, 100% durable stone for their one-of-a-kind projects. Our premium black slate slabs from Portugal are designed to endure all elements while delivering unmatched aesthetic appeal.

Our vast knowledge and commitment to excellence in natural stone and its quality is what we have built our reputation on. As a reliable slate slab supplier, our focus on quality, durability, and customer satisfaction remains our core mantra.

Porto Slate Importers is proud to be the EXCLUSIVE importers of VALONGO BLACK™ Slate and beyond excited to offer our VALONGO BLACK™ slate slabs, pavers, tile, stair treads and custom cut to size, to you. As a dedicated slate stone supplier sourcing directly from Portugal, Porto Slate Importers is a new company with tremendous commitment and capability.