Identity and purpose

Mission

To transform stone by embracing its inherent and natural character from a sustainability perspective, combining the mastery of craftsmanship with advanced technology to ensure the projects of architects, designers, and specifiers are truly unique.

Vision

We aspire to lead the development and manufacture of natural stone components for furniture, bathrooms, and lighting. We maintain a solid commitment to innovation, excellence in service, and the preservation of natural resources by maximising the use of stone waste and transforming offcuts into distinct, enduring pieces.

Values

We are committed to the total satisfaction of our clients and the respect for the people who make our work possible. We embrace social responsibility as fundamental, promoting equality and driving the circular economy in all our actions.

Crafting a Legacy of Excellence

Ongoing commitment to continuing education and personal development, balancing professional, family and personal life.

2007

Foundation

TCC WHITESTONE was founded by Sérgio Costa with the goal of representing and marketing marble slabs, establishing a strong presence in the ornamental stone market.

2013

Expansion

Decision to invest in kitchens, bathrooms and living objects—inspired by a family tradition in construction—and the start of developing exclusive designs based on the raw material.

2016

MAAMI HOME

Launch of the in-house brand MAAMI HOME, headquartered and manufactured in Vila Nova de Gaia, dedicated to minimalist marble furniture and accessory collections.

2013

Expansion

Decision to invest in kitchens, bathrooms and living objects—inspired by a family tradition in construction—and the start of developing exclusive designs based on the raw material.

2016

MAAMI HOME

Launch of the in-house brand MAAMI HOME, headquartered and manufactured in Vila Nova de Gaia, dedicated to minimalist marble furniture and accessory collections.

2026

Present

A multidisciplinary team of over 30 professionals: engineers, industrial designers, visual artists, historians, social scientists, managers, economists, plus specialists in robotics, traditional carpentry and blacksmithing.