Mark Rabinowitz co-founded History & Conservation Associates, LLC in 2023.

He has decades of experience in the assessment, testing, and treatment, of major historic and artistic works in the US, Canada, Europe, and the Caribbean. First trained as a sculptor, he has worked on preservation of collections, monuments, sculptures, historic structures, fountains, industrial artifacts, and historic sites. Recent significant projects include: the laser cleaning and chemical consolidation of the the US Capitol; laser and steam cleaning of the Jefferson Memorial; restoration plans for the Paul Manship Celestial Sphere at the UN in Geneva Switzerland.

Significant structures and artifacts he has worked on include: George Washington’s Mount Vernon; the Carnegie Library, Washington, DC; and Astor Library, NYC, the Atlantis Space Shuttle in Cape Canaveral, Fl, A-12 CIA spy plane, and 2 Saturn V rockets, the Egyptian Obelisk in New York City, the US Capitol, US Dept. of Commerce, the US Dept. of Justice, Senate and House Office Buildings, and US Supreme Court buildings, Washington, DC. He was principal conservator for restoration of the exterior stonework at the West Block of the Canadian Houses of Parliament, Ottawa, CA.

Monuments include assessments and treatments of the Grant, Lincoln, Jefferson, and WWI Memorials on the National Mall, Ad Astra for the National Air & Space Museum, Washington Square Arch in NYC, monuments in Arlington and other National Cemeteries around the country.

Architectural elements include the restoration of major components of Louis Comfort Tiffany’s Laurelton Hall, dismantle and relocation of 3 carved mantels for the British Decorative Arts gallery, the All Angels pulpit and Lagrange Terrace Column for American Wing Courtyard at the Metropolitan Museum of Art and relocation and treatment of several outdoor sculptural fragments for the Brooklyn Museum, assessment, removal,treatment and installation of ancient mosaics and mediavel stonework from the Princeton University Art Museum, Toledo Art Museum, and the Cloisters.

He as treated or assessed buildings, collections, and works of art for The Metropolitan Museum of Art, The Cloisters Museum, The Brooklyn Museum, the Smithsonian Institute, The National Gallery of Art, Crystal Bridges Museum, The Morse Museum, The Hispanic Society Museum, The Mariner’s Museum, Princeton University Art Museum, Toledo Museum of Art, and The Ringling Museum.

Historic house museums he has worked in include: the Biltmore Estate, John D. Rockefeller’s Kykuit, Doris Duke’s Rough Point, Cheekwood Nashville, TN, Vizcaya Museum & Gardens, Miami, FL, The Ringling Museum of Art and the Ca d’Zan, Sarasota, FL,  Planting Fields, Long Island, NY.

Major public sculpture collections that have been assessed and treated include The City of New York Dept. of Parks, Columbia University, Perez Art Museum Miami, Cheekwood, Smithsonian Institution, National Air and Space Museum, Cities of Miami Beach, Jacksonville, FL, Asheville, NC, Alexandria, VA, Coral Gables and Palm Beach Gardens, FL.

Fountain assessments and restorations include those in City Hall Park, Madison Square Park, Central Park, Grand Army Plaza NYC, Cheekwood, Nashville, National Gallery of Art, Washington, DC, Biltmore, Asheville NC, Town of Palm Beach, FL, City of Coral Gables, FL, Town of Oak Bluff, MA, and private clients Newport, RI and elsewhere,

Collection care and management assessement and planning projects have included: City of Calgary, Canada public art, US Capitol campus metals, the collection of artifacts from the carving of Mount Rushmore, ND, assessment and planning for the archeological collection, California State Dept. of Parks, environmental conditions study and collection care assessment, Blair House, US State Dept, Washington DC, and others.

A graduate of The Rhode Island School of Design, his sculpture is held in private and public collections including the City of New York, Commune of Lasa, and Sant’ Ambrogio, Italy, and the Town of Greenwich, Connecticut.