Grubaugh & Seifert

GRUBAUGH & SEIFERT are Joseph Grubaugh and Sigrun Seifert ; working partners for more than 35 years. They have been  making and restoring violin family instruments in Petaluma, California in the San Francisco Bay Area since 1980 where they also raised their two children. Sigrun started her studies in violin making at the Mittenwald School of Violin Making in 1972 and graduated in 1976. Joseph graduated from Conservatory of Music at UOP in 1972 , then began work as a violin maker with Albert C. Muller. In 1977, both met at the Weisshaar shop where she had already worked for a year.

“At Weisshaar we loved the way the other tuned-in when helping and always sought out each other to assist with individual projects. Moving to San Francisco in 1979 we were soon commissioned to make a violin working together. This first effort fortified our mutual respect and strengthen our partnership. Because of this trust, we continue to work unaided.”

Along with many other rewards Joseph Grubaugh & Sigrun Seifert are the recipients of 5 Gold and 4 Silver medals for their work together at VSA competitions. They achieved Hors Concours in 1998. Both are members of the AFVBM and have been judges at VSA and other International Competitions. Both have lectured and written articles. Joseph has  often been an instructor at the VSA Oberlin Violin Making Workshop as well as in Oberlin Set-up and Restoration Courses. They are known for thought-out and respectful restoration and in that vain have also had the honor to have been commissioned to recreate missing components on many venerated older instruments.  A good percent of their time however is spent making violins, violas and cellos in “near new” and “antiqued” styles, always inspired by classical design and techniques. Our instruments are played by leading players in major orchestras.


Our cello is based on a comfortable Montagnana model with wood, work, varnish and texture similar to original instruments from 18th century Venice. The back, sides and scroll are the very best deeply flamed seasoned Bosnia Maple and the top is of robustly grained Italian Spruce. This wood was chosen for its beauty but especially for its acoustic qualities.