Welcome to Upton Bass String Instrument Company of Mystic, Connecticut. Upton Bass is devoted to building the finest handmade double basses for musicians of every tradition and style.



Upton Bass was conceived to make quality, affordable double basses available for real-world musicians. We've been challenging the status quo ever since! Original designs such as the Karr and Bostonian models have pushed ergonomic innovations and refined key geometries found on every double bass we build.



Upton basses combine our love of bass-building tradition with a modern sense of tone, ergonomics and design. Models such as the Concord, Brescian, Mittenwald and Bohemian reference classic bass styles from America and Europe, each rethought and built with the advancements and durability contemporary bassists require. A restoration shop from the beginning, Upton Bass also carries a large selection of fine and vintage upright basses for sale.


Worldwide Acclaim

Upton Bass instruments have won worldwide acclaim and awards, but we are proudest of the list of musicians who play Uptons – artists including Gary Karr, John Pattitucci, Eric Revis, Marc Johnson, Harvie S and Lynn Seaton. Their musical insight and feedback are reflected in every bass that leaves our shop.


American Made

Every Upton Bass instrument is built in our Connecticut post-and-beam workshop. From selecting and seasoning tonewood to finish and setup, every step of the build process happens under our roof. Our business depends on the health and sustainability of our natural resources, a commitment reflected in our shop, processes and ecological footprint.


Repair & Restoration

We offer a comprehensive selection of strings, pickups, bags, amplifiers and accessories, each developed or rigorously selected to meet the needs of the modern working double bassist. Our knowledgeable staff have real-world experience with every product we offer. Our repair and restoration services range from routine adjustments to complete rebuilds.



When you buy an instrument from Upton Bass, you are buying direct with no dealer markup. The people who take your order are the craftsmen who will build your instrument. We've also developed the UB Standard line for those on a budget, hand built in our shop alongside our finest instruments. All of our double basses are built to last with ever-sweetening tone – basses that hold and gain value over time.



The form and function of each Upton Bass instrument is guided directly by the pursuit of great tone and feel. We've built basses for every style of music and look forward to building you a unique instrument which will enhance your playing and creativity.

Upton Bass Double Bass Upton Bass Double Bass

The Mittenwald

The Mittenwald is 1 of 6 unique Upton Models, handcrafted at the Upton Bass workshop.

View the full range


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Upton Bass

  • 159 Packer Road
  • Mystic, CT 06355


Upton Bass

  • 159 Packer Road
  • Mystic, CT 06355

Upton Bass

The Upton Barn

  • 159 Packer Road, Mystic, CT 06355
  • Tue - Sat / 10:00am - 6:00pm