Self-described as "post-rock dance music,"[3] the band mixes standard live rock instrumentation with electronics, favoring group rhythm over individual solos.

The group has raised significant amounts of money towards activism efforts, including $150,000 to the Make it Right Foundation, paving the way to rebuild a house in the Lower 9th Ward of New Orleans.

In the band's last studio album The Universe Inside, which is the twelfth in their full discography, STS9 continues to grow by incorporating dance and disco styles into their music.

In exchange for fan participation in these events, STS9 and Conscious Alliance thank patrons with limited edition artwork posters, often created by the same artists who accompany the band on stage.

The band hoped to offset 100%, or about 138,000 pounds, of their carbon dioxide emissions from their tour by donations of Renewable Energy Credits from their partnership with environment-friendly companies.

All proceeds from this album went to the Make it Right Foundation, in an effort to build a home in New Orleans, which has since been completed and taken up by a family displaced by Hurricane Katrina.

For protection against future storms, the home has walls that can withstand 130 mph winds, Kevlar hurricane shields for the windows, and a roof hatch in case an escape is necessary.

In 2003, the band reached new heights by opening for The String Cheese Incident in their first amphitheater performance, at majestic Red Rocks Amphitheatre in Morrison, Colorado.

In the San Francisco Bay Area, the band has built a following with frequent performances at The Fillmore, Warfield Theatre, and the historic Regency Center.

The band has also put on performances at the Independent, Great American Music Hall, Golden Gate Park, and the Stern Grove Festival.

The band turned New Year's Day into a benefit for Conscious Alliance, inviting 600 fans to a sit-down dinner and a full improv set.

According to the band's website, this event promised to be "a unique celebration of music, nature, family, mind, body, and spirit."

In 2011, STS9 re-created the Re:Generation festival in its second incarnation held at Horning's Hideout in North Plains, Oregon, with a lineup that included Glitch Mob, Beats Antique, and Tycho.

On Saturday June 7, 2008, the band headlined the Sun Down Stage at the Wakarusa Music Festival at Clinton State Park, Lawrence, Kansas.

A variety of musical performers joined STS9 at Wave Spell, including: Sunsquabi, eDIT and Ooah of the Glitch Mob, Manic Focus, Charlesthefirst, Antennae, and others.