Fluid Focus is a suspension tuning company based in San Diego, California. They also sell their own US-made bump stops, pistons for select Fox and RockShox producs, and Super Alloy Racing springs.
Prevelo also have an offshoot-brand called Eaglebear. For now, this is the sole bike in the lineup - a flat bar commuters / town bike / grocery getter for $1,300 USD.
Prevelo's Zulu model is packed with clever features, including a pivotal dropper post that helps keep the stack height as low as possible, maximizing the mount of drop for smaller riders.
The Gritter shoe is another option that can be used for XC or gravel. It has two Boa Li2 dials to adjust the fit, and a carbon composite sole. It will retail for $400 when it officially launches.