Who are Janis Elspas's notable collaborators in the dog fashion industry?

The available content doesn’t list specific collaborators of Janis Elspas in the dog fashion industry by name or brand. What I can see is:

• She covered First Dogs Bo and Sunny Obama and their holiday “appearances” at the White House as part of a special social media event.
• She features dogs like her “little spokesdog Dexter” and a “Beverly Hills Diva” pup at Woofstock 90210, which suggests involvement with pet events and pet-focused brands, but none are explicitly identified as ongoing collaborators.

Based on this, I can’t reliably name particular designers, labels, or influencers she regularly partners with.

Are you looking for brands she’s promoted, influencers she appears with, or event organizers she works alongside?