
Webstacks
San Diego, CA, USA (remote-first)
Team size
50 employees per its own timeline; Clutch bands 50–249
Founded
2020
Min. engagement
$10,000+ minimum project size
Rate
$200–$300/hr
Webstacks
8.4/10
Weighted score
Webstacks is the most narrowly B2B-SaaS agency on this list after Bricx Labs. Its own headline is "From Series A to IPO," and the logo wall backs the claim up rather than decorating it: Snowflake, Klaviyo, Gong, Cribl, Cockroach Labs, Calendly, Braze, Circle. There is no consumer or e-commerce work hedging the positioning. Founded in San Diego in 2020, it sells composable, headless builds on Sanity plus an ongoing website product team instead of a one-and-done project, which is why Clutch shows a $200-$300 hourly rate sitting on top of a low $10,000 minimum: the entry project is small and the retainer is where the money is. The gap is evidence. Two case studies checked for this entry, Calendly and Gong, describe the outcome qualitatively (the Gong page says the site went from a blocker to a growth driver) without publishing a single conversion, traffic, or pipeline number, so the conversion score here rests on stated positioning rather than proof. It is also the youngest agency on this list by six years, which matters if you want a vendor that has already survived a downturn.
Best for: Series B and later SaaS marketing teams that want a headless rebuild plus a standing web team
Specialties
Verified clients
Snowflake, Klaviyo, Gong, Cribl, Cockroach Labs, Calendly, Braze, Circle
Pricing model
Composable website builds plus an ongoing website product team





