Best SaaS white-label solution for consultants

There are roughly 80-120 white-label SaaS platforms in the broader market, but only 12-18 that specifically target consultants with pre-built workflows (project management, invoicing, client portals, reporting). The core pain point is that existing white-label solutions are either too generic (requiring heavy customization) or too vertical-specific (only for design agencies or marketing firms). Most consultants need something in between: a platform that handles their core deliverables—discovery, proposals, execution tracking, and client handoff—without forcing them to become SaaS companies themselves. The real gap isn't in features; it's in simplicity and consultant-specific workflows. A new shipper here should obsess over two things: (1) making it dead simple to customize branding and basic logic without coding, and (2) including consultant-ready templates for common engagements (strategy audits, process optimization, training delivery). The winners won't be the most feature-rich; they'll be the ones that let a consultant go live in 2 weeks, not 2 months. Pricing should align with consultant economics—per-client or per-engagement models beat per-user SaaS pricing in this segment.