UserEvidence acquires Zealot: adds advocacy + references, backed by $7M in new funding
Base started with engagement and went wide. UserEvidence started with proof—and turned it into a system of advocates, references, and communities your GTM team can rely on.
Base’s destination-first model relies on community hubs powered by a white-label vendor. Proof often ends up buried in portals — out of reach when Sales and CS need it most.
The product vision sounds compelling, but programs take months to show impact and advocates get overused, leaving customers feeling like Base overpromised and underdelivered.
If you want an engagement hub with community add-ons, Base can work.
If you want advocates, references, customer communities, and evidence GTM teams use every day — UserEvidence is what you’re looking for.
UserEvidence delivers always-on advocates, references, and third-party-verified proof — embedded directly in Slack, Salesforce, Highspot, Seismic, and email.
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| Who it’s built for | Customer marketers and advocacy managers running lifecycle campaigns |
GTM teams (Sales, CS, PMM, Customer Marketing) + advocacy/community managers |
| Motion | Lifecycle engagement and gamified workflows |
Advocates, evidence, references, and communities embedded in GTM workflows |
| Time to value | 9–11 months to deploy* |
<45 days to adoption*; 1.3 months to ROI*** |
| Adoption | 41%** |
87%** |
| Strength | Flexible engagement workflows with broad configuration options |
Delivers verified proof, advocates, references — and native advocate / community programs |
| Limitation | Community is powered by a third-party white-label vendor; complex setup with low Sales / CS adoption |
Young, fast-moving roadmap; advanced community and reference features still expanding |
| CAPABILITY |
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|---|---|---|
| Advocate and customer community hubs |
 Community powered by a white-label third-party platform |
 Native advocate and community hub with Slack-based missions and gamification built in |
| Reference management |
Buried in a gamified hub; hard for reps to access |
One-click fulfillment + proactive AI matching directly in Salesforce |
| Reference burnout tracking |
Minimal visibility |
Automated fatigue tracking + content deflection to protect advocates |
| CRM opportunity attribution |
Limited and slow to configure |
Native Salesforce package that makes attribution straightforward |
| Statistical proof and ROI outcomes |
 No structured way to quantify outcomes |
Third-party-validated ROI, usage, and outcome data from your customer base |
| Testimonial and quote creation |
None — engagement-focused |
Verified quotes and testimonials, sales-ready from day one |
| Sales and CS access to proof |
Trapped in destination portal |
Embedded directly in Slack, Salesforce, Seismic, Highspot, email, and in-product |
Here’s how customers describe the gap between Base’s promise and their reality.
Long implementations, complex admin setup, and months before results show. Teams lose momentum before they see value.
Engagement activity lives inside a community hub, but not where Sales or CS work — so great stories never reach active deals.
References, case studies, and advocacy all sit in different tools. No single source of truth for proof your GTM team can actually use.
The same customers get asked repeatedly for reference calls, without visibility or safeguards to protect relationships.
Source: *Independent survey of 185 customer marketing leaders (Captivate Collective, 2025 Customer Marketing Tech Landscape) and **UserEvidence customer survey (October 2025).
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| Survey respondents (n) | 41 |
35 |
| Average satisfaction (out of 10) | 7.1 |
8.8 |
| Ease of use (out of 5) | 3.5 |
4.3 |
| Customer success (out of 5) | 4.3 |
4.7 |
| Product reliability (out of 5) | 3.8 |
4.5 |
| Time to ROI | 9-11 months* |
