Evaluate Martech Vendors in Context

G2 and Gartner tell you which tools are popular. Stack Builder tells you which tools fit your stack. Evaluate vendors in the context of your actual architecture, integrations, and data flows.

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The problem with vendor reviews

Generic vendor comparison sites rank tools based on user reviews and feature lists. But they can't tell you how a specific tool will integrate with your existing stack, whether it creates data flow conflicts, or if it overlaps with something you already have.

Stack Builder flips vendor evaluation on its head. Instead of evaluating vendors in isolation, you evaluate them in the context of your architecture. Add a vendor to your stack, see how it connects, run AI analysis, and make decisions with full architectural context.

Vendor evaluation workflow

From stack mapping to vendor decision in four steps.

1

Map your current stack

Build your existing architecture visually. Every tool, every connection, every data flow.

2

Explore alternatives

Use AI Alternatives to find replacement options for any tool. See vendor suggestions that fit your category and integration requirements.

3

Generate RFI documents

The RFI Generator walks you through a 10-step questionnaire and produces a professional vendor evaluation document with weighted scoring rubric.

4

Score and compare

Score vendor responses against your criteria. Compare vendors side by side with team consensus tools. Make decisions with data, not opinions.

Built for stack-aware vendor evaluation

Every evaluation feature works in the context of your architecture.

AI Alternatives & Recommendations

Click any vendor in your stack and ask the AI for alternatives. Get suggestions that fit your category, integration patterns, and budget. See how each alternative would change your architecture before committing.

  • Context-aware vendor suggestions
  • See architectural impact before switching
  • Category-matched alternatives
  • Integration compatibility considered
AI Alternatives & Recommendations

RFI Generator

A 10-step guided questionnaire that captures your requirements and produces a professional Request for Information document. Includes weighted scoring rubric, evaluation criteria, and vendor comparison framework. Export as Markdown, PDF, or clipboard.

  • 10-step guided questionnaire
  • AI-generated evaluation document
  • Weighted scoring rubric
  • Export to Markdown, PDF, or clipboard
RFI Generator

Vendor Scoring & Comparison

Score vendor responses criterion by criterion. Compare vendors side by side in a visual matrix. Build team consensus with multi-reviewer support and disagreement highlighting.

  • Score vendors against your criteria
  • Side-by-side comparison matrix
  • Multi-reviewer consensus building
  • Export as CSV, Markdown, or PNG
Vendor Scoring & Comparison

Frequently Asked Questions

How is this different from G2 or Gartner?
G2 and Gartner provide generic vendor reviews based on user ratings. Stack Builder lets you evaluate vendors in the context of your specific stack — how they integrate with your existing tools, what data flows they affect, and whether they create redundancy.
What does the RFI Generator include?
A complete vendor evaluation document with your requirements, weighted scoring criteria, technical questions, integration requirements, and a comparison framework. It's ready to send to vendors.
Can my team collaborate on vendor scoring?
Yes, the Team plan supports multi-reviewer scoring with consensus tools and disagreement highlighting.
How many vendors can I compare?
There's no limit. Score as many vendors as needed against your evaluation criteria.
Does the AI recommend specific vendors?
The AI suggests vendors that fit your category and integration requirements. It doesn't take payments from vendors to influence recommendations.
Is the RFI Generator included in the free plan?
The RFI Generator requires Pro ($49/each) or is included unlimited in the Consultant and Team plans.

Start evaluating vendors in context

See how vendors fit your architecture before making decisions. AI alternatives, RFI generation, and team scoring built in.

Start evaluating free View features

No credit card required. Free forever plan available.