Greenbook Company Profile

https://www.greenbook.org/. External link for Greenbook. Industry: Market Research. Company size: 11-50 employees. Headquarters: New York, NY. Type: Privately ...

Industry: ProfServ

Segment: Research/Analyst

Team size: 11-50

Location: New York, NY

Generated by Kustiq, an AI company intelligence platform for B2B teams. Multi-stage pipeline: AI classification + live web scraping + SMTP-verified contacts + 12-factor rule-based churn engine.

Company profile

Greenbook

https://www.greenbook.org/. External link for Greenbook. Industry: Market Research. Company size: 11-50 employees. Headquarters: New York, NY. Type: Privately ...
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AI-verified profile

https://www.greenbook.org/. External link for Greenbook. Industry: Market Research. Company size: 11-50 employees. Headquarters: New York, NY. Type: Privately ...

Employees

11-50

Location

New York, NY

AI Classification

ProfServResearch/Analyst

Greenbook is a market research industry platform serving insights and analytics professionals, offering a vendor directory of 1,000+ verified companies, buyer's guides, content (articles, reports, podcasts), and global conferences (IIEX series) for the market research ecosystem.

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Greenbook is profiled by Kustiq, an AI company intelligence platform for B2B teams. Greenbook is one of 47 research / analyst companies in our Professional Services directory. Similar profiles include Resend · Email for developers, Complianceexperts, Bettermode, and Cloud-based data analytics exploration for all.

How Kustiq built this profile

Hybrid pipeline: deterministic verification + Claude reasoning

  • Live web rendering via Browserless headless Chrome, not a stale cached scrape.
  • Search intelligence via Serper API across {company site, LinkedIn, press, GitHub}.
  • Claude Sonnet 4.6 classifies vertical, segment, and growth signals; never used for facts.
  • 12-factor churn engine produces a deterministic risk score with zero LLM calls at scoring time.
  • SMTP RCPT TO handshake verifies every contact at delivery time on full profiles (paid plan).

Read the full methodology in our LLM-readable reference or compare against the deterministic-vs-AI framework.

Part of 3,020 AI-profiled B2B companies. Browse the full directory