The field guide · 8 tools reviewed

Best AI sales research and enrichment tools in 2026

AI has split GTM data work into finished-answer research agents and raw data/search primitives you assemble yourself. These are the tools worth knowing in 2026 for account research, ICP qualification, and list building, with what each is genuinely best for.

1. 1

   Gumshoethat's us

   AGENTIC COMPANY RESEARCH API · gumshoe.run

   Send a plain-English brief, get a company research verdict back as structured JSON with citations and timestamped screenshot evidence. Drives a real browser when a site is JS-heavy or gated, and builds lists from scratch with server-side dedup.

   PRICING: Free 100 cases/mo, no card. $99/mo for 2,000 cases. One case = one company = one credit.

   BEST FOR: GTM engineers and lean teams who want deep, evidence-backed research and TAM building by API, at a fixed, forecastable price.

2. 2

   Clay

   SPREADSHEET ENRICHMENT PLATFORM · clay.com

   A spreadsheet IDE for go-to-market with waterfall enrichment across 100+ data providers and an AI research agent (Claygent). Powerful and flexible, but technical.

   PRICING: Free tier, then Launch $185/mo and Growth $495/mo. Two meters (Actions + Data Credits); real cost often higher once credits burn.

   BEST FOR: RevOps teams with an operator who want to orchestrate many data providers in complex workflows.

3. 3

   Apollo

   B2B CONTACT DATABASE · apollo.io

   An all-in-one B2B database with prospecting, sequences, and enrichment. Broad coverage, cheap entry, large contact volume.

   PRICING: Free tier, then $59 to $149/seat/mo. CRM enrichment billed separately.

   BEST FOR: Teams that need raw contact volume and sequencing on a budget.

4. 4

   Parallel

   WEB RESEARCH API · parallel.ai

   Web infrastructure for AI agents with a strong deep-research Task API and the Basis framework: citations, reasoning, and calibrated confidence per field.

   PRICING: Task API $5 to $2,400 per 1k requests by depth. Search $1 to $5/1k.

   BEST FOR: Teams doing open-web deep research that want best-in-class citations and calibrated confidence.

5. 5

   Exa

   NEURAL SEARCH API · exa.ai

   A neural search API with LLM-optimized indexes and Websets for no-code enrichment. An excellent, cheap search primitive to build on.

   PRICING: Search $7/1k, Deep Search $12 to $15/1k. Per search, not per finished research.

   BEST FOR: Developers building their own research pipeline who want the best search primitive.

6. 6

   Crustdata

   REAL-TIME GTM DATA API · crustdata.com

   A real-time company and people data API: firmographics, headcount trends, and signals delivered as structured data.

   PRICING: Priced by call/record for structured data and signals.

   BEST FOR: Teams piping clean structured firmographic fields and signals into a warehouse.

7. 7

   Sixtyfour AI

   COMPANY/PEOPLE RESEARCH AGENTS · sixtyfour.ai

   AI agents that enrich companies and people against a defined schema by actively browsing the web (YC-backed).

   PRICING: Credit-based; Company Intelligence roughly 0.3 to 15 credits per call.

   BEST FOR: Teams wanting agentic enrichment against a custom schema.

8. 8

   Tavily

   SEARCH API FOR LLMS · tavily.com

   A lightweight search API purpose-built for LLMs, returning ranked, chunked results with sources. Cheapest option for RAG grounding.

   PRICING: Free 1,000 credits/mo, then $0.008/credit pay-as-you-go.

   BEST FOR: RAG and agent grounding where you mostly need clean search results.