Explorium

Explorium is an Israeli-founded B2B data infrastructure company that aggregates and normalizes external signals from 50+ sources into a single API and MCP layer. Originally built as an automated external data platform for machine learning feature engineering, it has pivoted to serve as the data backbone for AI agent–driven GTM stacks. Its flagship product, AgentSource, delivers structured company and contact data — firmographics, technographics, buying signals, funding events, and workforce trends — through a developer-grade API and a native MCP server. The Vibe Prospecting plugin surfaces this data inside Claude and Cursor with natural-language queries.

Company and contact search across 150M+ company and 800M+ people profiles. Single-call API enrichment returning firmographics, technographic stack, hiring signals, funding events, intent signals (18 buying-signal categories, 80+ signal types), and verified contact details. Automated external data discovery that matches internal records to external signals without manual source-by-source integration. CRM enrichment via a Salesforce connector (consumption-based, reportedly $1/company/year on default plan). Lead scoring and TAM analysis using AI-generated custom data attributes. Batch and real-time enrichment pipelines. Natural-language prospect list building via the Vibe Prospecting MCP plugin.

API is purpose-built for agent consumption: structured outputs, clean IDs, smart error messages, 100 QPS throughput, and sub-200ms P99 latency. Single-call model returns all enrichment fields (profile, contacts, signals, technographics, funding) in one response — no waterfall credits. MCP server (AgentSource MCP) is live and actively maintained on GitHub; integrates natively with Claude Desktop (DXT extension), Claude Code (Vibe Prospecting plugin, installable via npx), and Cursor IDE. Server-side MCP architecture processes enrichment off-model and returns structured output, enabling runs of up to 1,000 entities per call without consuming LLM context window — a meaningful architectural advantage over in-context MCP competitors. Also available via n8n community node and Zapier MCP connector. Explorium is a native Anthropic Skill partner as of 2026.

Credit-based, consumption-tiered model. Free trial credits valid for 90 days; paid credits expire after 12 months and do not roll over. Enterprise contracts reportedly start around $50,000/year (per G2, sourced 2021 — likely higher for current agent-tier plans). Salesforce Connector listed at $1/company/year on default plan. Specific tier breakpoints and per-credit costs are not publicly disclosed; pricing is quote-based above the self-serve entry point. Free sign-up available at explorium.ai/sign-up.

Native Salesforce connector; n8n community node (official, open-source); Zapier MCP endpoint; Outreach (AgentSource integrated directly into Outreach's AI Prospecting Agent as of March 2025); Snowflake data partnership. Claude Desktop (DXT extension), Claude Code (Vibe Prospecting MCP plugin), and Cursor IDE (MCP). REST API with full developer docs at developers.explorium.ai. Integration templates repo maintained on GitHub (explorium-ai/integrations-templates). No native HubSpot, Slack, or CRM-agnostic workflow integrations confirmed beyond Salesforce and the API.

SOC 2 Type II certified; ISO 27001 certified; ISO 27701 (privacy-specific extension) certified — passed full audit. AES-256 encryption at rest; TLS 1.2+ in transit. Hosted on AWS. GDPR and CCPA compliance claimed across 50+ data sources managed through a single compliance posture. DPA available. Sub-processor list and right-to-audit clauses available on enterprise plans per vendor documentation. State data broker registrations: not independently verified. Specific SOC 2 audit scope (whether Processing Integrity and Privacy criteria are included beyond Security) not publicly disclosed — request report directly.

Founded 2017 (operational from 2018) in Tel Aviv, Israel, with U.S. offices in San Mateo/Redwood City, CA. Co-founders: Maor Shlomo (Co-CEO), Omer Har (Co-CEO/CTO), and Or Tamir (COO) — all veterans of ironSource, Natural Intelligence, and the IDF's Unit 8200. Total funding: $127M across 4 rounds — Seed ($3.6M, Emerge/F2 Capital), Series A ($15.5M, Zeev Ventures), Series B ($31M, July 2020), Series C ($75M, May 2021, led by Insight Partners with Fort Ross Ventures, Vintage Investment Partners, and others). Approximately 86–128 employees as of 2025–2026. Reported revenue of ~$20.8M in 2024. Notable customers include Taboola, Melio Payments, Idea Financial, and PepsiCo.

Moderate. Explorium's primary value for a firm is as a deal-sourcing and market intelligence data layer — using the AgentSource API or MCP to enrich target company lists with firmographics, funding signals, technographics, and hiring trends relevant to a firm's sectors (semiconductors, defense, space, energy, autonomy). The MCP-native architecture is directly relevant to a firm's AI-native firm buildout, enabling analysts to run natural-language prospect searches inside Claude without leaving the workflow. The 150M+ company database and buying-signal categories can power TAM analysis and sector mapping. Fit is Moderate rather than Strong because Explorium is GTM/outbound oriented and not purpose-built for VC deal flow (no cap table data, no private company financial signals, limited coverage of early-stage companies in deep-tech sectors). It complements a CRM like Attio but does not replace sourcing tools with private-market depth.

Not purpose-built for VC or growth equity — no cap table data, investor relationship mapping, or private company financial signals. Coverage of early-stage or stealth deep-tech companies (Explorium's core sectors) may be thin relative to specialized sourcing tools. Credit-based pricing with 12-month expiry creates use-it-or-lose-it pressure on large prepaid plans. API output consistency noted as uneven across endpoints by some G2 reviewers. Enterprise contract pricing is opaque and reportedly requires significant ACV. No native HubSpot integration. SOC 2 audit scope details (beyond Security criterion) are not publicly disclosed. Last disclosed funding round was May 2021 — no recent capital raise, which may signal slower product investment relative to better-funded competitors.