Apollo.io
Founded 2015 (rebranded from ZenProspect); GTM platform — prospecting database + outreach + AI. $100M Series D Aug-2023 ($1.6B val; Bain Capital Ventures + Sequoia). $200M+ ARR; Apollo AI launched 2024.
Active · Verified 2026-10-28 · fresh as of 2026-10-28 · 22 cited facts, 1 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- GTM platform with AI agents (Apollo AI) vendor fix
- Tier
- T2
- Created
- 2015 (founded; rebranded 2021) vendor fix
- Latest release
- not applicable — wrong section fix
- License
- not applicable — not OSS fix
- GitHub
- not applicable — no GitHub repo fix
- Pricing
- not applicable — wrong section fix
- Funding
- $100M Series D Aug-2023 ($1.6B val; Bain + Sequoia) vendor fix
- Freshness
- 2026-10-28 fix
- Layer
- agent-infra repo fix
- Licensing
- commercial vendor fix
- Protocols
- mcp-server vendor fix
- Compliance
- ccpa, gdpr, iso27001, pci-dss, soc2-type2 vendor fix
When to use
Optimised for: GTM intelligence + AI-augmented outreach
Anti-fit: not applicable — wrong section
Pros & cons
Pros
PLG motion + sales-engagement combo; $200M+ ARR; broad prospecting database; AI overlay.
Cons
Database accuracy concerns historically; AI is overlay vs reimagined.
Claims & capabilities
$100M Series D Aug-2023 ($1.6B val); $200M+ ARR; 16k+ paying customers; Apollo AI 2024
Technical surface
- API surface
- not applicable — wrong section
- Backend storage
- not applicable — wrong section
- Deployment
- not applicable — wrong section
- Embedding model
- not applicable — not a memory product
- Multi-tenancy
- not applicable — wrong section
- MCP
- yes — hosted remote MCP server at https://mcp.apollo.io/mcp (Streamable HTTP, OAuth 2.0 or master API key)
- A2A
- not applicable — wrong section
- OpenTelemetry
- not applicable — wrong section
Alternatives to Apollo.io → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other use-case-specific agent harnesses in the catalog, ranked by inbound references.
- Calypso AI (now F5 AI Guardrails) T2
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- Salesforce Agentforce T1
Cross-listing: Salesforce Agentforce already exists under Vertical / Customer-support / voice memory; this row is the Agent-harness framing — Agentforce as the consumer-facing agent IDE / builder on Data Cloud. Agentforce launched Sep-2024; Agentforce 2.0 announced Dec-2024.
- Lasso Security T2
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- Pillar Security T2
Tel-Aviv-founded (Dor Sarig + Ziv Karliner, both ex-IDF cyber); end-to-end LLM security platform — discovery, red-teaming, runtime guardrails. $9M seed Apr-2024 (Shield Capital + Greenfield).
- Promptfoo T2
OSS (MIT) prompt-engineering eval and red-team CLI; supports OWASP LLM Top-10 vulnerability tests, jailbreak generation, and CI/CD pipeline integration. $5M seed Mar-2024 (Andreessen Horowitz). Founders ex-Discord + ex-Smile Identity.
- Protect AI T2
Founded 2022 by Ian Swanson + Daryan Dehghanpisheh (ex-AWS); AI/ML supply-chain + GenAI security. Acquired by Palo Alto Networks (2025-07-22; announced Apr-2025, reported $700M); its capabilities now ship in Prisma AIRS. Products: Recon (red-team), ModelScan (model artifact scanner), Sightline (vulnerability DB).
Sources (21 cited facts, 1 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is GTM platform with AI agents (Apollo AI) vendor
- What it does & what's distinct Founded 2015 (rebranded from ZenProspect); GTM platform — prospecting database + outreac… vendor
- Claims / benefits $100M Series D Aug-2023 ($1.6B val); $200M+ ARR; 16k+ paying customers; Apollo AI 2024 vendor
- Created 2015 (founded; rebranded 2021) vendor
- Funding $100M Series D Aug-2023 ($1.6B val; Bain + Sequoia) vendor
- Customers / scale 16k+ paying customers (Veeva, Quora, Stripe, Mutiny) vendor
- HQ San Francisco vendor
- Founders / pedigree Tim Zheng (CEO; ex-Salesforce) vendor
- MCP support yes — hosted remote MCP server at https://mcp.apollo.io/mcp (Streamable HTTP, OAuth 2.0 … vendor
- Optimised for GTM intelligence + AI-augmented outreach vendor
- Pros PLG motion + sales-engagement combo; $200M+ ARR; broad prospecting database; AI overlay. vendor
- Cons Database accuracy concerns historically; AI is overlay vs reimagined. vendor
- Project & sources www.apollo.io/ vendor
- adoption-accelerator yc-w16 third-party
- architecture-deployment-locus cloud vendor
- licensing-bucket commercial vendor
- positioning-platform-vs-product product vendor
- taxonomy-three-layer-rollup agent-infra repo
- compliance-certifications ccpa,gdpr,iso27001,pci-dss,soc2-type2 vendor
- sdk-languages rest vendor
- protocol-support mcp-server vendor
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)