A

Apollo.io

Apollo.io sells a go-to-market platform combining a B2B contact database, sales engagement and AI agents that research accounts, build lists and run outreach.

StageLate-stage

Founded2015

HeadquartersSan Francisco, USA

StatusPrivate

Products

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• Apollo Application Sold on its own

  Go-to-market platform combining a B2B contact database with email sequencing, whose AI agents research accounts, build lists, write outreach, follow up and book meetings.

Inside Apollo

• Apollo AI Assistant AI agent Included with the parent

  Chat assistant inside Apollo that takes a request in plain language and carries it out in the product: finds prospects that match the ideal customer profile, researches accounts and builds outreach sequences, asking before any step that spends credits.

• GTM Harness Platform

  Apollo's agent layer for go-to-market work: it learns the customer's products, ideal customer profile and playbooks, plans multi-step work from one prompt, draws on a shared library of sales skills and keeps agents supervised until the customer lets them act alone.

• Builder Studio Application Demonstrated, not sold

  Announced Apollo tool in which a user describes a go-to-market system in plain language and an agent writes the code for it, with conversational editing, delivery as Apollo-hosted pages, a Salesforce embed or Slack, and scheduled or signal-triggered runs.

Closest alternatives 2

SSmartleadUndisclosedSmartlead's own blog presents Smartlead as an alternative to Apollo.3 of 4 capabilitiesShared product typeSourced competitorAutomate a repetitive processCompareZZoomInfoPublicApollo's own comparison page positions Apollo against ZoomInfo for sales prospecting.4 of 4 capabilitiesShared product typeSourced competitorAutomate a repetitive processCompare

Similar products 41

How this list is ranked ↗

IInstantlyUndisclosedApollo AI Assistant and Lead Finder Agent both list sales outreach; Instantly's scale not recorded.2 of 4 capabilitiesShared product typeCompareAArtisanUndisclosedApollo AI Assistant and Ava both list sales outreach; Artisan's scale not recorded.2 of 4 capabilitiesShared product typeCompareOOutreachLate-stageApollo AI Assistant and Outreach Revenue Agent both list sales outreach; larger scale (private).3 of 4 capabilitiesShared product typeLarger scaleCompareOOtter.aiUndisclosedApollo and Otter AI Sales Notetaker do comparable work on meeting notes and sales outreach; Otter.ai's scale not recorded.2 of 4 capabilitiesShared product typeCompareCClayLate-stageApollo AI Assistant and Account Agents both list sales outreach; larger scale (private).3 of 4 capabilitiesShared product typeLarger scaleCompareQQualifiedAcquiredApollo AI Assistant and Piper both list sales outreach; Qualified is acquired, with no independent scale.2 of 4 capabilitiesShared product typeCompareLlemlistUndisclosedApollo AI Assistant and lemAgent both list sales outreach; lemlist's scale not recorded.3 of 4 capabilitiesShared product typeCompareSSalesloftUndisclosedApollo and Salesloft both list sales outreach; Salesloft's scale not recorded.2 of 4 capabilitiesShared product typeCompareRRoxUndisclosedApollo AI Assistant and Rox Revenue Agents both list sales outreach; Rox's scale not recorded.2 of 4 capabilitiesShared product typeCompare1111xEarly-stageApollo AI Assistant and Alice both list sales outreach; 11x's scale not recorded.2 of 4 capabilitiesShared product typeCompareMmonday.comPublicApollo and monday CRM both list sales outreach; larger scale (public).4 of 4 capabilitiesShared product typeLarger scaleCompareRRegie.aiEarly-stageApollo AI Assistant and RegieGO both list sales outreach; Regie.ai's scale not recorded.2 of 4 capabilitiesShared product typeCompareGGongUndisclosedApollo and Gong Engage both list sales outreach; Gong's scale not recorded.3 of 4 capabilitiesShared product typeCompareAAttioLate-stageApollo and Attio both list sales outreach; Attio's scale not recorded.4 of 4 capabilitiesShared product typeCompareBBrevoLate-stageApollo AI Assistant and Aura AI both list sales outreach; Brevo's scale not recorded.1 of 4 capabilitiesShared product typeCompareSSalesforcePublicApollo AI Assistant and Hunter by Sales Cloud both list sales outreach; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareHHubSpotPublicApollo AI Assistant and Prospecting Agent both list sales outreach; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareZZoomPublicApollo and Bonsai by Zoom both list sales outreach; larger scale (public).4 of 4 capabilitiesShared product typeLarger scaleCompareCConversicaUndisclosedApollo AI Assistant and Ignite both list sales outreach; Conversica's scale not recorded.2 of 4 capabilitiesShared product typeCompareHHaptikAcquiredApollo and Interakt both list sales outreach; Haptik is acquired, with no independent scale.3 of 4 capabilitiesShared product typeComparePPipedriveLate-stageApollo and LeadBooster both list sales outreach; same layer and the same scale band (growth-stage private).2 of 4 capabilitiesShared product typeSame scale bandCompareGGenesysUndisclosedApollo and Predictive Engagement both list sales outreach; Genesys's scale not comparable: only a revenue estimate, no market cap or valuation.3 of 4 capabilitiesShared product typeCompareTTIFINLate-stageApollo and TIFIN AMP both list sales outreach; similar scale (private).3 of 4 capabilitiesShared product typeCompareCCopy.aiAcquiredGTM Harness and Copy.ai GTM Platform both list sales outreach; Copy.ai is acquired, with no independent scale.3 of 4 capabilitiesShared product typeCompareRARelevance AIEarly-stageApollo AI Assistant and Elli, the Enrichment Agent both list sales outreach; Relevance AI's scale not recorded.3 of 4 capabilitiesShared product typeCompare0101.AIUndisclosedApollo and TopSales AI both list sales outreach; 01.AI's scale not recorded.3 of 4 capabilitiesShared product typeCompareAAvomaUndisclosedApollo and AI Meeting Assistant both list meeting notes; Avoma's scale not recorded.2 of 4 capabilitiesShared product typeCompareBABland AIEarly-stageApollo AI Assistant and Bland both list sales outreach; Bland AI's scale not recorded; ships API service and agent platform rather than the same layer.2 of 4 capabilitiesDifferent layerCompareMPMeta PlatformsPublicApollo AI Assistant and Meta Business Agent both list sales outreach; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareFFirefliesUndisclosedApollo and Live Assist both list meeting notes; Fireflies's scale not recorded.2 of 4 capabilitiesShared product typeCompareMMicrosoftPublicApollo and LinkedIn Sales Navigator both list sales outreach; larger scale (public).4 of 4 capabilitiesShared product typeLarger scaleCompareGGranolaLate-stageApollo and Granola both list meeting notes; same layer and the same scale band (growth-stage private).1 of 4 capabilitiesShared product typeSame scale bandCompareWFWispr FlowLate-stageApollo and Wispr Flow Notetaker both list meeting notes; same layer and the same scale band (growth-stage private).1 of 4 capabilitiesShared product typeSame scale bandCompareFFreshworksPublicApollo and FireHydrant both list meeting notes; larger scale (public).4 of 4 capabilitiesShared product typeLarger scaleCompareSSlackUndisclosedApollo and Slack AI both list meeting notes; Slack's scale not recorded.2 of 4 capabilitiesShared product typeCompareFFathomAcquiredApollo and Fathom both list meeting notes; Fathom is acquired, with no independent scale.1 of 4 capabilitiesShared product typeCompareTBThe Browser CompanyUndisclosedApollo and Dia both list meeting notes; The Browser Company's scale not recorded.1 of 4 capabilitiesShared product typeCompareCClickUpLate-stageApollo and Brain² both list meeting notes; larger scale (private); ships agent platform rather than the same layer.3 of 4 capabilitiesDifferent layerLarger scaleCompareMManatalUndisclosedApollo and Manatal AI Notetaker both list meeting notes; Manatal's scale not recorded.1 of 4 capabilitiesShared product typeCompareBBase44AcquiredApollo and Base44 Superagents both list meeting notes; Base44 is acquired, with no independent scale.2 of 4 capabilitiesShared product typeCompareKKrispUndisclosedApollo and Krisp both list meeting notes; Krisp's scale not recorded.1 of 4 capabilitiesShared product typeCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Total funding

Press release · 5 Oct 2026

"this investment brings the company's total funding to approximately $250 million while nearly doubling the valuation of the company at $1.6 billion." — PRNewswire release of 29 Aug 2023 (Series D, $100M led by Bain Capital Ventures), reposted on CMSWire. The figure is stated as approximate. Searched for a later round in 2024-2026 and found none.

Stage, from valuation

Press release · 5 Oct 2026

"nearly doubling the valuation of the company at $1.6 billion" — Valuation as of the Aug 2023 Series D; no later valuation found, so it may be stale.

Founded

Official documentation · 5 Oct 2026

""foundingDate":"2015"" — homepage JSON-LD Organization block (founders Tim Zheng and Ray Li).

Description

Official documentation · 5 Oct 2026

"Apollo is the AI sales platform rebuilt as one connected AI GTM system: data, intelligence, and execution for the entire go-to-market motion." — homepage meta description.

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