Apollo.io Alternative:
Firmium compared
Official register data from more than 20 countries, enriched from public sources, with Deep Dive, AI similarity search, watchdog agents and API. The comparison follows a fixed feature catalogue; the statements about Apollo.io come from its public product pages.
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Firmium and Apollo.io compared
Firmium covers in one platform what otherwise takes three tools: official company and register data, identifying the companies behind website visits, and lead research with contact data.
Apollo.io describes itself as a connected go-to-market system that combines a contact database, sales engagement and AI automation in one platform, focused on North America.
Deep Dive per company
A dossier from website, register and press at the push of a button, with sources cited.
Shareholders and ownership networks
Shareholdings and personal connections as a network graph.
Financial statements and key figures in the profile
Balance sheet, income statement and derived key figures directly in the company profile.
Monitoring of changes
Alerts on register changes such as a new managing director or a relocation of the registered office.
Official registers as the foundation
Company profiles are based on the German Handelsregister, the Austrian Firmenbuch, the Swiss Zefix and other official registers.
Country coverage in Europe
Companies from several European countries in one search.
Enrichment from public sources
Company website, job postings and news complement the register data.
AI similarity search
Find comparable companies by what they do, not just by industry code.
Contact data and contact persons
Officers from the register and the company's contact channels.
Lead research by filter
Narrow down target companies by industry, region, size and further attributes.
Identify the companies behind website visits
See which companies visit your website, without identifying individuals.
CRM and ERP integration
Move data into your CRM or ERP via integration, webhook or export.
MCP server for AI assistants
Use the data directly in assistants such as Claude or ChatGPT.
REST API
Programmatic access to the same data as in the user interface.
Free entry
Sign-up and use possible without payment.
"No" and "Not stated" refer to the public product pages of Apollo.io. All statements without guarantee.
No credit card required.
Which provider fits when?
Apollo.io fits when ...
you need contact data and email sequences in one tool for outbound prospecting and register details are secondary.
Firmium fits when ...
you need register data with register numbers, ownership networks and financial statements for companies in Germany, Austria, Switzerland and other European countries, and want to find target companies from them (company database), trace shareholdings (ownership networks) or move the data into your own systems via API.
Frequently asked questions about Firmium as an alternative to Apollo.io
Apollo.io is a go-to-market system with a contact database and sales engagement; according to its own website, the data comes from a contributor network, web crawling and data partners. Firmium builds on the official commercial registers of European countries: shareholders, ownership networks and financial statements come directly from the register, complemented by public sources.
Yes. For Germany, Austria and Switzerland, Firmium uses the Handelsregister, Firmenbuch and Zefix as the foundation of every profile, plus identification of the companies behind website visits and an AI similarity search for comparable companies.
For company research and target company selection yes. Firmium does not offer email sequences or dialers; the data can be moved into existing tools via CRM integration, API or MCP server.
Signing up is free. Which features belong to which plan is listed on the pricing page.
From the official registers of the connected countries, complemented by publicly accessible sources such as company websites, job postings and news. Every register entry carries its register number.
Yes. Signing up is free and unlocks search and company profiles. Watchdog, list export and API come with the paid plans.
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See the comparisonTry Firmium as an alternative to Apollo.io
Register for free: unlimited search and company profiles, no credit card.