Nalloo

Nalloo is a company-level visitor identification service for B2B teams that want to connect anonymous site activity with account workflows. It suits teams qualifying inbound accounts rather than finding named people. Its free allowance is a useful starting point, while heavier use brings monthly fees or per-company charges.

Overview

Nalloo links anonymous B2B website visits to company names, domains and on-site intent. It can add firmographic context such as industry, size, headquarters, founding year and technology hints, helping teams decide which accounts merit follow-up. It does not reveal contact details, so it is not a tool for turning a visit into a named prospect.

Visitor activity history and reverse IP lookup add account-level context. Nalloo says it identifies companies rather than people, stores no personal profiles or PII for visitor identification, and hashes visitor IPs inside the EU. Its DPA describes hosting in Frankfurt and Madrid, encryption in transit and at rest, access controls, activity logging, monitoring, and backup and recovery procedures. Nalloo is a product of Ecofin Cloud S.L., based in Sant Cugat del Vallès, Barcelona, Spain.

Key features

• Company identification and firmographics: Company names, domains and intent are paired with public-source firmographic signals. That can help account-based teams prioritize traffic, but it will not supply a contact list.
• CRM and inbox workflows: One-click OAuth connections to HubSpot, Salesforce and Pipedrive can move company signals into existing sales workflows. An optional IMAP inbox scanner also identifies and enriches companies that have emailed the customer. These are practical additions for teams already working in those systems; Starter is the entry point that includes CRM sync and inbox scanning.
• Campaign attribution: Branded nll.me short links attribute clicks at the company level, giving campaign teams another account signal without identifying individuals.
• Lightweight installation: The asynchronous JavaScript tracker is about 13 KB and does not block page rendering. Instructions cover WordPress, Shopify, Webflow, Google Tag Manager and plain HTML, which gives common site setups a clear implementation route.
• Usage rules: Only new company identifications at medium or higher confidence count. Repeat companies in the same month and low-confidence, bot, VPN or Tor results are free, making the allowance more useful than a raw visit cap. When it runs out, new-company identification pauses unless pay-as-you-go is enabled; that option is off by default.

Pricing

Nalloo is freemium, with no free trial. Plans range from a capped free tier to custom-priced enterprise service. The key decision is whether volume is occasional enough for per-token billing or steady enough to justify a monthly allowance.

Free includes community support, Starter email support, Scale priority support, and Enterprise dedicated support. Pay-as-you-go is charged per token without a monthly commitment; at any tier, enabling pay-as-you-go matters because otherwise identification of new companies stops when the allowance is exhausted.

Platforms

Nalloo is available through web and API. Its JavaScript tracker and installation guidance cover WordPress, Shopify, Webflow, Google Tag Manager and plain HTML, making it relevant to teams managing either a standard site builder or a custom page.

Who it's for

Nalloo is best suited to B2B teams that want to qualify anonymous company traffic, enrich account context and route signals into a supported CRM or inbox workflow. It is less suitable when the job is to identify individual visitors or obtain their contact details. The free plan helps validate the company-level approach; teams with consistent volume should compare the included monthly tokens against their expected usage.

Pros and cons

• Pros: Company-level identification is enriched with useful firmographics and intent, so teams can prioritize accounts rather than just count visits.
• Pros: Usage excludes repeat companies in the same month and low-confidence, bot, VPN or Tor results, preserving allowance for qualifying new-company matches.
• Pros: HubSpot, Salesforce and Pipedrive OAuth connections, plus the optional inbox scanner, support handoff into existing workflows.
• Pros: A small asynchronous tracker and instructions for common site builders reduce the implementation burden.
• Cons: Nalloo does not identify people or reveal contact details, so teams seeking named leads need another approach.
• Cons: Free is limited to 50 identifications per month, and new identifications pause at the cap unless pay-as-you-go is enabled.
• Cons: Starter and Scale require monthly commitments of €75/ mo and €500/ mo respectively, which may not suit sporadic usage.

Alternatives

Consider ConnectLoop Visitor Intelligence if its message-based plans and one-agent free allowance better match a team focused on messaging; its free tier includes 200 messages, one agent/workspace and one lead owner.

Leadberry is another freemium option with a free trial for readers comparing web-based B2B lead-generation products.

Leadfeeder may suit teams that value broad platform access and a free allowance of up to 100 identified companies per month, with unlimited users and seven days of visitor history.

RB2B is worth considering if a free plan with 150 monthly resolutions and Slack push is a better fit; its free tier explicitly excludes person-level ID, email addresses and other integrations.

Visitor offers a free lifetime allowance of 25 identified companies for one website, making it a smaller-cap alternative for a single-site evaluation.

Warmly may be a fit for readers considering API/MCP plans, including a free tier with 250 credits per month and three tools.

TAPNET Visitor Identification offers a free website visitor identification plan with a lead widget and rolling 30-day history.

Factors.ai is another option for comparing company identification plans, with a Basic tier described as supporting up to 10,000 monthly tracked users, up to 3,000 companies identified per month and five seats.

Browse more options in Visitor Identification Software, Website Visitor Identification Software and Website Visitor Tracking Software.

Verdict

Choose Nalloo if your priority is turning anonymous B2B traffic into company-level account signals with firmographics and practical CRM or inbox handoff. Its usage accounting is considerate, and the free plan makes initial evaluation low-risk. Look elsewhere if you need named-person identification or contact details, or if the monthly caps and subscription costs do not fit your traffic pattern.