Insights

Market Leader WhoisXML API is a long‑standing cyber threat intelligence provider with a broad and deep data footprint, serving over 50,000 clients including Fortune 1000s, banks, telcos, and government agencies. This indicates strong credibility and potential for upsell to large enterprises seeking integrated threat intelligence feeds and domain/IP/DNS datasets.

Extensive Data Assets With massive historical and current datasets (billions of records across WHOIS, IP nets, DNS records) and a growing suite of APIs and tools, there are clear opportunities to cross‑sell newer intelligence solutions such as Domain Info API and TLD RDAP Monitor to customers needing enriched domain intelligence and monitoring capabilities.

Product Innovation Frequent recent launches (Domain Info API, TLD RDAP Monitor, DNS Chronicle API, intelligence features) show an active product roadmap that can be leveraged to target clients seeking advanced automation, enrichment, and threat intel workflows, particularly SOCs, SIEM/SOAR platforms, and MSSPs.

Growth Momentum Reported revenue range and Inc. 5000 recognition since 2017 reflect healthy growth and market traction. This signals potential for expanding into adjacent security markets and international registries or digital risk management segments through partner channels.

Engagement Opportunities Active participation in industry events (Code Blue Tokyo, BSides Chicago) and broad partner ecosystem (domains registries, marketing researchers, big data firms) present multiple touchpoints for co‑marketing, channel partnerships, and pilot programs to accelerate deal cycles with security operations teams and enterprise buyers.

Similar companies to WhoisXML API

WhoisXML API Tech Stack

WhoisXML API uses 8 technology products and services including Twitter Ads, HubSpot Analytics, Linkedin Insight Tag, and more. Explore WhoisXML API's tech stack below.

Media & News

WhoisXML API's Email Address Formats

WhoisXML API uses at least 3 email formats:
WhoisXML API Email FormatsExamplePercentage
First.Last@whoisxmlapi.comJohn.Doe@whoisxmlapi.com
67%
First@whoisxmlapi.comJohn@whoisxmlapi.com
31%
FLast@whoisxmlapi.comJDoe@whoisxmlapi.com
2%

Frequently Asked Questions

What is WhoisXML API's phone number?

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You can contact WhoisXML API's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is WhoisXML API's official website and social media links?

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WhoisXML API's official website is whoisxmlapi.com and has social profiles on LinkedIn.

How much revenue does WhoisXML API generate?

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As of August 2026, WhoisXML API's annual revenue is estimated to be $25M - $50M.

What is WhoisXML API's NAICS code?

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WhoisXML API's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does WhoisXML API have currently?

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As of August 2026, WhoisXML API has approximately 38 employees across 5 continents, including North America, Europe and Asia. Key team members include Vice President: A. R., Director Of Revenue Operations: D. H. and Product Marketing Director: A. F. Explore WhoisXML API's employee directory with LeadIQ.

What industry does WhoisXML API belong to?

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WhoisXML API operates in the Technology, Information and Internet industry.

What technology does WhoisXML API use?

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WhoisXML API's tech stack includes Twitter Ads, HubSpot Analytics, Linkedin Insight Tag, Amazon Web Services, Kubernetes, WordPress, Postman and ChatGPT.

What is WhoisXML API's email format?

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WhoisXML API's email format typically follows the pattern of First.Last@whoisxmlapi.com. Find more WhoisXML API email formats with LeadIQ.
WhoisXML API logo

WhoisXML API

Technology, Information and InternetCalifornia, United States11-50 Employees

WhoisXML API, based in Covina, California, is a technology company with more than 14 years of experience gathering, analyzing, and correlating domain, IP, and DNS data to support internet security and transparency. Its offerings include data feeds, APIs, research and monitoring tools, and cyber threat intelligence tailored for security teams, enterprises, and investigators. The data scope is extensive, including more than 21 billion historical WHOIS records across 7,596+ TLDs and ccTLDs, over 50 billion domains and subdomains, 10.4 million IP netblocks, 99.5% of IPs in use, and more than 116 billion DNS records collected. Its customer base encompasses commercial security platforms, SOCs, MSSPs, Fortune 1000 companies, government agencies, banks, and other organizations involved in cybercrime investigations and brand protection, and the company has been listed among Inc. 5000 fastest-growing IT companies since 2017. In October 2025 it announced the Domain Info API, a tool that provides an enriched WHOIS record for active or expired domains by leveraging its historical data.

Section iconCompany Overview

Phone number
NAICS Code
5415 - Computer Systems Design and Related Services
Employees
11-50

Section iconFunding & Financials

  • $25M - $50M

    WhoisXML API's revenue is estimated to be in the range of $25M - $50M

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