B2BEnrich vs TechnologyChecker

B2BEnrich provides real-time B2B data enrichment through a REST API and web interface. It can turn emails, phone numbers, and profile URLs into professional profiles with job, company, and contact details. Company enrichment returns firmographic information such as industry, revenue range, employee count, headquarters, funding history, and technology stack. The service says its database includes more than 550 million professional contacts and 50 million companies. Email validation includes SMTP-level checks, deliverability scoring, disposable-address detection, MX validation, and breach-history checks. Requests and responses use JSON; the API uses API-key authentication and HTTPS encryption. CRM integrations include HubSpot, Salesforce, and Pipedrive, with Zapier, Make, or direct API connections available for other CRMs. The free plan includes 50 credits per month. Starter costs $49 a month for 2,000 credits per month, and includes a 7-day trial. Rate limits apply, and high-volume users can contact B2BEnrich about custom limits.

TechnologyChecker is a technology intelligence platform for B2B sales, go-to-market, and market analysis teams. It detects technologies across 29.9M live business domains, with coverage stated as 40,000+ technologies. Detection uses signals including HTTP headers, JavaScript fingerprinting, HTML parsing, and DNS lookups, and can identify backend infrastructure as well as standalone tools. Historical technology timelines reach roughly 20 years, while real-time signals cover adoption, churn, and replacement changes. The platform also offers verified decision-maker contacts matched to technology signals and audience exports for LinkedIn, Facebook, and Google Ads. Its API describes 29 REST endpoints for detection, company data, category share, and adoption, churn, and switch signals. Access is available through web, API, and a Chrome extension. The Free plan provides 100 lookups per month, six months of history, single-result CSV export, and basic company enrichment. Pro is $89 a month, billed $890 a year; Scale is $249 a month, billed $2,490 a year. Lookups pause when the monthly limit is reached until renewal or upgrade.