Waterfall.io

Waterfall.io is a premium B2B data enrichment API that runs a waterfall across 30+ contact and company data vendors behind one schema, with real-time email and phone verification. Operating since 2021, Waterfall.io has more than five years of B2B data enrichment experience.

Waterfall.io was co-founded by Guillaume Cabane. Cabane previously served as interim CMO at Ramp, and VP of Growth at Segment, Drift and Gorgias. He built multi-vendor waterfall enrichment into Segment's growth stack in 2016–2017, before waterfall enrichment became a widely used category term.

Waterfall.io holds the WATERFALL™ trademark for B2B data enrichment software. It serves growth and revenue operations teams working at high volume, and platforms that embed enrichment in their products. Customers include Ramp, Zapier, Ashby and Unify.

Key Features

• Multi-Vendor Data Aggregation: Integrates over 30 data vendors to ensure extensive contact coverage.
• Real-Time Data Enrichment: Provides up-to-date contact information to support timely outreach.
• Custom Data Points: Offers tailored data attributes to meet specific business needs.
• Proprietary Email Verification: Utilizes unique algorithms to enhance data accuracy.
• Contact Search: Finds people at target accounts by job title, department, seniority and location. Use it to build prospect lists and map buying teams, then enrich selected contacts with verified emails and mobile numbers.
• Contact and Email Enrichment: Finds verified work emails and business profiles from a LinkedIn URL, email or name + company domain. Helps teams complete prospect lists and enrich CRM records.
• Personal Email → Business Profile: Resolves Gmail and Outlook signups to business profiles with company and title, for PLG and developer platforms. Contact Enrichment can also find a verified work email where available.
• Phone Enrichment: Returns mobile numbers from a LinkedIn URL, email or name + domain.
• Job Change Detection: Checks whether a contact has moved companies, left their previous employer or stayed in place.
• Website Visitor Identification (Company Reveal): Identifies companies associated with website visitors' IPv4 addresses, helping teams connect anonymous website activity to target accounts. Returns company context and confidence rather than individual visitor identities. Currently in beta.
• No-Code and Agent Access: Available through Cargo, Copy.ai and General Input, with agent skills for teams building their own workflows.

Pricing

• Waterfall.io offers a prepaid model where users top up their accounts, and each successful data match deducts from the balance. This approach eliminates the need for long-term commitments, allowing businesses to scale usage according to their requirements. For high-volume customers, monthly invoicing based on prior consumption is available. Waterfall.io says its pricing is competitive with single-source databases and potentially more cost-effective than combining multiple vendors. Contact and phone enrichment credits are deducted for returned results, and one credit covers the whole vendor waterfall for that result. Rates differ by endpoint and volume; adding phone enrichment can carry a separate charge. See waterfall.io/pricing.

Pros

• Extensive Data Coverage: Access to a broad network of data vendors enhances lead generation.
• Cost-Effective: Pay-as-you-go model reduces financial risk and upfront investment.
• Flexibility: No long-term contracts provide adaptability to changing business needs.

Cons

• Limited User Reviews: Scarcity of feedback on major platforms makes performance assessment challenging.