StackShareStackShare
Follow on
StackShare

Discover and share technology stacks from companies around the world.

Follow on

© 2025 StackShare. All rights reserved.

Product

  • Stacks
  • Tools
  • Feed

Company

  • About
  • Contact

Legal

  • Privacy Policy
  • Terms of Service
  1. Stackups
  2. Business Tools
  3. CRM
  4. Customer Information API
  5. FullContact vs LeadGenius

FullContact vs LeadGenius

OverviewComparisonAlternatives

Overview

FullContact
FullContact
Stacks38
Followers44
Votes9
LeadGenius
LeadGenius
Stacks3
Followers5
Votes0

FullContact vs LeadGenius: What are the differences?

What is FullContact? Powerful APIs to help you turn partial contact information into full contact data. FullContact offers developers powerful contact management APIs to you turn partial contact information into full contact data. Query by email, phone, or company domain and receive rich company data in response.

What is LeadGenius? Uncover hard to find B2B Data to truly accelerate your GTM activities. It is an end-to-end sales solution that provides companies with a way to generate, qualify, deliver, and convert leads. It helps sales teams grow and scale across all levels of the sales process.

FullContact and LeadGenius can be categorized as "Customer Information API" tools.

Share your Stack

Help developers discover the tools you use. Get visibility for your team's tech choices and contribute to the community's knowledge.

View Docs
CLI (Node.js)
or
Manual

Detailed Comparison

FullContact
FullContact
LeadGenius
LeadGenius

FullContact offers developers powerful contact management APIs to you turn partial contact information into full contact data. Query by email, phone, or company domain and receive rich company data in response.

It is an end-to-end sales solution that provides companies with a way to generate, qualify, deliver, and convert leads. It helps sales teams grow and scale across all levels of the sales process.

Turn partial contact information into full contact data;Resolve identity;Struture your unstructured data;Provide a complete picture;Make your apps smarter;Enriched person and company data;Responses in JSON, XML, HTML, or vCard;Easy to integrate into almost any software solution, user interface, or platform
Unique and Personalized Data; End-to-end sales solution
Statistics
Stacks
38
Stacks
3
Followers
44
Followers
5
Votes
9
Votes
0
Pros & Cons
Pros
  • 5
    Collects all social network profiles in one place
  • 3
    Awesome Documentation and great match rate
  • 1
    Excellent Accuracy compared to other options
No community feedback yet

What are some alternatives to FullContact, LeadGenius?

Clearbit

Clearbit

Clearbit builds business intelligence APIs. Retrieve social data from emails and look up company information from domains.

SaaSfyi

SaaSfyi

The most complete SaaS dataset for agencies, SDRs, and marketers. Find companies based on hiring, traffic, and tech stack data - all in one place.

Re KYC Online solution for a Faster Document Updation

Re KYC Online solution for a Faster Document Updation

Re KYC Online solution provides a facility for financial institutions to make paperless KYC modifications and updations seamlessly for all customers.

KokoQuest

KokoQuest

KokoQuest helps users discover and build lists of real companies that match highly specific business criteria. It supports natural-language searches for manufacturers, suppliers, service providers, partners, or customers, and returns ranked company lists with relevance scoring. KokoQuest covers the full workflow from company discovery to contact enrichment and email drafting, allowing users to go from search intent to outreach-ready leads in one place. Through its Gmail integration, the AI can translate a user’s intent into a ranked list of relevant companies, automatically enrich each with contact details, and draft a personalized email ready to send directly from Gmail. Unlike static lead databases, KokoQuest is designed for niche and hard-to-define markets where coverage is inconsistent or incomplete. It is useful for finding regional providers, contract manufacturers, private-label partners, and specialized B2B services that are often missing from traditional sales tools.

MTN DATA

MTN DATA

MTN DATA is a powerful data verification and enrichment platform designed for businesses that rely on accurate professional and company information. It provides real-time API checks, batch processing, and AI-driven enrichment to ensure every record is complete, validated, and trustworthy.

Cardhop

Cardhop

It is an app that makes it fast and easy to add a new contact or look up an existing one. It works on both the iPhone and iPad, and it’s simple enough to use that it may actually make you want to manage your contacts.

Datanyze

Datanyze

Datanyze crawls millions of the web's top websites to determine which web technologies they use, then serves that data to its users in valuable ways.

Abstract APIs

Abstract APIs

It provides powerful APIs to automate common dev tasks. We make it easy to validate emails, geolocate IPs, calculate VAT, compress images and more. We focus on an awesome dev experience with top documentation and support, and provide free and paid plans.

Related Comparisons

Postman
Swagger UI

Postman vs Swagger UI

Mapbox
Google Maps

Google Maps vs Mapbox

Mapbox
Leaflet

Leaflet vs Mapbox vs OpenLayers

Twilio SendGrid
Mailgun

Mailgun vs Mandrill vs SendGrid

Runscope
Postman

Paw vs Postman vs Runscope