This is a curated list from testing tools over the years and talking to hundreds of B2B marketers, SDRs, and go-to-market pros. Whether you're building your first outbound motion or optimizing a mature engine, this reference will help you find the right tool for the job.
Best All-in-One Platforms for B2B Lead Generation and Outreach
Tool
Has Data
Has Sending
Pricing Starts At
Notes
Contact and Email Enrichment Tools for Outbound Campaigns
- Apollo.io
Verified emails, enrichment, direct dials - Cognism
GDPR-compliant EU data, strong contact quality - Clearbit
Real-time firmographic + contact APIs - PeopleDataLabs
Deep identity graph, API-based - Dropcontact
Privacy-compliant email enrichment - FullEnrich
Aggregates 15+ data sources - LeadGenius
Curated lists and research for MM/Enterprise - Snov.io
Email finder, verifier, and drip tools - Tomba
$39/mo for 100 verified contacts - Findymail
Extract emails from LinkedIn searches - RocketReach
Emails + phone; expensive but reliable - Wiza
Email + phone, credit-based model - Kaspr
Direct dials at low cost - ExactBuyer
Intuitive UI for filtered prospect lists - Leadrocks
Affordable enrichment tool - BookYourData
CSV-based B2B data purchases
Tools to Find Direct Dials and Mobile Numbers
- Lusha
Known for accurate direct dials - ZoomInfo
Best-in-class for phone validation - Cognism
Especially strong in EU markets - FullEnrich
$0.125/number via Freckle - Datagma
Smaller volume, strong niche focus - Freckle
UI over FullEnrich API; flexible filtering
ICP & Lookalike Audience Building Tools
- Apollo.io
Lookalike Accounts AND Lookalike Contacts - TryTelescope.ai
Automatically model ICP from closed-won deals - Ocean.io
Find lookalike accounts based on top customers - LeadGraph
Advanced filters; demo required - Clay
Complex and pricey; requires certification and training - DiscoLike
Define Your ICP as an Account List Purpose-built LLMs & precision company data for TAM Discovery and ICP Matching
Industry specific data for outbound programs
Best Construction data sources for outbound
- ConstructConnect
Project intelligence on planned and active builds with GC, architect, bidder contacts, documents, and timelines. - Building Radar
Early lead detection using AI on news, filings, and geospatial sources to spot projects pre-tender. - Construction Monitor
Permit data and project details by region to surface new builds, remodels, and contractor activity. - Shovels
Nationwide permit and entitlement data plus first-signal alerts for new projects. App, API, and warehouse outputs. - Mercator.ai
AI-powered project discovery, relationship graphs, and prioritization to spot opportunities earlier. - Metroc
Construction project discovery and market monitoring with relationship tracking and opportunity alerts. - TheScribe AI
Summarizes and structures city planning docs and filings into actionable project intelligence. - Common signals
Permits, rezoning filings, project stages, GC awards, spec changes, bidder lists.
Best Government data sources for outbound
- GovTribe
Federal notices, awards, vendor history, and teaming insights with real-time opportunity alerts. - Govly
Supplier network and teaming marketplace to track solicitations and collaborate on bids. - GovSignals
Unified capture, intelligence, and proposal workflows with verified government data. - HigherGov
Unified search across contracts, grants, budgets, opportunities, agency and vendor profiles. - Pursuit
Pre-RFP discovery and RFP monitoring across SLED and education with capture workflows. - GovScout
AI-powered bid tracking, market intelligence, and competitor analysis to win public sector work. - NationGraph
AI procurement platform for SLED with insights from purchase orders and institution data. - Datapolitics
Tracks local public debate and policy activity to anticipate procurement opportunities. - Common signals
RFP releases, grant awards, budget discussions, committee agendas, meeting minutes.
Best Food and Hospitality data sources for outbound
- Datassential
Menu intelligence, concept trends, consumer testing, and operator datasets for prospecting and messaging. - SponsorUnited
Sponsorship deal flow across brands, properties, and media with asset inventories and activation benchmarks. - Openmart
AI-driven SMB discovery using websites, reviews, and social signals to find growing local operators. - Leadbay
Predictive SMB discovery in low-signal markets using multi-source data and vertical models. - Common signals
Menu changes, new locations, sponsorships, local ownership, decision-maker contacts.
Best Healthcare data sources for outbound
- Definitive Healthcare
De-identified claims, affiliations, site of care, and HCP targeting for territory planning. - AcuityMD
MedTech procedure and device signals, HCP influence maps, and account prioritization. - Alpha Sophia
HCP and HCO profiles with procedure volume and market segmentation. - Ampliz
Healthcare provider and organization databases with geo, specialty, and contact attributes. - Common signals
Procedure volumes, claims trends, affiliations, formularies, clinical adoption signals.
Best Commercial Real Estate data sources for outbound
- Reonomy
Property and ownership intelligence, LLC mapping, comps, and market analytics. - PropertyShark
Title, ownership, sales history, liens, zoning, and comps with strong metro coverage. - PropStream
Nationwide property data, equity and distress indicators, comps, and investor marketing tools. - Common signals
Ownership changes, refinance risk, distress, likely-to-sell, new development filings.
Best Logistics and Transportation data sources for outbound
- ImportGenius
Bills of lading and shipment details for importer-exporter discovery and monitoring. - CarrierSource
Carrier directory with verified reviews, FMCSA data, and signals from active freight activity. - RigDig
Fleet profiles, safety and equipment history for prospecting carriers and buyers. - Valgen
Transportation data enrichment and prospecting tools for carriers, brokers, and services. - Carrier Details
FMCSA carrier data, safety and insurance with custom lead lists and APIs. - Common signals
Manifests, carrier reviews, equipment age, safety scores, new lanes, hiring.
Best Legal data sources for outbound
- Premonition Analytics
Court filings, attorney and judge performance metrics, and case outcomes for BD targeting. - Common signals
New case filings, venue trends, attorney win rates, matter types by firm.
Best Energy and Infrastructure data sources for outbound
- New Project Media
Developer pipelines, interconnection queues, permitting, and M&A for power and data centers. - Blackridge Research & Consulting
Project trackers and market reports across power, renewables, and infrastructure. - Common signals
Interconnect status, permitting milestones, PPA news, site control, EPC awards.
Best Education data sources for outbound
- K12Prospects
K-12 and higher-ed contacts with roles, programs, and district attributes for outreach. - RFP SchoolWatch
Bid and RFP monitoring across school districts, higher-ed, and state DOEs with alerts. - Common signals
New program launches, budget approvals, district leadership changes, RFPs.
Local Business Data & Franchise List Providers
- Clay + Maps/Yelp
Hyper-local targeting using business directories - ScrapeHero
Chain/franchise locations and counts - FranchiseGator
Broad franchise listings - FranchiseOpportunities
Broad franchise listings - Data Axle
Authoritative U.S. SMB dataset - Statista
Industry-wide sizing and benchmarks - IBISWorld
Industry-wide sizing and benchmarks
Best Scraping Tools for B2B Prospecting
- Clay
Steep learning curve; not ideal for beginners - PhantomBuster
LinkedIn, Maps, and social scraping flows - TexAu
Chrome-based scraper; affordable and flexible - Kadoa
Great for structured data scraping, no-code - Browse.ai
Visual tool for scraping tables and search results - Listly
Easy data table extraction from websites - Outscraper
Ideal for Google Maps bulk scraping - Hexomatic
Lightweight AI + scraper combo - IGLeads.io
Instagram lead extraction for eCom/local/service brands - Tweetscraper
Scrapes Twitter to identify creators, influencers, and niche social accounts — useful for PLG and eCom influencer targeting
Location-Based & Regional Segmentation Tools
- FlexIndex
See if a company is remote, hybrid, or in-office - SimilarWeb
Website traffic by country, industry - Apollo.io
HQ location + hiring intent filters - ZoomInfo
HQ location + hiring intent filters - Clay + Maps
ZIP code and regional targeting via search operators
Intent Data, Buyer Signals & Account Scoring Tools
- Bombora
Topic-based 3rd-party intent data - LeadSift
Lightweight intent alternative to Bombora - G2
2nd-party: buyer signals based on profile and page views - Leadfeeder
De-anonymizes site traffic for B2B intent - Albacross
EU-focused visitor intent platform - RB2B
1st-party signal platform for email + site behavior - Warmly
Real-time visitor intent signals from your site - Pursuit.us
Find SLED (State and Local Government Contracts) before the RFP goes out
Recommended GTM Data Stack for Startups & SMBs
Apollo.io
Category: All-in-one data, outreach & CRM
When to Add: Day 1
Why We Recommend It: Best all-in-one starting point — verified emails, sequences, basic CRM
Rb2b
Category: First-party intent (website engagement)
When to Add: Once you're getting traffic
Why We Recommend It: See who’s engaging with your brand and prioritize follow-up accordingly
Warmly
Category: First-party intent (website engagement)
When to Add: Once you're getting traffic
Why We Recommend It: See who’s engaging with your brand and prioritize follow-up accordingly
Smartlead.ai
Category: Dedicated email deliverability & scale
When to Add: When scaling sending
Why We Recommend It: Better inboxing, deliverability controls, and campaign separation from Apollo
Cognism
Category: Phone enrichment & compliance
When to Add: When adding cold calling
Why We Recommend It: Stronger phone match rates, compliance tools for Europe/EMEA
Kaspr
Category: Phone enrichment & compliance
When to Add: When adding cold calling
Why We Recommend It: Stronger phone match rates, compliance tools for Europe/EMEA
Storeleads
Category: Vertical-specific data
When to Add: When refining ICP
Why We Recommend It: eCom targeting, Shopify-focused
IGLeads.io
Category: Vertical-specific data
When to Add: When refining ICP
Why We Recommend It: Lead data from Instagram, great for local/service/creator
Crunchbase
Category: Vertical-specific data
When to Add: When refining ICP
Why We Recommend It: Funded startup and investor data
Stackshare
Category: Vertical-specific data
When to Add: When refining ICP
Why We Recommend It: Tech stack discovery
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