Research path

Due Diligence Analysts

A focused view of OSINT4ALL tool profiles mapped to this investigation path.

38 mapped profiles No pay-to-rank ordering Open full filters anytime

How to use this path

  • Start broad here, then narrow in the directory filters.
  • Open profiles for limits, pricing, and verification notes.
  • Use collections when you need a workflow stack, not one tool.

Tool profile

OpenAlex

Open scholarly works, authors, institutions, and funders graph

WorkflowDiscovery, Enrichment AccessFreemium
Editorial
Open profile
USAspending.gov official-page screenshot

Official-page screenshot

U.S. Treasury / USAspending.gov

Verified 2026-06-21

Official U.S. federal award spending search

Verification: Pending Verification Workflow: Discovery, Verification Pricing: Free

Best for: U.S. federal contracts, grants, loans, recipient checks, agency spending, award IDs, location filters, and public spending trend review.

Editorial

Tool profile

USAspending.gov

Official U.S. federal award spending search

WorkflowDiscovery, Verification AccessFree
Editorial
Open profile
SAM.gov official-page screenshot

Official-page screenshot

U.S. General Services Administration

Verified 2026-06-21

U.S. federal entity registration and award-management search

Verification: Pending Verification Workflow: Verification Pricing: Free

Best for: U.S. contractor and grant-recipient entity checks, Unique Entity ID context, federal award participation, opportunity leads, and registration-status review.

Editorial

Tool profile

SAM.gov

U.S. federal entity registration and award-management search

WorkflowVerification AccessFree
Editorial
Open profile

Tool profile

TED – Tenders Electronic Daily

EU public procurement notices and awarded-contract search

WorkflowDiscovery, Verification AccessFree
Editorial
Open profile

Tool profile

MarineTraffic

AIS vessel tracking and maritime movement intelligence

WorkflowDiscovery, Verification AccessFreemium
Editorial
Open profile
FullHunt official-page screenshot

Official-page screenshot

FullHunt

Verified 2026-05-26

Attack-surface discovery and domain intelligence platform

Verification: Pending Verification Workflow: Discovery, Enrichment Pricing: Freemium

Best for: Expanding a scoped domain or organization into public assets, technologies, services, and exposure clues before validation.

Editorial

Tool profile

FullHunt

Attack-surface discovery and domain intelligence platform

WorkflowDiscovery, Enrichment AccessFreemium
Editorial
Open profile

Tool profile

ICIJ Offshore Leaks Database

Investigative offshore entity and intermediary database

WorkflowDiscovery, Verification AccessFree
Editorial
Open profile

Tool profile

GLEIF LEI Search

Legal Entity Identifier search for company identity checks

WorkflowVerification AccessFree
Editorial
Open profile

Tool profile

LinkedIn Ad Library

Searchable LinkedIn ad transparency database

WorkflowDiscovery AccessFree
Editorial
Open profile
CourtListener official-page screenshot

Official-page screenshot

Free Law Project

Verified 2026-05-27

Public U.S. legal opinions and docket context

Verification: Editorial review Workflow: Discovery Pricing: Free

Best for: U.S. legal, litigation, party, docket, court-opinion, and public-record context during due diligence or journalism.

Editorial

Tool profile

CourtListener

Public U.S. legal opinions and docket context

WorkflowDiscovery AccessFree
Editorial
Open profile

Editorial proof card

Open Ownership

Verified 2026-05-27

Archived Open Ownership Register context and beneficial-ownership resources

Verification: Editorial review Workflow: Enrichment Pricing: Free

Best for: Understanding legacy Open Ownership Register references and routing beneficial-ownership research toward current country, standards, and source-record context.

Editorial

Tool profile

OpenOwnership Register

Archived Open Ownership Register context and beneficial-ownership resources

WorkflowEnrichment AccessFree
Editorial
Open profile

Tool profile

Ahrefs

Backlink and search visibility research

WorkflowEnrichment AccessPaid
Editorial
Open profile
Google Dataset Search official-page screenshot

Official-page screenshot

Google

Verified 2026-05-07

Dataset discovery search engine

Verification: Editorial review Workflow: Discovery Pricing: Free

Best for: Use it when a question needs source datasets rather than articles, pages, or tool-generated summaries.

Editorial

Tool profile

Google Dataset Search

Dataset discovery search engine

WorkflowDiscovery AccessFree
Editorial
Open profile

Tool profile

Wikidata

Structured open knowledge graph

WorkflowEnrichment AccessFree
Editorial
Open profile

Tool profile

Companies House

Primary UK company registry and filing search

WorkflowVerification AccessFree
Editorial
Open profile

Editorial proof card

U.S. Securities and Exchange Commission

Verified 2026-05-27

Primary U.S. securities filings and company disclosures

Verification: Editorial review Workflow: Verification Pricing: Free

Best for: Primary U.S. public-company, fund, executive, ownership, and securities filing evidence.

Editorial

Tool profile

SEC EDGAR

Primary U.S. securities filings and company disclosures

WorkflowVerification AccessFree
Editorial
Open profile

Tool profile

Talkwalker

Consumer intelligence and social listening

WorkflowMonitoring AccessEnterprise
Editorial
Open profile

Tool profile

Brandwatch

Consumer research and social intelligence

WorkflowMonitoring AccessEnterprise
Editorial
Open profile