Market Sizing Data Sources

Curated list of credible sources for market research and sizing analysis. Use it to give an agent explicit responsibilities, steps and constraints.

Editorial note: curated source snapshot published by Collider.club under the MIT License. Source attribution is preserved in the front matter.

Source snapshot

Market Sizing Data Sources

Curated list of credible sources for market research and sizing analysis.

Industry Research Reports

Premium Research Firms

Gartner (https://www.gartner.com)

• Technology market forecasts and sizing
• Magic Quadrants for competitive positioning
• Typical cost: $5K-$50K per report
• Best for: Enterprise software, IT services, emerging tech

Forrester (https://www.forrester.com)

• Business technology and digital transformation
• Wave evaluations for vendor comparison
• Typical cost: $3K-$30K per report
• Best for: Marketing tech, customer experience, B2B

IDC (https://www.idc.com)

• IT market intelligence and sizing
• Detailed segment breakdowns
• Typical cost: $4K-$40K per report
• Best for: Hardware, software, IT services

McKinsey (https://www.mckinsey.com/featured-insights)

• Free insights and reports
• Strategic industry analysis
• Best for: Industry trends, macroeconomic context

Accessible Research

Statista (https://www.statista.com)

• Cost: $39/month individual, $199/month business
• Coverage: 80,000+ topics across industries
• Best for: Quick market size estimates, charts, trends

CB Insights (https://www.cbinsights.com)

• Cost: Custom pricing (typically $10K+/year)
• Coverage: Venture capital, startup markets
• Best for: Emerging markets, competitive intelligence

PitchBook (https://pitchbook.com)

• Cost: Institutional pricing
• Coverage: Private company valuations, M&A, VC
• Best for: Startup valuations, funding trends

Grand View Research (https://www.grandviewresearch.com)

• Cost: $2K-$5K per report
• Coverage: B2C and emerging markets
• Best for: Consumer markets, healthcare, cleantech

Government and Public Data

U.S. Government Sources

U.S. Census Bureau (https://www.census.gov)

• Free, authoritative demographic data
• Economic census every 5 years
• Best for: Business counts, demographics, spending

Bureau of Labor Statistics (https://www.bls.gov)

• Free employment and economic data
• Industry-specific statistics
• Best for: Employment trends, wages, productivity

SEC EDGAR (https://www.sec.gov/edgar)

• Free public company filings
• 10-K, 10-Q reports with segment revenue
• Best for: Validating market size with public company data

Data.gov (https://www.data.gov)

• Free government datasets
• Aggregates across agencies
• Best for: Specialized industry data

International Sources

OECD (https://data.oecd.org)

• Free international economic data
• Best for: Cross-country comparisons

World Bank (https://data.worldbank.org)

• Free global development data
• Best for: Emerging markets, macro trends

Eurostat (https://ec.europa.eu/eurostat)

• Free European Union statistics
• Best for: European market sizing

Trade Associations

Industry associations often publish market research:

Software & SaaS

• Software & Information Industry Association (SIIA)
• Cloud Security Alliance (CSA)

E-commerce & Retail

• National Retail Federation (NRF)
• Digital Commerce 360

Financial Services

• American Bankers Association (ABA)
• Financial Technology Association (FTA)

Healthcare

• Healthcare Information and Management Systems Society (HIMSS)
• American Hospital Association (AHA)

Manufacturing

• National Association of Manufacturers (NAM)
• Industrial Internet Consortium (IIC)

Company and Customer Data

B2B Databases

LinkedIn Sales Navigator ($99/month)

• Company and employee counts
• Industry filters
• Best for: B2B customer counting

ZoomInfo (Custom pricing)

• Company databases with firmographics
• Contact data
• Best for: B2B TAM calculations

Crunchbase ($29-$99/month)

• Startup company data
• Funding and employee information
• Best for: Tech startup markets

BuiltWith ($295-$995/month)

• Technology usage data
• Website analytics
• Best for: Technology adoption sizing

Consumer Data

Euromonitor (Custom pricing)

• Consumer market research
• Best for: B2C product markets

Nielsen (Custom pricing)

• Consumer behavior and media
• Best for: CPG, retail, media markets

Mintel (Custom pricing)

• Consumer trends and insights
• Best for: B2C products and services

Search and Discovery Tools

Market Research Aggregators

Research and Markets (https://www.researchandmarkets.com)

• Aggregates reports from 100+ publishers
• $500-$10K per report
• Search across all major research firms

MarketsandMarkets (https://www.marketsandmarkets.com)

• Custom and syndicated research
• $4K-$10K per report
• Good for niche B2B markets

Free Search Tools

Google Scholar (https://scholar.google.com)

• Free academic research
• Best for: Emerging technologies, academic validation

SSRN (https://www.ssrn.com)

• Free working papers
• Best for: Financial services, economics

arXiv (https://arxiv.org)

• Free preprints in CS, physics, etc.
• Best for: AI/ML, scientific markets

Competitive Intelligence

Public Company Analysis

Yahoo Finance (Free)

• Public company financials
• Segment revenue from earnings

Seeking Alpha (Free + Premium)

• Earnings transcripts
• Analyst estimates

Public company investor relations

• Annual reports (10-K)
• Investor presentations

Private Company Intelligence

PrivCo (Custom pricing)

• Private company financials
• M&A transaction data

Owler (Free + Premium)

• Company profiles and news
• Revenue estimates

SimilarWeb (Free + Premium)

• Website traffic analytics
• Best for: Online business sizing

Survey and Primary Research

Survey Tools

SurveyMonkey ($25-$75/month)

• DIY surveys
• Best for: Customer willingness to pay

Typeform ($25-$83/month)

• Conversational surveys
• Best for: User research

Qualtrics (Enterprise pricing)

• Professional research platform
• Best for: Large-scale studies

Panel Providers

Respondent.io ($100-$200 per response)

• Recruit professionals for interviews
• Best for: B2B customer research

UserTesting ($49 per participant)

• User research and testing
• Best for: Product validation

Google Surveys ($0.10-$3.50 per response)

• Quick consumer surveys
• Best for: Basic consumer insights

Data Quality Checklist

When evaluating sources:

Authority

• Who published the research?
• What's their reputation?
• Do they have industry expertise?

Methodology

• How was data collected?
• What's the sample size?
• When was research conducted?

Recency

• Is data current (< 2 years old)?
• Has market changed significantly?
• Are growth rates still applicable?

Consistency

• Do multiple sources agree?
• Are definitions consistent?
• Do numbers triangulate?

Relevance

• Does it match your market definition?
• Is geography appropriate?
• Are segments aligned?

Free vs. Paid Strategy

Start with free sources:

1. Government data for customer counts
2. Public company filings for segment revenue
3. Trade associations for industry trends
4. Google Scholar for academic research

Upgrade to paid when:

• Raising institutional funding (investors expect premium sources)
• Need detailed segment breakdowns
• Market is niche or emerging
• Free sources are outdated or insufficient

Cost-effective approach:

• Buy 1-2 key reports that cover your core market
• Use free sources for triangulation
• Supplement with primary research (customer interviews)
• Cite mix of free and paid sources

Citation Best Practices

Always cite sources in market sizing:

Format:

Market Size: $X.XB
Source: [Publisher], [Report Name], [Date]
URL: [link if available]

Example:

Email Marketing Software TAM: $7.5B (2024)
Source: Gartner, "Market Share: Email Marketing Software, Worldwide, 2024"
Note: Includes all email marketing software revenue globally

Include:

• Publisher and report name
• Publication date
• Geography and scope
• Any adjustments made
• Link to source (if public)

Keeping Research Current

Set Google Alerts

• Industry keywords
• Company names
• Market terms

Follow Research Firms

• Twitter accounts
• LinkedIn updates
• Free newsletter summaries

Track Public Companies

• Earnings calendars
• Investor relations pages
• Annual reports

Join Industry Groups

• LinkedIn groups
• Slack communities
• Trade associations

Review Annually

• Update market size with new data
• Adjust growth assumptions
• Revisit methodology if market changed

Emergency Research Guide

Need market size in < 2 hours?

1. Check Statista (15 min) - Quick industry overview
2. Find public companies (30 min) - Get segment revenue from 10-Ks
3. LinkedIn search (20 min) - Count potential B2B customers
4. Google Scholar (20 min) - Find academic papers
5. Calculate bottom-up (30 min) - Customers × Price
6. Triangulate (15 min) - Compare sources

Document everything:

• Write down all sources
• Note all assumptions
• Show your methodology
• Caveat data quality

Better to have a defensible estimate with clear limitations than no data at all.

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