Overall Cloud Provider Market Share
Among the 13,293 companies with detected cloud infrastructure in the AWSExpansion Cloud Index, AWS holds a commanding lead across every segment we measured — industry, company size, geography, and funding stage.
| Cloud Provider | Companies | Share | Distribution |
|---|---|---|---|
| Amazon Web Services (AWS) | 9,522 | 71.6% | |
| Microsoft Azure | 2,292 | 17.2% | |
| Google Cloud Platform | 1,125 | 8.5% | |
| Multi-Cloud (2+ providers) | 354 | 2.7% |
71.6% of companies with identifiable cloud infrastructure run on AWS — compared to 17.2% on Azure and 8.5% on GCP. AWS's lead is consistent across sectors, geographies, and company sizes.
Key Findings for Sales & BD Teams
Cloud Share by Industry Sector
AWS dominates across all major sectors, but the margin varies significantly. Technology and Financial Services show the highest absolute AWS adoption. Healthcare shows the strongest Azure presence relative to its peers, likely driven by Microsoft 365 and HIPAA compliance tooling.
| Sector | Top Cloud | AWS Share | Azure Share | GCP Share |
|---|---|---|---|---|
| Technology | AWS | 73% | 15% | 10% |
| Financial Services | AWS | 69% | 22% | 7% |
| Healthcare | AWS | 64% | 28% | 6% |
| Consumer / Retail | AWS | 76% | 13% | 9% |
| Media & Entertainment | AWS | 78% | 11% | 9% |
| Professional Services | AWS | 67% | 24% | 7% |
| Education | AWS | 58% | 30% | 10% |
| Energy & Industrials | AWS | 65% | 26% | 7% |
Cloud Share by Company Size
AWS's lead holds at every employee tier, but Azure and GCP each show relative strength at specific size bands. Azure performs best at 10,000+ employee companies where Microsoft enterprise agreements (EA) drive broad adoption. GCP over-indexes in early-stage startups, particularly those that have participated in Google for Startups programs.
| Employee Count | AWS | Azure | GCP | Multi |
|---|---|---|---|---|
| 10,001+ | 61% | 28% | 8% | 3% |
| 5,001–10,000 | 67% | 21% | 9% | 3% |
| 1,001–5,000 | 71% | 17% | 9% | 3% |
| 201–1,000 | 74% | 14% | 9% | 3% |
| 51–200 | 76% | 12% | 10% | 2% |
| 1–50 | 73% | 13% | 12% | 2% |
Cloud Share by Geography (Top 8 Markets)
AWS leads in every country tracked. The US shows the highest AWS concentration at ~74%. European markets show modestly stronger Azure presence, reflecting Microsoft's GDPR compliance positioning and existing enterprise relationships through Office 365.
| Country | AWS | Azure | GCP |
|---|---|---|---|
| 🇺🇸 United States | 74% | 15% | 9% |
| 🇬🇧 United Kingdom | 69% | 20% | 9% |
| 🇩🇪 Germany | 65% | 25% | 8% |
| 🇨🇦 Canada | 71% | 18% | 9% |
| 🇦🇺 Australia | 70% | 19% | 9% |
| 🇮🇳 India | 72% | 17% | 10% |
| 🇫🇷 France | 64% | 26% | 8% |
| 🇸🇬 Singapore | 73% | 16% | 9% |
Implications for AWS Partners & ISVs
The TAM you can actually reach
Of the 67,813 companies in the AWSExpansion Cloud Index, 9,522 are confirmed AWS customers — companies already running on the platform you sell on or alongside. This is the warm market: they already have AWS accounts, procurement relationships, and likely an existing cost structure AWS sellers are familiar with.
The greenfield opportunity
The 54,520 companies with undetected cloud infrastructure represent the next migration wave. Many are still running on-premises or on legacy hosting. For AWS Partners selling migration, modernization, or cloud-adjacent services, this is the prospecting universe to build pipeline from.
Multi-cloud is rare — vertical specialization wins
Only 2.7% of detected companies run true multi-cloud environments. For partners tempted to market across all three hyperscalers, the data suggests a different strategy: deep specialization on AWS in 2–3 verticals outperforms horizontal multi-cloud positioning. Technology, Fintech, and Media companies show the highest AWS density — natural hunting grounds for AWS partners.
Methodology
The AWSExpansion Cloud Index detects cloud provider usage through a combination of passive signals:
- DNS analysis: CNAME records pointing to AWS CloudFront, Azure CDN, Google Cloud CDN, and provider-specific domains
- HTTP response headers: Server headers, X-Powered-By, CDN-specific headers (x-amz-*, x-ms-*, x-goog-*)
- IP geolocation: ASN lookup against AWS, Azure, and GCP published IP ranges
- TLS certificate signals: Certificate issuer and SAN patterns associated with managed cloud cert services
Coverage note: Detection is based on public-facing signals only. Companies that route all traffic through a third-party CDN or WAF (Cloudflare, Akamai, Fastly) may show as undetected even if they run on a major cloud. The 13,293 detected figure is a conservative lower bound.
How to Use This Data
For Sales Teams
Use the AWSExpansion Directory to filter companies by cloud provider, sector, employee count, and geography. Build precise target lists of companies already on your cloud platform — or companies in your sector that haven't yet migrated.
For BD & Partnerships
The multi-cloud data (354 companies) is a high-value list: these companies have already demonstrated willingness to adopt multiple cloud services, making them strong candidates for ISV and partner co-sell motions.
For Marketing Teams
Sector-level cloud share data validates ICP hypotheses and supports ABM (Account-Based Marketing) campaigns. The data can be used to size addressable markets and inform messaging around cloud-specific pain points.
Citation Policy
This data is free to cite. If you reference AWSExpansion Cloud Index data in articles, reports, or presentations, please link to cloud.awsexpansion.com/report.html as the source. Data is updated quarterly.
Explore the Full Dataset
67,813 companies. Filter by cloud, sector, size, country, and funding stage. Free access.
Open the Directory → Download stats.json