All Live Sendgrid Sites List
SendGrid (now part of Twilio) is the leading transactional and marketing email API platform, used by 80,000+ companies to send 90 billion emails per month. SendGrid customers range from startups sending order confirmations to enterprise companies sending billions of monthly transactional emails.
Sendgrid — Market Intelligence
Best for: email deliverability consulting services, email marketing agencies, developer tools and APIs that integrate with sending infrastructure, CRM and marketing automation vendors, and compliance tools for email programmes. High-value segment: companies sending 5M+ emails/month who have advanced deliverability and compliance needs.
At startups and SMEs, the CTO or Engineering Lead controls SendGrid integration decisions. At larger companies, the Email Engineering or Marketing Technology team manages it, often with a separate director-level owner. Marketing teams use SendGrid's marketing campaigns product, managed by the CMO or VP Marketing.
Platform Facts
- ▸ 80,000+ companies use SendGrid globally
- ▸ 90 billion emails sent monthly through SendGrid infrastructure
- ▸ Twilio acquired SendGrid for $2 billion in 2019
- ▸ SendGrid is the default email infrastructure for thousands of SaaS products (embedded API)
Sendgrid Sites by Region
Site Traffic Tiers
| Monthly Traffic | % of Sites |
|---|---|
| High Traffic (>100K/mo) | 16% |
| Medium Traffic (10K–100K/mo) | 32% |
| Low/New (<10K/mo) | 52% |
What Is the All Live Sendgrid Sites List?
The All Live Sendgrid Sites List is a database of 204,510+ websites confirmed to be actively using Sendgrid. Compiled using BuiltWith technology intelligence, it provides direct access to website owners and administrators who are already users of the Sendgrid platform.
Unlike broad contact databases, this list is qualified by technology signal — making it uniquely relevant for companies selling complementary products, apps, themes, or services to Sendgrid users.
42% of listed sites are US-based. Email accuracy is 96%+, last verified Q3 2026.
What's Included
| Field | Status |
|---|---|
| Website URL | ✓ Verified |
| Owner/Admin Email | ✓ Included |
| Business Name | Where Available |
| Contact Name | Where Available |
| Country | ✓ Included |
| Traffic Tier | ✓ Estimated |
| Technology Confirmed | ✓ Sendgrid |
Who Uses This Database
Plugin & App Developers
Sell Sendgrid plugins, apps, and extensions to 205K+ active Sendgrid site owners directly.
Theme & Design Vendors
Reach Sendgrid website owners for theme sales, design services, and visual optimisation tools.
SaaS & Software
Sell complementary SaaS tools — analytics, marketing, CRM, automation — to Sendgrid users.
Agency Services
Offer SEO, PPC, and digital marketing services to 205K+ Sendgrid site owners needing help.
Cold Email Outreach
Launch targeted outreach to Sendgrid website owners — a highly specific, technology-qualified audience.
Competitive Intelligence
Identify businesses using competing or complementary technologies and reach them with targeted messaging.
Tools & Guides for Sendgrid Outreach
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