As of October 8, 2026, TechLeads detects Sigstr on 1 website: 0.00% of Marketing Platform detections, the 93rd most-used of 106 Marketing Platform technologies we track.
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TechLeads. "Companies Using Sigstr." Data as of October 8, 2026. https://techleads.fyi/technology/sigstrHTML link
<a href="https://techleads.fyi/technology/sigstr">Companies using Sigstr (TechLeads data)</a>Sample results for Sigstr
| Rank | Icon | Website | Title | Description | Company | Country | Language |
|---|
Complete Sigstr website dataset in CSV. One-time purchase.
Secure checkout · 7-day download accessThe most-used Marketing Platform technologies in the TechLeads index, by number of websites. Sigstr accounts for 0.00% of Marketing Platform detections (1 websites).
| Technology | Websites |
|---|
| Share of Marketing Platform |
|---|
| Sendgrid | 522,101 | 55.0% |
| Sendinblue | 190,288 | 20.0% |
| MailJet | 183,055 | 19.3% |
| Constant Contact Mail | 18,013 | 1.9% |
| Campaign Monitor | 11,348 | 1.2% |
| AWeber Email | 10,448 | 1.1% |
| EKM Email Marketing | 2,989 | 0.31% |
| Sailthru | 2,738 | 0.29% |
| Flodesk | 1,785 | 0.19% |
| SendFox | 1,375 | 0.14% |
TechLeads scans public websites and identifies Sigstr from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily; this page uses data from October 8, 2026. Counts only include websites we have scanned, so they can differ from other providers.
Sigstr turns company email into a marketing channel.
Technologies most frequently detected on the same websites as Sigstr.
1 new sites in the last 12 weeks
Sites where we first detected Sigstr, by week (UTC, weeks start Monday). Counts follow our discovery coverage, so weekly totals can vary.
Sigstr turns company email into a marketing channel.
Our comprehensive database contains 1 websites using Sigstr, making it the most complete Sigstr sites list available. This Sigstr customer websites directory helps businesses detect websites using Sigstr and identify potential leads.
Websites using Sigstr commonly also use Amazon SES, Office 365 Mail, Salesforce, Microsoft ASP.NET, Cloudflare DNS — reflecting typical Sigstr technology stacks.
Our Sigstr technology detection system scans millions of websites to identify those powered by Sigstr. This list of sites with Sigstr includes detailed information such as company names, contact details, social media profiles, and website rankings. Whether you're looking for top websites with Sigstr or exploring Sigstr adoption trends, our database provides comprehensive insights.
Each entry in our Sigstr sites list includes valuable data points: domain name, global ranking, company information, contact details, social media links. This makes it easy to detect websites using Sigstr and reach out to potential customers or partners.
Get instant access to the full list of sites with Sigstr in CSV format. Our dataset includes all 1 Sigstr customer websites with complete contact information, perfect for lead generation, market research, and competitive analysis. The data is regularly updated to ensure accuracy and includes the latest Sigstr powered websites.