# What does S-TEC Corporation use?

S-TEC Corporation (s-tec.com) shows public evidence of 5 tools, according to runsonwhat (last checked 2026-10-10).

- Industry: Aerospace
- Based in: United States
- Founded: 1978

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Constant Contact](https://www.runsonwhat.com/reverse/constantcontact) | Marketing | Email records |  |
| [Ortto](https://www.runsonwhat.com/reverse/ortto) | Marketing | Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [Proofpoint](https://www.runsonwhat.com/reverse/proofpoint) | Security & Compliance | Email records |  |

## FAQ

### What tools does S-TEC use?

As of October 2026, runsonwhat has found 5 tools at S-TEC (s-tec.com) in public records. Go-to-market: Constant Contact and Ortto. Company Ops: Microsoft 365, SendGrid and Proofpoint. Last checked October 10, 2026.

### What email provider does S-TEC use?

S-TEC uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 701,710 companies runsonwhat tracks.

### What marketing software does S-TEC use?

S-TEC uses Constant Contact for marketing, alongside Ortto, according to runsonwhat (October 2026). runsonwhat found Constant Contact through email records that authorize Constant Contact. Constant Contact is used by 13,484 companies runsonwhat tracks.

### Does S-TEC use SendGrid?

Yes. runsonwhat found SendGrid at S-TEC through email records that authorize SendGrid. SendGrid is a Email Delivery tool used by 191,092 companies runsonwhat tracks.

### How does runsonwhat know what S-TEC uses?

runsonwhat reads public records only. Of the 5 tools at S-TEC, 4 were found through email records, 1 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and s-tec.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/s-tec.com (updated October 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.