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Company Email Format

Digital-marketing analytics – data from stirista.com

Find out how a company formats its business email addresses, e.g. {first}.{last}@acme.com, with a confidence score. Data from Stirista.

4 credits
Stirista logo

Seller

Stirista
stirista.com logo

Provider

stirista.com
digital-marketingAnalytics

Company Email Format

Digital-marketing analytics – data from stirista.com

4 credits

Find out how a company formats its business email addresses, e.g. {first}.{last}@acme.com, with a confidence score. Data from Stirista.

Stirista logo
SellerStirista
stirista.com logo
Providerstirista.com
CoverageUnited States businesses
Company Email Format

Bulk data endpoint — not a realtime API. Each pull queries the source live and can return thousands to millions of rows, so responses take seconds, not milliseconds, and arrive as a downloadable CSV with a JSON preview.

Input parameters

8 parameters · 1 required

This insight accepts 8 parameters to customize your result. 1 is required, marked with *.

STR
domains*

One or more company domains (max 10). Repeat the parameter or comma-separate values, e.g. stirista.com,example.com.

e.g. stirista.com
STR
domain

Company website domain you asked about.

Enter string…
email_domain: Domain the company's business email addresses use.email_pattern: Most common address format, e.g. {first}.{last}. {f} / {l} = first initial.example_address: The pattern applied to a placeholder name (Jane Doe). Not a real address.confidence: Share of analysed addresses that follow email_pattern (0 to 1).emails_analyzed: How many business addresses the format was inferred from.secondary_pattern: Second most common format, when there is one.

About This Feed

Company Email Format

Find out how a company formats its business email addresses — for example {first}.{last}@acme.com — with a confidence score, so you can address outreach correctly without guessing.

What you send

  • domains — up to 10 per request. Repeat the parameter or comma-separate values. Full URLs and www. prefixes are accepted.

What you get

One row per domain: the company domain, the email_domain it uses, the most common email_pattern, an example_address applied to a placeholder name (Jane Doe — never a real person), a confidence score, how many addresses the format was inferred from (emails_analyzed), and the runner-up secondary_pattern.

Good to know

  • A format is only reported when it can be inferred from at least 3 known business addresses. Companies below that are listed in meta.insufficient; domains Stirista can't match are in meta.unmatched. You aren't charged when nothing is returned.
  • Returns no names or email addresses of real people.

Who this is for

Data AnalystsBusinesses & AnalystsResearchers
Categorydigital-marketing
Data Sourcestirista.com
CoverageUnited States businesses

Data accuracy and methodology verified. Originally released October 6, 2026.

Tags

b2bemail-formatemail-patternsales-prospectingaccount-based-marketingemail-deliverabilitylead-enrichment

How requests & billing work

1

This endpoint has 1 required parameter — marked with a red * above. You must supply a value for it before making a request. Calls missing any required value are rejected before you're charged.

2

Every request returns a single CSV file — no pagination. You get a preview and a download link in the response. Each request is capped at 10 rows for speed and safety.

3

You're charged 4 credits per request on 200 OK — not per row. One request = 4 credits, whether you get 10 rows or 10.

4

The only reason to request less data is relevance — use filters to scope results. Tighter filters = a smaller, faster file at the same cost.

5

Need rows in the response body instead of a file? Pass delivery: "inline" and rows come back directly in the response, subject to the same 10-row cap. Handy for live-UI integrations.

Example

A query returning the full 10 rows → 1 request → 4 credits, delivered as a single CSV. Filter to a subset → still 1 request → 4 credits, smaller file.

Code ExamplesSign in to get your key
Delivery:
Default · full result as a file, preview + download URL in response
🔑

API key required

Sign in to auto-populate your key and make live requests. The endpoint URL and code are real — only the key is gated.

Sign in →
https://stirista.api.spartera.com/endpoints/v1/company-email-format
# Bulk export to GCS — full result delivered as a single file.
# This is the default; you don't need to pass a delivery flag.
# Response carries a preview + download_url; you GET that URL to grab the file.
curl -X POST "https://stirista.api.spartera.com/endpoints/v1/company-email-format" \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "format": "csv",
    "limit":  1000000
  }'

# Then pull the actual file (URL is public-read GCS — no auth needed):
# curl -O "<download_url from response.response.download_url>"

Response envelope: data.spartera (billing/file stats) · data.response.download_url (HTTPS link to file) · data.response.preview (first 50 rows)

Common Questions

Company Email Format is built to answer this directly. Find out how a company formats its business email addresses, e.g. {first}.{last}@acme.com, with a confidence score. Data from Stirista. Returned fields include domains, domain, email_domain, email_pattern. Data is sourced from stirista.com and delivered on demand by Stirista through Spartera.

Company Email Format is built to answer this directly. Find out how a company formats its business email addresses, e.g. {first}.{last}@acme.com, with a confidence score. Data from Stirista. Returned fields include domains, domain, email_domain, email_pattern. Data is sourced from stirista.com and delivered on demand by Stirista through Spartera.

Company Email Format returns the underlying records rather than a pre-computed leaderboard, so you rank them on whichever measure the question calls for. Sort on the returned fields (domains, domain, email_domain, email_pattern). Data is sourced from stirista.com and delivered on demand by Stirista through Spartera.

Find out how a company formats its business email addresses, e.g. {first}.{last}@acme.com, with a confidence score. Data from Stirista.

Each pull costs 4 credits (from $2.00), billed only on a successful 200 OK. You're charged once per request — whether the file holds 10 rows or 100,000 — not per row.

The data is pulled live from stirista.com at request time and delivered by Stirista. Each request queries the source directly rather than returning a cached snapshot.

Sign up for a free Spartera account, add credits, then call the endpoint from the marketplace or directly over REST with your API key. Each request returns a downloadable CSV plus a JSON preview and a download URL in the response.

Each request returns the full result as a downloadable CSV file, with a JSON preview and a download URL in the response. If you'd rather receive rows directly in the API response body, pass delivery: "inline".

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Price

4 credits

4 credits · from $2.00 per request*

— or —
GDPR-compliant · *Billed on 200 OK only

Not for AI training

Analysis with AI tools is permitted. Using this data to train, fine-tune or improve a model is not.

Set by the seller · Binding under the marketplace terms

Why sign up?

  • Pull this and 12,000+ other analytical products on-demand
  • Flexible credit packages from $0.50/credit
  • Download results as CSV, share, and set alerts
  • Call directly via REST API with your own key
  • GDPR-compliant · billed only on a successful 200 OK
Response Schema — per data row
domainstring
email_domainstring
email_patternstring
example_addressstring
confidencefloat
emails_analyzedinteger
secondary_patternstring
—
rate limit
—
Success rate
—
Avg latency

Region

United States businesses

Parameters

8enabled · 1 required, 7 optional

Sources

  • Show sources information

    Data for the following insight was sourced from the following:

    stirista.comstirista.com
    Visit Provider
  • Show publisher information
    stirista.comstirista.com
    Visit Publisher
  • How to Cite

    Chicago Style:

    Stirista. "Company Email Format." Spartera Analytics Marketplace, 2026. https://marketplace.spartera.com/products/company-email-format/b241567e-437f-4155-be71-4a3325cde5ca

    MLA Style:

    Stirista. "Company Email Format." Spartera Analytics Marketplace, 2026, https://marketplace.spartera.com/products/company-email-format/b241567e-437f-4155-be71-4a3325cde5ca.

    APA Style:

    Stirista. (2026). Company Email Format. Spartera Analytics Marketplace. https://marketplace.spartera.com/products/company-email-format/b241567e-437f-4155-be71-4a3325cde5ca

Details

PublishedOct 6, 2026
Data typeTime-series rows
FormatJSON preview + CSV
Response timeSeconds (bulk)
Vol. per session10+ rows
PricingPer pull (200 OK)