The most common 500 Startups email format is {first}@500.co (e.g. jane@500.co), used in about 92% of observed 500 Startups work emails. 500 Startups uses 6 address formats in total.
Most likely format — based on 190 observed addresses
Find anyone’s 500 Startups email
Enter a name — 500 Startups’s email pattern is in our data, so we can find the address. Start free to reveal & verify it.
Full finder is 20 credits · verification is 1 credit. Powered by the VeriMails engine.
500 Startups email formats
91.6% of observed 500 Startups addresses use the {first}@ format.
Email formatExampleShare
{first}@500.co
Examplejane@500.co
Share91.6%
{first}.{last}@500.co
Examplejane.doe@500.co
Share4.7%
{first}{l}@500.co
Examplejaned@500.co
Share1.1%
{last}@500.co
Exampledoe@500.co
Share1.1%
{first}{last}@500.co
Examplejanedoe@500.co
Share1.1%
{f}{l}@500.co
Examplejd@500.co
Share0.5%
Derived from 190 real observed addresses · data refreshed 2026-05-30. Role-based inboxes (info@, sales@, …) are excluded from format detection.
Verify the pattern before you send
Start with the format that appears most often. For 500 Startups, that means testing {first}@500.co first, then verifying the exact address before it reaches your CRM or sequencer. A pattern can be common and still produce bad guesses when a person uses a nickname, a middle initial, a regional mailbox, or an older alias.
VeriMails checks syntax, MX records, SMTP behavior, disposable domains, and catch-all detection so you can keep valid addresses and skip risky ones. For larger files, credits start at $19 for 10,000 verifications and never expire. Create a free account, test the pattern on a few addresses, then buy more credits only when you need volume. Run the check again before a large campaign if the list is old, because domains change mail routing and people leave.
The most common 500 Startups email format is {first}@500.co (for example jane@500.co), used in about 92% of observed 500 Startups work addresses. 500 Startups also uses 5 other formats for name collisions.
How accurate is this 500 Startups email format?
This format is derived from 190 real 500 Startups addresses observed across our data, not guessed. To confirm a specific address, use the live verifier above — it checks deliverability in real time.
How do I find and verify a specific person's 500 Startups email?
Apply the most common pattern to the person's name (e.g. jane@500.co), then verify it on this page — or use the Find tab to get the likely address from their name automatically.
What other email formats does 500 Startups use?
Beyond {first}@500.co, observed formats include {first}.{last}@500.co, {first}{l}@500.co, {last}@500.co, {first}{last}@500.co, {f}{l}@500.co, in descending order of frequency.
Was this helpful?
Find and verify work emails at any company
Build a verified prospect list one company at a time — find the right address, confirm it’s deliverable, then reach out with confidence.