How do I find someone's email at 15Five?

Use emailfinder.dev's Person Email endpoint with the person's full name and domain 15five.com. Or use the LinkedIn Lookup endpoint with their LinkedIn profile URL. Both verify the email in real-time via SMTP.

How many employees does 15Five have?

15Five has approximately 296 employees, headquartered in San Francisco.

Find Email Addresses at 15Five (2026)

15five.com · 296 employees · San Francisco, US · Founded 2011

About 15Five

The performance management platform that drives business results.

15Five is the strategic performance management platform that drives action and impact, helping businesses and their people thrive. HR leaders are empowered with data-driven insights and guided recommendations, while people managers are transformed into changemakers, all within the flow of work, accelerating employee engagement, performance, and retention. 15Five combines the power of generative AI...

How to find email addresses at 15Five

By name and domain

Pass the person's full name and 15five.com to the Person Email endpoint. emailfinder.dev tests all common email patterns against the live mail server and returns the verified address.

GET /api/find-email/person?full_name=Jane+Doe&domain=15five.com

By LinkedIn profile

If you have the person's LinkedIn URL, pass it to the LinkedIn Lookup endpoint. Returns the verified email plus their name, title, and company.

GET /api/find-email/linkedin?linkedin_url=https://linkedin.com/in/...

By role (decision makers)

Find the CEO, CTO, VP of Sales, or any other decision maker at 15Five without knowing their name.

GET /api/find-email/decision-maker?domain=15five.com&decision_maker_category=ceo

All emails at 15Five

Discover up to 20 verified email addresses at 15five.com in a single request.

GET /api/find-email/company?domain=15five.com

Frequently asked questions

What is the email format at 15Five?

Most companies use formats like first.last@15five.com, first@15five.com, or flast@15five.com. emailfinder.dev tests all patterns against the live mail server and returns only the verified, deliverable address — no guessing.

How do I find the CEO email at 15Five?

Use the Decision Maker endpoint with domain=15five.com&decision_maker_category=ceo. The API identifies the current CEO, verifies their email via SMTP, and returns the confirmed address with their name and title.

Are the emails verified?

Yes. Every email returned by emailfinder.dev is verified in real-time via SMTP. The API connects to 15five.com's mail server and confirms the mailbox exists before returning the address. You only pay for verified results.

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Company details

Domain: 15five.com
Industry: Software Development
Employees: 296
Headquarters: San Francisco, US
Founded: 2011
Website: 15five.com
LinkedIn: View profile

Specialties

Employee Feedback ReportingCulture ToolsEmployee EngagementPerformance ReviewsPeople ManagementManagement By ObjectivesStatus ReportsEmployee Surveys

Pay only for results. Credits start at €0.009 per verified email. No monthly subscription. No charge when an email is not found.