How many email patterns does Respondent use?

Respondent uses 4 known email patterns.

What domain does Respondent use for work emails?

Respondent uses respondent.io for work email addresses.

Most Common Email Formats at Respondent

The most accurate and popular Respondent's email format is First.Last@respondent.io (ex. John.Doe@respondent.io). Respondent also uses First.Middle@respondent.io (ex. John.Michael@respondent.io) as email structures. Respondent uses up to 4 different email patterns.

Respondent Email Formats	Example	Percentage
First.Last@respondent.io	John.Doe@respondent.io	95%
First.Middle@respondent.io	John.Michael@respondent.io	2%
First@respondent.io	John@respondent.io	2%
F.Last@respondent.io	J.Doe@respondent.io	1%

Respondent Email Formats

Example

Percentage

First.Last@respondent.io

John.Doe@respondent.io

95%

First.Middle@respondent.io

John.Michael@respondent.io

First@respondent.io

John@respondent.io

F.Last@respondent.io

J.Doe@respondent.io

Frequently Asked Questions

What does Respondent do?

Respondent was founded in 2016. The company's main headquarters is located in 4th Street Brooklyn, New York United Statesoperates in the Research Services industry, along with similar companies like PlaybookUXUserReplayUserlytics. You can visit respondent.io. Explore Respondent's company overview page for more information.

What is Respondent's email address format?

Respondent's email format typically follows the pattern of First.Last@respondent.io; this email format is used 95% of the time. Other contacts within LeadIQ's database had email formats such as First.Middle@respondent.ioFirst@respondent.io. Looking for more contact data? Unlock accurate emails and phone numbers from millions of profiles verified in real-time.

How many employees does Respondent have currently?

Respondent has approximately 238 employees as of May 2026. Key team members to contact include Ceo & Founder: J. P.Head Of Marketing: A. W.Head Of Sales: R. G.. For more team information and contact data, explore Respondent's employee directory with LeadIQ.

Respondent Email Format

Q: What is Respondent's email address format?

Respondent's email format typically follows the pattern of ${fn}.${ln}. Other email formats include ${fn}.${mn} and ${fn}.

Research ServicesNew York, United States201-500 Employees

Respondent operates in the Research Services industry as a participant recruiting platform based at 4th Street, Brooklyn, New York, United States, and employs 201-500 people. The platform provides a do-it-yourself participant recruiting solution and an API that enables recruitment across 150 countries from a pool of more than 4 million participants, including consumer audiences, business professionals, and health workers. It is designed to work with researchers' existing tools or workflows and supports embedding on-demand recruitment into other platforms via its API. Participant profiles are verified using methods such as work email verification, feedback ratings from other researchers, and checks for screener response inconsistencies to match researchers' targeting criteria. Recent activity includes the launch of AI Suggestions in December 2025 and a December 2025 partnership with Hubble Technologies, with earlier milestones such as the 2023 Viber launch and a 2023 Dun & Bradstreet partnership.

Most Common Email Formats at Respondent

Frequently Asked Questions

What does Respondent do?

What is Respondent's email address format?

How many employees does Respondent have currently?

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What you can expect from LeadIQ:

Respondent Email Format

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Most Common Email Formats at Respondent

Frequently Asked Questions

What does Respondent do?

What is Respondent's email address format?

How many employees does Respondent have currently?

Everything for prospecting,in one platform.

What you can expect from LeadIQ:

Respondent Email Format

Verify Respondent email addresses

Ready to create more pipeline?

Ready to create more pipeline?

Everything for prospecting,
in one platform.