Sound off

**FirstQuadrant has been sunset.** We have completed a confidential agreement with a leading AI technology company that recognized long-term strategic value in components of the FirstQuadrant platform and data infrastructure — thank you for being part of our journey. [Read the announcement](https://docs.firstquadrant.ai/press-releases/2025-11-01-firstquadrant-has-been-sunset)

## AI lead sourcing & qualification

FirstQuadrant helps you identify and capture high-quality prospects from multiple channels while leveraging AI to qualify and enrich lead data, ensuring you reach out to the right prospects with precision.

- In-app lead sourcing
- API and webhooks
- Website visitor identification
- Sales app integrations

### Perplexity search

FirstQuadrant leverages Perplexity's cutting-edge AI to qualify and enrich data, ensuring highly accurate and up-to-date insights.

### Existing metadata enrichment

FirstQuadrant leverages Perplexity's cutting-edge AI to qualify and enrich data, ensuring highly accurate and up-to-date insights.

### Extensive data set

FirstQuadrant's prospect database includes 100M professionals globally, providing a vast and reliable source for lead generation.

Campaign editorPersonalized email

Subject

{company name} \- {short use-case}

Hi {first name or nickname if available},

{personalized intro, if possible mention Y Combinator as our investor}

Centercode is a beta testing tool we've developed.{specific use-case how Centercode may be useful to recipient}. We can help with that!

Would love to show you a demo. Let me know when you have some time to chat.

Best,

{my first name}

### Custom domains

FirstQuadrant allows you to connect customized domains for your outbound activities to protect the reputation of your primary domain.

### All ESPs supported

FirstQuadrant lets you connect mailboxes from Google, Microsoft, Zoho, or any other email service provider to ensure seamless email delivery.

### Smart scheduling

FirstQuadrant only sends emails in each recipient's time zone, ensuring your messages reach the inbox at the most optimal time.

### Email verification

FirstQuadrant utilizes email verification to authenticate addresses, ensuring your outbound messages reach genuine and active email boxes.

### Mailbox rotation

FirstQuadrant uses maintenance and active mailboxes and allows you to rotate them as soon as any of them get a low deliverability score.

### Unlimited mailboxes

Connect unlimited mailboxes per user, allowing seamless management of multiple email accounts within a single platform.

## Up and to the right

[Read announcement](https://docs.firstquadrant.ai/press-releases/2025-11-01-firstquadrant-has-been-sunset)

## Enable sound?

We recommend enabling audio for a far better experience.