Cold Emails That Actually Get Replies

We handle the targeting, writing, sending and replies so that your team can focus on converting meetings to deals.

Accelerate My Pipeline
Over 300 Companies Trust Whistle
  • Logo 1
  • Logo 2
  • Logo 3
  • Logo 4
  • Logo 5
  • Logo 6
  • Logo 7
  • Logo 8
  • Logo 9
  • Logo 10
  • Logo 11
  • Logo 12
  • Logo 13
  • Logo 14
  • Logo 15
  • Logo 16
  • Logo 17

How It Works

SDR FunctionAccelerate your pipeline generationGrow My Pipeline

Let’s Write Emails that Work

Every word, every email, and every follow-up is designed to get you in front of the right buyer and increase your pipeline.
Clean, verified contact lists with live intent signals
AI-Custom messaging that aligns with what your buyer actually cares about
Technical setup that protects deliverability and domain health
A/B tested sequences written to drive replies and meetings
Real-time tracking and reporting so you know what’s working
Book a Meeting

Behind Every Reply is a Proven Process

Every part of the process is built to deliver qualified meetings, not land in spam.
Timeline Rail — Cleaned & Commented
Step 1

Find the Right People

We start by identifying exactly who you want to reach - based on role, company size, industry, and signals like funding, hiring, or tech stack.

Step 2

Set Up Tools That Keep You Out of Spam

We configure domains, warm inboxes, and prepare the tech to protect your domain and ensure deliverability from day one,

Step 3

Shape the Message Buyers Want to Hear

Our team writes and launches AI-personalized sequences designed to get real replies and generate meetings.

Step 4

Track Replies and Book the Right Meetings

We monitor performance, optimize the campaign, manage replies and book meetings while you focus on closing hot leads.

Proven success with companies
in your industry

Real world results from companies that partnered with Whistle to generate qualified pipeline faster.
View More
We view as an inherent part of the Setpoint team, together we join forces to unfold target markets and niche audiences. the team has demonstrated the agility to pivot as needed time and time again , with creativity and much enthusiasm. we recommend working with them.
Iftah Cohen
Co-Founder of Setpoint
We view as an inherent part of the Setpoint team, together we join forces to unfold target markets and niche audiences. the team has demonstrated the agility to pivot as needed time and time again , with creativity and much enthusiasm. we recommend working with them.
Iftah Cohen
Co-Founder of Setpoint
We view as an inherent part of the Setpoint team, together we join forces to unfold target markets and niche audiences. the team has demonstrated the agility to pivot as needed time and time again , with creativity and much enthusiasm. we recommend working with them.
Iftah Cohen
Co-Founder of Setpoint
We view as an inherent part of the Setpoint team, together we join forces to unfold target markets and niche audiences. the team has demonstrated the agility to pivot as needed time and time again , with creativity and much enthusiasm. we recommend working with them.
Iftah Cohen
Co-Founder of Setpoint
We view as an inherent part of the Setpoint team, together we join forces to unfold target markets and niche audiences. the team has demonstrated the agility to pivot as needed time and time again , with creativity and much enthusiasm. we recommend working with them.
Iftah Cohen
Co-Founder of Setpoint
We view as an inherent part of the Setpoint team, together we join forces to unfold target markets and niche audiences. the team has demonstrated the agility to pivot as needed time and time again , with creativity and much enthusiasm. we recommend working with them.
Iftah Cohen
Co-Founder of Setpoint

Trusted by Growing
Revenue Teams

They Whistled. We Gave Them Pipeline. From early-stage startups to enterprises, our clients share how Whistle changed the game.
Profile picture
SDR FunctionSDR FunctionGrow My Pipeline

Not Sure Which Leads to Prioritize?

Not all leads are created equal. Use the Whistle Lead Projection Calculator to uncover benchmark lead conversion rates from over 300 companies, so you can focus your SDR team where it matters most.
Grow My Pipeline

Ready to Get More Positive Replies?

Let’s walk you through how how we schedule  14,000 meetings a year

Our Other Services

Whether you're refining your CRM, filling data gaps, or building a pipeline from scratch, our services are designed to meet you at your stage of growth and help you move forward faster and more efficiently.

Cold Calling

Convert leads through conversations. Our SDRs harness the phone to build trust and book qualified meetings for your sales team.
Find Out More

LinkedIn Outreach

Build more connections with your ideal buyers. We run personalized LinkedIn outreach that earns replies and strengthens your network.
Find Out More

Pipeline Generation

Never worry about top-of-funnel again. We build a steady stream of qualified leads so your team can focus on closing, not chasing.
Find Out More

RevOps for HubSpot

Turn your HubSpot CRM into a revenue machine. We maintain your CRM, automate key processes, and help Sales and Marketing move faster.
Find Out More

Data on Demand

Reach decision-makers, more easily. Our team delivers accurate, verified leads so your outbound never stalls because of bad data.
Find Out More

Frequently Asked Questions

How fast can we get started?
Can we choose how many outsourced SDRs we need?
Do you only do outbound?
Who handles the messaging and strategy?
Do you integrate with our CRM?
Are you responsible for closing deals?
What makes Whistle different from other SDR agencies?
What kind of results should we expect?
What does pricing look like?

Can I trial Webflow before paying?

Sure! You can test out Webflow on our free plan where you can experiment with 2 projects. Your unhosted projects will have a two-page limit, but you can purchase a site plan on a per-project basis to unlock up to 100 static pages and additional CMS pages.

What is a project?

A project is a website that you build in Webflow. You can publish projects to a webflow.io staging subdomain for free, export the code on a paid plan, or add a site plan to connect your custom domain and unlock hosting features.

What can I white label?

Pro accounts can add their own logo to Client Billing forms and the Editor. Pro accounts can also remove references to Webflow in the source code and form submission emails, and hide the Webflow badge from their staging sites.

How much traffic can the hosting handle?

keyboard_arrow_down

Webflow hosting scales automatically to handle millions of concurrent visits. All site plans serve sites through our Amazon's Cloudfront CDN and accelerated using Fastly, loading sites in milliseconds.

What kind of support does Webflow provide?

keyboard_arrow_down

We offer fast email support to paid accounts and prioritized help for team accounts. Community support (forum.webflow.com) is available to free accounts.

How long does it take to learn Webflow?

keyboard_arrow_down

If you're new to building websites, our video tutorials will get up and running quickly. If you already know concepts behind CSS and the box model, you will feel at home in Webflow.