
Finding customers is the hardest problem in business, and we've solved it thousands of times.




Our SDR Difference
Our SDRs have on average 5 years of sales experience and are available in every time zone and in major languages including English, German, French, Spanish, Portuguese, Mandarin and more.
We work remotely, and our SDRs represent themselves as if they have been employed by your company. We work alongside your teams, within your systems, and according to your programs. Your Customer Success Manager and Team Leader work on the backend to ensure a smooth working environment.
Whistle SDR qualifications
Give Us 3 Weeks
If you're unsure whether cold calling will work for your product/service or ICP, we run a focused 3-week trial to validate fit before any long-term commitment. At the end, you'll receive a clear report on performance and learnings, what worked and what didn't, so you can decide whether to move forward with a fully managed package.
Our complete solution is a dedicated cold calling service, meaning no emails, no DMs, just conversations, built to drive qualified opportunities into your sales pipeline. We handle the entire front line, so you can focus purely on closing.
A focused cold-calling initiative to validate outbound viability for your ICP and facilitate a confident go / no-go decision.
POC Disclosure
The cold-calling POC is a focused trial designed to validate channel fit and performance before any long-term commitment. At the end, you will receive a clear report covering results, learnings, what worked and what did not, to help you decide whether to continue.
What You Get
We provide carefully vetted SDRs who are ready to generate meetings and pipeline from day one. No wasted weeks interviewing unqualified candidates.
We rigorously vet candidates and hire just 1 in every 500. Our average cold caller has 5 years of sales or cold calling experience.
Get your expert appointment-setting team onboarded and dialing within 5 days.
On average, every cold caller can make up to 200 to 300 calls a day, and we can reach every time-zone and every lead.
Each caller is trained and experienced in handling objections and leading discovery conversations that matter.
Whether you're running a short-term campaign or scaling long-term, our flexible models adapt to your needs.
Track call performance with insights broken down by geography, titles, industry and company size and lists.
Social Proof
Real results from real companies, similar to yours, that trusted Whistle to build their pipeline.
Key Performance Indicators
A focused 3-week cold-calling initiative designed to validate outbound viability for your ICP and facilitate a confident go / no-go decision.
Each SDR manages 500 targeted leads with up to 250 to 300 calls per day, ensuring enough volume to generate statistically meaningful signals.
Gain clear visibility into which specific personas and messaging resonate most effectively before scaling your investment.
Post-POC programs typically see 85% of held meetings convert to SQLs, with clients closing at a 30% rate.
Projected POC Funnel
Based on 85% SQL conversion and 30% close rate. Actual results depend on ICP fit, list quality and product-market alignment.
Based on $1,000 avg. deal size & 4 closed won from the POC
Partnership
We will need a POC on your side for SDR and Operational support.
You must have a website, at least 5 strong case studies and a calendar link for the sales team.
You'll need to add us to your preferred communication channel and we'll use Asana for project management.
The onboarding process involves completing a few forms, meeting our team, setting up your LinkedIn Sales Navigator account & integrating your LinkedIn profile with our outreach tools.
Treat us as if you've hired us. The closer we work together, the better!
Your Team
Whistle takes ownership of your pipeline generation from day one. We plan, launch, and manage everything you need to fill your calendar with qualified opportunities.
who will help refine your Ideal Customer Profile (ICP), craft an effective cold call strategy, and provide insight into campaign performance through tailored reports.
who will oversee SDR performance, review call recordings for quality and effectiveness, provide coaching insights to your team, and share weekly performance reports.
of expert researchers who source and validate phone numbers from leading contact databases to build high-quality, accurate call lists tailored to your target audience.
that connects directly with your ideal customers through cold calls, engages prospects in real conversations, provides ongoing feedback, and books qualified meetings on your behalf.
Visibility
Full campaign analytics and optimization inside WhistleOS — track every call, meeting and outcome in real time.
Getting Started
From kickoff to dialing in 5 days.
Investment
POC Investment
5-day set up
A focused, fixed-price proof of concept to validate cold calling for your ICP.
Performance Fee
per held meeting with your ICP
You only pay for meetings that actually happen with your ideal customer profile.
What's Included
Beyond The POC
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.
Ideal for companies who need end-to-end support running sales campaigns. We provide management, operational support, data and skilled SDRs.
Ideal for companies with all the processes, management and tech in place, but need skilled SDRs to execute their campaigns & book qualified meetings.
Convert leads through conversations. Our SDRs harness the phone to build trust and book qualified meetings for your sales team.
Turn your LinkedIn profile into a social selling machine with our LinkedIn lead generation service, where we'll help you book qualified meetings and expand your network.
Book qualified meetings through our easy to manage and affordable cold email service. We follow latest best practices and use a leading tech stack to ensure maximum results.
Chat to your Whistle sales rep about getting started.
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