Outbound Sales Development for AI Revenue Execution Platform

3 Months

Campaign Duration

Outbound

Campaign Type

2

No of SDRs

Key Performance Indicators

$120K

$ Value of Pipeline Generated

Meetings Scheduled

9

No. of Meetings Scheduled

Estimated SQL ROI

4X

Estimated Return On Investment

Revenue Growth Realized

$24K

Estimated Revenue Generated

Seed

Funding Stage

11-50

Headcount

United Kingdom

HQ location

B2B SaaS

Target Industry

Global

Target Location

VP of Sales

Target Persona

Airspeed is an AI-powered copilot and revenue execution platform that automatically analyzes customer conversations and pushes structured insights into CRMs to improve deal visibility. The company partnered with Whistle to transition to a fully managed outbound SDR service and scale its pipeline across U.S. and international markets. Whistle deployed multi-channel campaigns spanning phone, email, and LinkedIn, generating high-touch conversations with C-suite and senior revenue executives.

Challenges Faced

  • Experienced a "data gap" in sales where teams relied on subjective, incomplete manual notes leading to poor CRM data and missed strategic insights.
  • Needed to scale top-of-funnel outbound sales activity and U.S. coverage without integrating external SDRs into internal management.
  • Required setup of infrastructure, separate domains to preserve domain health, and specialized multi-channel outreach to reach high-level executive decision-makers.

Our Solution

  • Managed a multi-channel outbound execution strategy utilizing cold calling, personalized LinkedIn outreach, and optimized email sequences.
  • Scaled weekly phone call volume to consistently surpass 3,000+ dials per week.
  • Created separate email domains to preserve domain health and ran persona-specific campaigns targeting RevOps and VP of Sales, alongside post-event sequences.
  • Executed high-touch LinkedIn campaigns to connect directly with C-suite and senior revenue leaders.

Results Achieved

  • Booked 9 meetings, with 5 sales qualified leads.
  • Achieved call connect-to-conversation conversion rates frequently between 40% and 67.8%, maintaining phone quality scores between 3.4/5 and 4.4/5.
  • Secured 100% ICP-aligned meetings with key decision-makers.
  • Successfully captured target accounts across global strategic markets including the US, UK, France, and broader EU region.

Future Outlook

By leveraging an internal sales conversion benchmark of an 80% meeting-to-SQL rate, a 44% SQL-to-closed-deal rate, and an average deal size of $30,000, the company can continue converting predictable outbound meeting volume into sustained pipeline expansion across U.S. and European markets.

Key Learning

Multi-Channel Synergies Maximize Executive Reach

Combining phone outreach, LinkedIn social selling, and tailored email sequences ensures steady engagement from top-tier C-Suite and VP-level decision-makers.

Persona & Event Sequence Optimization Drives Higher Reply Rates

Customizing outbound sequences for distinct roles like RevOps and leveraging post-event touchpoints generates response rates significantly above industry averages.

High-Volume Cold Calling with Quality Controls Builds Direct Rapport

Scaling outreach to 3,000+ weekly dials while maintaining high conversation quality scores allows SDRs to effectively navigate initial objections and uncover real-time insights.

Proven success with companies
in your industry

Real world results from companies that partnered with Whistle to generate qualified pipeline faster.
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