Whistle Ltd

• Pricing model: Custom-quoted outsourced SDR / appointment-setting engagements. The evidence points to a monthly service model for fully managed outbound SDR programs, plus a flexible staffing-style "Hire SDRs" offer; Whistle itself says pricing varies by scope depending on whether you hire SDRs, run full-service outbound, or need RevOps support.
• Starting price: $1,000 project minimum
• Typical range: $5,000-$10,000+ / month
• Billing: Primarily custom monthly engagements for outsourced SDR / appointment-setting services; also offers a flexible staffing-style Hire SDRs model. DesignRush separately lists an average hourly rate of $25/hr, but that appears to be directory metadata rather than a published agency rate card.
• Contract terms: Whistle's site does not publish a contract minimum. A third-party profile says the Hire SDRs program uses flexible 30-day terms.
• Free trial: Whistle offers a free strategy call and free tools (including a Lead Projection Calculator), but no free trial or pilot pricing was found.

Whistle does not publish fixed package prices on its own website; its homepage FAQ says pricing varies by scope and that buyers receive a quote on the intro call. The clearest concrete figures found are third-party directory-style benchmarks: DesignRush lists a $1,000-$10,000 minimal budget and $25/hr average hourly rate, while SalesHive says external benchmarks put typical engagements around $5,000-$10,000+ per month. Treat those third-party numbers as directory/market estimates, not as an official Whistle price list.

Whistle Ltd appears to run a fairly standard outsourced SDR engagement: they start by diagnosing the client’s ICP, lead sources, deal economics, and current setup, then build the outreach strategy, stand up systems and data, launch SDR-led multichannel outreach, and review performance with frequent reporting and strategy check-ins. Review evidence and the company’s own process pages consistently point to a hands-on, communicative delivery model centered on qualified meeting booking rather than closing deals.

1. 1

   Define goals and ideal customer profile

   The engagement starts with a discovery phase where Whistle studies the client’s current setup, lead sources, ICP, average deal size, and conversion rates so it can understand revenue goals and where outbound should focus.

2. 2

   Build the outreach strategy

   Using that discovery input, Whistle creates a tailored strategy by prioritizing lead sources, segmenting the ICP, choosing channels, and shaping the overall go-to-market approach. Their own FAQs also say they handle the messaging and strategy, with the client reviewing and approving it.

3. 3

   Set up onboarding, systems, and data

   During onboarding, Whistle sets up outreach systems, plugs into the client’s CRM, builds validated target lists, prepares messaging and multichannel sequences, and assigns the SDR team. Their materials describe this as a fast but thorough setup designed to get the team ready to launch.

4. 4

   Launch SDR outreach and qualification

   Once live, Whistle’s SDRs run multichannel prospecting across phone, email, and LinkedIn, using the prepared lists and sequences to start conversations, qualify leads, and book meetings. Multiple pages emphasize that Whistle creates qualified sales opportunities, while the client’s sales team owns closing.

5. 5

   Communicate closely and handle requests

   Client-review summaries consistently describe strong communication, punctual delivery, follow-up, and responsiveness. Whistle’s own customer success and team leader descriptions align with that experience, indicating active management, coaching, and quick handling of training or campaign requests during execution.

6. 6

   Report, review, and optimize

   After launch, Whistle provides live reporting plus recurring daily, weekly, monthly, and quarterly reporting views, including channel and segmentation breakdowns. Weekly reviews with a customer success manager and team-lead oversight are used to assess performance, act on insights, and adjust what the team should keep doing or stop doing.