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Sales Development Agency

Whistle is a global SDR agency empowering fast-growing companies with operations, teams and strategies to generate sales opportunities.

  • Min project size
    $5,000+
  • Hourly rate
    < $25 / hr
  • Employees
    50 - 249
  • Locations
    Tel Aviv-Yafo, Israel
  • Year founded
    Founded 2018

Overview by:

Reviewer avatar
David Zeff

1 Locations

  • Tel Aviv-Yafo , Israel

Select Focus Area
Industries
Advertising & marketing
20%
Business services
20%
Financial services
20%
Manufacturing
20%
Other industries
20%
Clients
Midmarket ($10M - $1B)
50%
Enterprise (>$1B)
25%
Small Business (<$10M)
25%

Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate < $25 /hr
Rating for cost 4.8 /5

What Clients Have Said

Whistle offers good value for cost, with clients praising their pricing alignment with budgets. They typically work with small teams (2-10 employees) and deliver timely, high-quality outcomes, enhancing lead generation and sales efficiency without significant investment in in-house resources.

This summary is based on verified Clutch reviews.

Most Common Project Size

< $10,000 based on 7 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

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Whistle Review Insights

Overall Review Rating

4.9
  • Quality 4.9
  • Schedule 4.9
  • Cost 4.8
  • Willing to Refer 4.9

Top Mentions

Review Highlights

  • Impressive Client Support and Communication

    Clients appreciate Whistle's commitment to providing exceptional support and maintaining open lines of communication. They are noted for being responsive, proactive, and accommodating to client needs.

  • Effective Project Management

    Clients praise Whistle for their timely delivery and ability to meet deadlines. Their project management approach is agile, responsive, and adaptable, ensuring alignment with client goals and maintaining a smooth workflow.

  • Proactive Problem-Solving

    Whistle is recognized for their proactive approach to problem-solving and their ability to go above and beyond to ensure client success. Clients value this dedication and the tangible results it brings.

  • Some Communication and Reporting Improvements Needed

    One client suggested that clearer and more frequent updates on project progress and performance metrics would be beneficial, along with more transparent pricing structures to aid in decision-making.

  • Wide Range of Capabilities

    Whistle offers a diverse set of services, from outbound marketing to CRM implementation and content creation. Clients appreciate their ability to handle various aspects of marketing and sales processes efficiently.

  • Strong Lead Generation Results

    Whistle consistently delivers high-quality leads and books meetings effectively, as noted by clients across various industries. This has led to increased sales and conversion rates for many clients, showcasing their strength in lead generation and outreach strategies.

Whistle Reviews

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Sales Outreach for Real Estate Software Firm

  • Content Marketing Email Marketing SMS Marketing
  • $10,000 to $49,999
  • Oct. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Whistle meets all of our deadlines and are successful at booking qualified meetings."

May 13, 2024
Sales, Real Estate Software Firm
Sindy Tiberi
Verified
  • Other industries
  • Israel
  • 11-50 Employees
  • Online Review
  • Verified

Whistle provides sales outreach services for a real estate software firm. Their tasks include compiling lists of interested prospects and reaching out to them through personalized email and SMS campaigns.

Lead Generation for Consulting Firm

  • Sales Outsourcing
  • B2B Appointment Setting
    +1
  • $10,000 to $49,999
  • Apr. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their services are optimized for maximum effectiveness and efficiency."

May 9, 2024
Business Development Representative, Panna Ventures
Mark Eagar
Verified
  • Other industries
  • Montreal, Quebec
  • 11-50 Employees
  • Online Review
  • Verified

A consulting firm has hired Whistle to develop a robust lead qualification process that would ensure quality leads are passed onto their the sales team. The client's goal is to maximize conversions and ROI.

Lead Generation for Software Development Company

  • Email Marketing Sales Outsourcing
  • B2B Appointment Setting
    +2
  • Confidential
  • Nov. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their strategy is entirely centered around us—our objectives, our target audience, and our industry dynamics."

Oct 4, 2023
Sales Development Representative, Dot Compliance
Bianca Moni
Verified
  • Other industries
  • Phoenix, Arizona
  • 51-200 Employees
  • Online Review
  • Verified

Whistle provides lead generation services for a software development company. The goal is to attract top-tier leads.

Marketing Strategy for Data Management Company

  • Email Marketing Marketing Strategy Sales Outsourcing
  • B2B Appointment Setting
    +2
  • Confidential
  • July 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their consistent communication of updates has ensured alignment with the project's objectives."

Sep 11, 2023
Business Development Specialist, Insait
Dvir Ginzburg
Verified
  • Other industries
  • Tel Aviv, Israel
  • 11-50 Employees
  • Online Review
  • Verified

Whistle has created a marketing strategy for a data management company. The strategy encompasses messaging and channel selection with the goal of increasing the client's leads and engage their target audience.

Digital Marketing for Digital Marketing Agency

  • Email Marketing Sales Outsourcing
  • B2B Appointment Setting
    +2
  • Confidential
  • Oct. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their friendliness and professionalism are commendable."

Aug 28, 2023
Business Development Specialist, Mayple
Robert Froli
Verified
  • Advertising & marketing
  • Kingston, New York
  • 51-200 Employees
  • Online Review
  • Verified

Whistle provides digital marketing support for a digital marketing agency. Their work includes creating outreach templates and developing personalized email campaigns and phone scripts.

Email Marketing for Software Company

  • Email Marketing Sales Outsourcing
  • B2B Appointment Setting
    +2
  • Confidential
  • Nov. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"I'm impressed by their time management and ability to meet deadlines."

Aug 22, 2023
Sales Specialist, Vcita
Tori Fincher
Verified
  • Other industries
  • Bellevue, Washington
  • 201-500 Employees
  • Online Review
  • Verified

Whistle handles a software company's email marketing initiatives. Their work includes optimizing the client's go-to-market strategy, managing campaigns, and handling sales outreach management.

Lead Generation for Cybersecurity Firm

  • Email Marketing Sales Outsourcing
  • B2B Appointment Setting
    +1
  • Confidential
  • June 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They went out of their way to go that bit extra, all to ensure we can have the maximum potential for success."

Aug 16, 2023
Cyber Intelligence Analyst, Entro Security
Katia Teixeira
Verified
  • Other industries
  • Tel Aviv, Israel
  • 11-50 Employees
  • Online Review
  • Verified

Whistle has provided lead generation services for a cybersecurity firm. They have managed the client's inbound lead generation efforts that aligned with the target audience and industry.

Custom Software Development for Marketing Consulting Firm

  • CRM Consulting and SI
  • Other CRM focus
    +1
  • Less than $10,000
  • Feb. - Mar. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The project was delivered extremely quickly."

Aug 14, 2023
Founder, Yahid Consulting
David Yahid
Verified
  • Advertising & marketing
  • Sheridan, Wyoming
  • 1-10 Employees
  • Online Review
  • Verified

Whistle was hired by a marketing consulting firm to implement a new CRM system for an end client. Their work involved implementing HubSpot improvements.

Content Creation for Business Consulting Company

  • Content Marketing
  • Confidential
  • Apr. 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

''They successfully captured the essence of our brand and delivered compelling copy.''

Aug 4, 2023
Content Manager
Lauren Daniels
Verified
  • Information technology
  • London, England
  • 51-200 Employees
  • Online Review
  • Verified

A business consulting company has hired Whistle for content creation. They've assigned a content writer that's able to execute the client's brand vision and requirements and enhance their marketing initiatives.

Lead Generation for Digital Marketing Agency

  • Email Marketing Marketing Strategy Sales Outsourcing
  • B2B Appointment Setting
    +1
  • Confidential
  • Apr. 2023 - Ongoing
4.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
4.5

"Their ability to meet deadlines under pressure while still delivering high-value outcomes is impressive."

Aug 1, 2023
Digital Marketing Specialist, Brand Chemistry
Lana Jooste
  • Advertising & marketing
  • Sydney, Australia
  • 11-50 Employees
  • Online Review

Whistle helps a digital marketing agency with their lead generation efforts, which include creating targeted marketing campaigns, optimizing the client's CRM system, and booking meetings with prospects.

Showing 11-20 of 20 Reviews

Our Story

Whistle connects people, to create opportunities.

Here is what makes us unique:

  1. Experienced, skilled, hungry SDRs - matched to best suit our clients' needs.

  2. SDR placement within 5 days, so clients see ROI in record time.
  3. Best Tech Stack & Outreach processes based on success with 300+ Companies.

Our core values:

We win together.
We work with people we like and trust.
We look for the simplest solution first.
We own our desk.
We have each other’s backs.
We have a growth mindset.
We enjoy what we do.

Meet the Team

Yonah Zeff

Yonah ZeffCOO

COO and Co-Founder of Whistle Sales Development Agency - Helping Sales and Marketing Leaders generate more Meetings and more Revenue with Remote SDR’s

David Zeff

David ZeffCEO

Over 10 years of selling technology to hundreds of SMB and Enterprise companies across multiple sectors, sales. I've been a part of 3 exits - one as a founder and two as a founding sales lead.

Locations (1)

Ovadya mi-Bartenura Street Tel Aviv-YafoIsrael

2 - 5

Contact Whistle

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