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Sales Development Agency designed to boost revenue

Our world-class SDRs enable you to scale faster, by setting up more qualified meetings for your sales teams.

We’ve run sales campaigns for over 200 global startups and have generated $100M+ in opportunities for our clients to date. 

Ready for rapid growth? Let’s connect.

Fill your calendar with qualified meetings and scale faster.

Our world-class SDRs have generated $100M+ in opportunities for our clients to date. 

Ready for rapid growth? Let’s connect.

Book A Meeting

Trusted By

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Wix logo_4
Rakuten-01
Ministry-01
Zendesk-01
Intel-01
VmWare-01 (1)
Brand Chemistry
Claroty-01
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Albi 2-01
ASK
Sensi-01
Sware-01
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Urecsys-01
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Insait-01
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Dot Compliance-01
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Thetaray-01
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LivedX-01
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32
Mobile Logo
Leap Xpert-01
3
17
28
Rezdy-01
Currency Transfer-01
Expansive-01
Fueled-01
1
Wix logo_4
Claroty-01
Rakuten-01
Ministry-01
Zendesk-01
Intel-01
VmWare-01 (1)
Brand Chemistry
2
Albi 2-01
ASK
5
Sensi-01
6
Sware-01
7
Urecsys-01
8
9
10
11
Insait-01
12
13
Dot Compliance-01
14
15
Thetaray-01
16
17
1-01
19
20
21
22
23
29
LivedX-01
26
25
24
30
31
32
Mobile Logo
Leap Xpert-01
3
17
28
Rezdy-01
Currency Transfer-01
Expansive-01
Fueled-01

Some of our happy clients

"We started working with Whistle in February 2022. It was very evident that Whistle has plenty of experience at onboarding new customers. The process was professional, efficient and comprehensive. This was one of the main reasons we decided to partner with Whistle – we wanted to avoid a long learning curve and onboarding process, and Whistle definitely delivered."
Tomer Prosor
Tomer ProsorDirector of Business Development at Playermaker
“They took the time to really get to know our product, target markets and internal procedures, and were able to work around our current flow seamlessly. The team is enthusiastic, personable and have been incredibly supportive with great advice and regular check-ins for strategy and practice, which has been incredibly helpful.”
Ellie Angell
Ellie AngellHead of Sales at MyInterview
"They helped set up a whole new SDR function for us which was massive. Their team members were bright, intelligent, and hard working as well. Leads responded to them nicely. They helped schedule 800+ sessions."
April Ayers
April AyersGlobal Director of Customer Success & Sales at vcita
“The girls on our Whistle team crush their goals every day, every month. They have amazing attitudes and willingness to be part of our team. Love Whistle!!!! "
David Pennington
David PenningtonSDR Team Lead at WiseStamp
"We selected Whistle because of their time-zone availability and proven success in past work. They helped us to increase demos booked and decrease no-show rates. Initially, we were looking to run through a backlog of thousands of warm leads that we didn't have the manpower to get to. Now, Whistle helps us stay on top of the large number of new inbound leads we have starting trials."
Connor Conzelman
Connor ConzelmanDirector of Customer Success at ClearCalcs
"It's been really great to work with the Whistle team. With no SDR in place we needed a quick way to start cold-calling prospects and Whistle were able to step in and deliver in a super quick way. I'd highly recommend Whistle for all your outsourced SDR needs."
Yair Lehrer
Yair LehrerVP Marketing at myInterview
"We view Whistle 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."
Iftach Cohen
Iftach CohenCo-Founder of Setpoint
“Whistle has delivered a high volume of leads, as well as some outstanding creative content for sequences and professional service that we can rely on. We trust the team to do a good job and haven’t been disappointed. I highly recommend them.”
Sam Clarke
Sam ClarkeCo-Founder of Clipboard
I believe this partnership was a great learning experience for me and LivedX. It gave me an opportunity to learn more about the sales process and everything associated with it.
Geeta Verma
Geeta VermaFounder of LivedX
Whistle has been great. Mel, my account manager, has been really lovely - I've enjoyed working with her. I've also started doing some work with Kirsten on the CRM stuff, and he's been fantastic as well. So yeah, shout out to everybody at Whistle who has serviced us, we love working with you guys.
Jaime Schell
Jaime Schell Chief Revenue Officer at MoleMap
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Our Sales Development Services

The world of B2B sales development demands more than just a cookie-cutter approach.

That’s why we offer tailored solutions, full transparency and a performance-driven strategy that will set you apart. Our expert sales development services are structured into two main offerings: The SDR Agency and Appointment Setting.

Our fully-managed Sales Development Agency service is ready to launch within 10 days. We seamlessly integrate within your systems to ensure that your campaign runs smoothly and that you have full visibility.

You’ll have access to the following teams and resources:

You decide on the number of SDRs in your team and have the ability to scale up within 10 days.

Your dedicated Account Manager keeps your campaign and SDRs on track.

Our content team creates the messaging for all outreach channels and handles all sequence set ups.

Our Ops team optimize your CRM before launch and offer ongoing support for your SDRs. ​

Each month you'll receive 400 contact enrichment credits per full time SDR.​

Find Out More
Book A Meeting

We offer highly trained and experienced Sales Experts who can be hired in-house to boost revenue growth and fuel headcount - all without the hassle of the recruitment and training processes.

We match you with top talent from our globally vetted and trained talent pool. All our experts have 5+ years of sales experience and are hand-picked based on your needs, to ensure that you get the perfect fit. They are Hubspot certified and have all completed our Academy, which runs best practice certification on phone, email, LinkedIn and CRM management.

We offer global coverage, which means you can hire SDRs to work in any timezone. You keep total control with our Scale-Up or Switch-Out System. Within 10 business days, we will find your perfect fit and if you're not 110% happy - we'll find a better fit within 5 days.​

Our world-class SDRs

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Find Out More
Get Started

Our Sales Development Services

The competitive world of B2B sales demands more than just a cookie-cutter approach.

That’s why we offer tailored solutions, full transparency and a performance-driven strategy that will set you apart. Our expert sales development services are structured into two main offerings: The SDR Agency and Appointment Setting.

Our fully-managed Sales Development Agency service is ready to launch within 10 days. We seamlessly integrate within your systems to ensure that your campaign runs smoothly and that you have full visibility.

You’ll have access to the following teams and resources:

You decide on the number of SDRs in your team and have the ability to scale up within 10 days.

Your dedicated Account Manager and Team Leader keep your campaign and SDRs on track.

Our content team creates the messaging for all outreach channels and handles all sequence set ups.