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Outsourced SDRB2B tech

Outsourced SDRs
who pick up the phone.

Real people call your buyers, qualify every reply and book meetings in your calendar.

Book a call

On a call with the CMO at a consumer brand.

ArturoGrowth Operations Manager

On a call

Your calendar

  1. Mon16:00
  2. Tue9:30
  3. Wed11:30
  4. Thu
  5. Fri
An example day on a client account. The faces are the Growth Cab team.
400+B2B clients served since 2022
10,000+qualified opportunities opened
23%average close rate
$500M+pipeline generated for clients

Outbound programs our SDRs ran, every one a published case study

  • Elevate
  • Digital360
  • Cloudsome
  • Jobtome
  • Tconsulta
  • Airbag Studio
  • Business Log
  • TendersTool
  • Blazar Group
  • Syneto
  • Innovhub
/ YOUR SDR TEAM

Meet the people who call your buyers.

Named people work your accounts. You meet them on the review call and see their work in a live dashboard, broken down by each person.

  • 40qualified opportunities for Elevate, all booked by one dedicated SDR, worth $12.6M+ in pipeline
“On targeting and on the quality of your calls, we are absolutely aligned.”
Ilaria R.Ilaria R.Head of Go-To-Market, Vedrai
Leadership
  • Federico DonatoneFederico DonatoneFounder & CEO
  • Lorenzo AsnaghiLorenzo AsnaghiCo-Founder & COO
  • GuglielmoGuglielmoExecutive Director
Lists, data and tools
  • ArturoArturoGrowth Operations Manager
Calls, LinkedIn and email
  • LazzaLazzaBusiness Development Manager
  • CostaCostaFull Cycle GTM
  • SamSamFull Cycle GTM
Your buyers
  • CEOs and founders
  • CTOs and CIOs
  • Heads of HR
  • CMOs
/ THE DIFFERENCE

Automated outbound stops at the reply. Our SDRs take the call.

Automated engines send at volume and pass every reply to your team. Our SDRs answer each reply, call the buyer, qualify the deal and book the meeting, with a brief for your closer.

LazzaLazzaYour SDR
00:00 / 06:12
VPVP of OperationsLogistics group, 1,200 people
  1. Lazza

    You opened two warehouses this year. How are you tracking shipments across them?

  2. Buyer

    Spreadsheets, mostly. It is getting messy.

  3. Lazza

    Who else would weigh in on this, and is it a priority this quarter?

  4. Buyer

    Me and our CFO. We want it fixed before Q1.

  5. Lazza

    Would Thursday at 10:30 work, with our account executive?

  6. Buyer

    Thursday works. Send the invite.

THU12
MEETING BOOKED10:30 with your account executive
  • Decision maker
  • Need
  • Timing
Brief sent
Example call, written for this page. Every real call ends the same way: qualified, booked and briefed.
Automated outbound
  1. Sequence sent
  2. Reply
  3. Forwarded to your inbox
Your team calls back
Growth Cab SDRs
  1. Research
  2. Call, LinkedIn, email
  3. Reply
  4. Call back
  5. Qualify
  6. Booked with a brief
“Your conversion rates on cold calls beat our own email and LinkedIn nurturing.”
Maria Caterina B.Maria Caterina B.Marketing, Vedrai
/ THE DATA

1,380 meetings booked by cold calling.

Every meeting 11 Growth Cab business developers booked by phone for 25 clients, from September 2024 to September 2026, followed to its outcome.

  • 69.6%Took place
  • 14.6%No-show
  • 11.0%Rescheduled
  • 4.7%Cancelled
One dot per meeting booked by cold calling, 1,380 in all.
92.9%

of the meetings that took place were with prospects who matched the client's target. Our SDRs book the buyers you asked for.

Book it soon. Share of meetings that took place, by days between the call and the meeting.
  1. 85.4%0 to 2 days
  2. 77.6%3 to 7 days
  3. 70.1%8 to 14 days
  4. 60.3%15 to 30 days
  5. 58.5%31+ days

Source: our B2B meeting show rate study, with the method and the full data.

/ RESULTS

Outsourced SDR results, client by client.

Qualified opportunities our SDRs opened for each client, every number from a published case study. Pick a client to see the line that opened the conversations.

Log management and IT compliance softwareUnder two years

Business Log

213Qualified opportunities
35With CIOs, CTOs, CISOs and heads of IT
100+Companies met
“The calling and the tailored work on each account is what I am looking for.”
Luca A.Luca A.CEO, Business Log
Read the Business Log case study
Digital transformationOne yearLinkedIn and email

Digital360

$4.6M+Forecast pipeline
98Qualified opportunities opened
27%Average close rate
THE LINE THAT OPENED THE CONVERSATIONS

“AI search is replacing traditional SEO as the main visibility layer.”

“If all the calls you book for us were like this one, it would be perfect. That is the prototype of the interest we are looking for.”
Matteo G.Matteo G.Head of Account Intelligence, Digital360
Read the Digital360 case study
Medical device softwareOver a yearEmail and phone

Airbag Studio

70Qualified opportunities with medtech and healthcare leaders
32With CEOs, founders and C-level executives
66Companies met
THE LINE THAT OPENED THE CONVERSATIONS

“We build software only for the medical sector, integrated with the devices and systems you already use.”

“The quality of the opportunities exceeded my expectations.”
Omar C.Omar C.CEO, Airbag Studio
Read the Airbag Studio case study
Cloud infrastructure softwareOver a yearPhone and email

Cloudsome

62Qualified opportunities with technology leaders
41With CTOs and CIOs
55+Companies met
THE LINE THAT OPENED THE CONVERSATIONS

“Your IT team is spread across too many clouds, consoles and scripts. What if you could run it all from one place?”

“We are satisfied with the work, both in commitment and in the quality of the target you reached.”
Stefano L.Stefano L.CEO, Cloudsome
Read the Cloudsome case study
Recruitment techNine monthsLinkedIn and email

Jobtome

$1.3M+Pipeline generated
62Qualified opportunities opened
33%Average close rate
THE LINE THAT OPENED THE CONVERSATIONS

“Better candidates at lower cost, without adding complexity.”

Read the Jobtome case study
Employee mental healthTen monthsEmail and phone

Tconsulta

53Qualified opportunities with HR leaders
47With HR directors, CHROs and heads of HR
12Opportunities in a single month
THE LINE THAT OPENED THE CONVERSATIONS

“Many HR directors tell us workplace wellbeing is hard to make concrete. Is it something you are working on?”

Read the Tconsulta case study
Technology and designSix monthsLinkedIn and email

Elevate

$12.6M+Pipeline generated
40Qualified opportunities opened
23%Average close rate

One dedicated SDR booked all 40 opportunities.

“Working with Growth Cab is easy: they deliver meetings with on-target prospects within the agreed timelines.”
Andrea M.Andrea M.CMO, Elevate
Read the Elevate case study
IT services and AI softwareFour monthsPhone and email

Blazar Group

33Qualified opportunities with IT and engineering leaders
9With CTOs and CIOs
15Opportunities in a single month
THE LINE THAT OPENED THE CONVERSATIONS

“Your code never leaves your infrastructure.”

Read the Blazar Group case study
IT infrastructure and cybersecurityThree monthsPhone and email

Syneto

32Qualified opportunities with IT and security leaders
31Companies met
18Opportunities in a single month
THE LINE THAT OPENED THE CONVERSATIONS

“Being hit by ransomware is a question of when, not if. How many minutes would your company need to restart?”

Read the Syneto case study
Public sector intelligenceThe first 90 daysLinkedIn and email

TendersTool

$700K+Pipeline generated
25Qualified opportunities opened
18%Average close rate
THE LINE THAT OPENED THE CONVERSATIONS

“Stop reacting to tenders. Start anticipating demand. TendersTool lets you act before competitors and enter deals earlier.”

“Dynatrace done too. Great contacts.”
Gaia M.Gaia M.Head of Business Development, TendersTool
Read the TendersTool case study
Industrial testing and researchFour monthsPhone and email

Innovhub

23Qualified opportunities with food and packaging leaders
19With quality, food safety, R&D and packaging leaders
12Opportunities in a single month
THE LINE THAT OPENED THE CONVERSATIONS

“The new EU packaging regulation changes a lot. Do you know which obligations apply to each of your products, and when?”

“A collaboration built on presence, reliability and care.”
Gianmaria G.Gianmaria G.Head of Innovation, Innovhub
Read the Innovhub case study

Every client story, with the full numbers, is on the case studies page.

The stack behind every call and message: our partners, and the tools we run every day

/ PROCESS

How our SDR outsourcing works, from kickoff to day 90.

Setup first, with your approval on every account and every script. Then the calls start, and pipeline follows.

  1. Day 1Fit call

    We check whether outbound can pay back at your deal size. If it cannot, we say so.

  2. First weeksWishlist and buyer map

    Target companies first, then the people who sign. You approve the list.

  3. First weeksScripts and messages

    Each buyer type gets its own opening. You sign off before the first call.

  4. ThenCalls, LinkedIn and email

    Outreach starts, and a person answers every reply.

  5. Day 32 to 47Pipeline starts filling

    Qualified meetings land in your calendar, each with a brief.

  6. Day 90A repeatable pattern

    You know which segment and which message produce meetings.

Elevate: 21 of its 40 opportunities came in the first two months.

Outsourced SDR vs in-house SDR

Both can work. They differ on how soon pipeline starts, who carries the management load and what you keep at the end. You can also run both: outsourced SDRs on a new market, in-house reps on the accounts they know.

“You are much more skilled than us at this: you do it all day, every day.”
Marina S.Marina S.Marketing & Communication Manager, Quanture
QuestionIn-house SDROutsourced SDR, Growth Cab

In-house SDRRecruiting, onboarding and ramp all come before the first qualified meeting.

Outsourced SDR, Growth CabPipeline typically starts filling between day 32 and day 47 of the program.

In-house SDRYour team, with a sales manager who has hours to coach.

Outsourced SDR, Growth CabGrowth Cab, with your sign-off on accounts and messages.

In-house SDRYou choose, buy and configure each one.

Outsourced SDR, Growth CabWe run account selection, enrichment and the sending infrastructure, kept apart from your primary domain.

In-house SDREverything, as long as the rep wrote it down.

Outsourced SDR, Growth CabEverything we build: lists, enrichment logic, scripts, sequences and sending infrastructure.

In-house SDRYour outbound motion is proven and you want a long-term owner inside the company.

Outsourced SDR, Growth CabYou want pipeline from named accounts soon, and nobody has yet proven which accounts and messages work.

/ FAQ

Outsourced SDR FAQ.

Ten questions B2B teams ask before they hand sales development to a provider. The first call covers the rest.

Book a call

What is an outsourced SDR?

An outsourced SDR is a sales development rep on a provider's payroll who works your target accounts: account research, first messages, follow-ups and qualification. Each qualified buyer then goes to your account executives. At Growth Cab, trained business developers do this by phone, on LinkedIn and by email, for B2B tech companies whose deals run $50K or more.

What is SDR as a service?

SDR as a service means a provider runs the whole sales development function for you: the reps, their management, the data and the outreach setup. You bring the offer, the target market and the people who close.

Is an outsourced SDR better than an in-house SDR?

It depends on what you already have. If nobody has proven which accounts and messages work, an outsourced team finds out faster, because it arrives with the method, the data and the sending setup. Once outbound works and you want a long-term owner, an in-house SDR makes sense, and Growth Cab hands over the lists, sequences and sending infrastructure so that switch is possible.

Do your outsourced SDRs make phone calls?

Yes. Our business developers call, write on LinkedIn and send email, then answer every reply, qualify the buyer and book the meeting with a brief. In our study of 1,380 meetings booked by cold calling for 25 clients, 92.9% of the meetings that took place matched the client's target.

How long does it take outsourced SDRs to ramp up?

Expect a setup phase first: the target accounts, the decision makers and the messages all need your approval. On Growth Cab programs, pipeline typically starts filling between day 32 and day 47, and by day 90 the first meetings should have turned into a repeatable pattern.

How do you measure an outsourced SDR program?

Track each stage on its own: contacted, replied, meeting booked, meeting held, opportunity accepted and pipeline. Judge month one on setup and replies, and month three on held meetings and accepted opportunities. In our study of 1,380 B2B meetings booked by cold calling, 69.6% took place, so booked meetings alone overstate results.

What drives the cost of SDR outsourcing?

The number of SDRs on your account, whether they are dedicated or shared, the markets and channels covered, and whether data and sending infrastructure are included. Compare providers on the cost of each opportunity your sales team accepts, plus the hours your own team still spends.

Who are outsourced SDR services for?

B2B tech companies past product-market fit, selling contracts of $50K or more to buyers they can name, with someone ready to take the meetings within days. If deals average under $50K, or the offer has not sold yet, outreach only spreads the problem faster, and we say so on the first call.

Can outsourced SDRs work alongside our in-house sales team?

Yes. A common split gives the outsourced team a new market, segment or product while your in-house reps keep the accounts they know. Agree who owns each account before launch, so no buyer hears from your company twice.

What should I ask outsourced SDR companies before signing?

Ask for results by client with names and numbers, the written definition of a qualified meeting, and who writes and answers the messages. Then ask who owns the sending domains, lists and sequences, and how the handover works. Our outsourced lead generation scorecard turns these questions into a worksheet.

/ BUYER'S GUIDE

The outsourced SDR buyer's guide.

What to check before you hand sales development to any provider, us included. Seven short parts.

What Is an Outsourced SDR?

An outsourced SDR is a sales rep employed by a provider to prospect your target accounts: research, first contact, follow-up and qualification. Qualified buyers go to your account executives. When you buy the whole function this way, with people, data and outreach setup included, the market calls it SDR as a service or SDR outsourcing.

SDR outsourcing
Hand the top of the funnel to a providerAccount research, first touches, follow-ups and qualification move to an outside team. Your account executives step in once a buyer is qualified.
SDR as a service
Buy the function, with everything around itReps, their manager, data and sending setup all come from one provider. Your side keeps the offer and the closers.
SDR or BDR
Two titles, one roleMost proposals use SDR (sales development representative) and BDR (business development representative) for the same job. Where a company splits them, inbound follow-up goes to the SDR and outbound prospecting to the BDR.

Outsourced sales development is the umbrella term for buying either role. At Growth Cab, trained business developers embedded in your team do the work.

What Drives the Cost of SDR Outsourcing

Compare the full cost of each option, then the cost of each opportunity your sales team accepts.

An in-house SDRWhat you pay for
  • Salary, commission and benefits
  • Recruiting time and fees
  • Data, sales tools and sending infrastructure
  • Manager hours spent coaching
  • The months before a new hire produces pipeline

The salary alone understates the real number.

SDR outsourcingWhat changes the cost
  • How many SDRs work your account, dedicated or shared
  • The markets, languages and channels covered
  • Whether data, enrichment and sending infrastructure are included
  • How qualification is defined and reported

Our provider scorecard puts both options on one sheet.

How Outsourced Sales Development Is Staffed

An outbound sales agency usually sells one of these models, from a dedicated SDR to a full outsourced sales team. Ask which one before you compare anything else.

  • Dedicated SDRs

    One or more reps work only your accounts, so they learn your market and keep conversations consistent.

    Fits when Deals of $50K or more, where every buyer conversation counts.
  • Shared SDR pool

    Reps split their week across several clients. Quick to start, harder to see who works your accounts.

    Fits when Simple offers where coverage matters more than message quality.
  • Pay per booked meeting

    The provider earns a fee per meeting. Without a written definition of fit, the incentive favors volume.

    Fits when Small deal sizes, where almost any conversation has value.
  • Outsourced sales team

    The provider also runs discovery calls and closes deals, so the buyer relationship sits outside your company.

    Fits when You have no one in-house who can sell, and no plan to hire soon.
  • AI SDR tool

    An AI agent finds accounts, writes drafts and can send them. A person on your team must still own each live conversation, as our AI SDR guide explains.

    Fits when A person on your team can review output and handle replies daily.
  • Growth CabOUR MODEL

    Dedicated business developers who work your accounts as part of your team. You know who is talking to your buyers, and you approve accounts and messages.

    Fits when You sell contracts of $50K or more to decision makers you can name.

If all you need is qualified meetings booked in your calendar, without a sales development function around them, our appointment setting service is the simpler option.

Which Metrics Show an Outsourced SDR Team Is Working?

Activity numbers are easy to inflate. Record each stage on its own, for the same accounts and the same period, as our B2B Outbound Evidence Standard sets out.

  1. ContactedA first call or message reached the buyer.
  2. RepliedThe buyer answered, for or against.
  3. Meeting bookedA time is in the calendar.
  4. Meeting heldThe call happened with a buyer who fits.
  5. Opportunity acceptedYour sales team calls it a real deal.
  6. PipelineThe value of accepted opportunities.
  7. RevenueSigned contracts.
Numbers to ask for every month
  • Meetings held, next to meetings booked
  • The share of held meetings that matched your target
  • Opportunities accepted by your sales team
  • Pipeline value and close rate
Numbers that prove little on their own
  • Dials, emails sent and connection requests
  • Open rates, which do not reliably show deliverability
  • Booked meetings with no figure for held meetings

In our cold calling study, meetings set within 2 days of the booking took place 85.4% of the time, against 58.5% when the date was more than 30 days out. Ask your provider how far ahead it books.

How to Evaluate Outsourced SDR Companies

Six checks for every proposal. The answers show which outsourced SDR companies build pipeline you can keep.

  1. Results in a market like yours

    Named clients, the buyers reached and what came out of it.

    Ask for: Opportunities, pipeline and close rate by client.
  2. Data quality

    Lists built account first and verified before sending. Bad data drives bounces, and bounces hurt domains.

    Ask for: How contacts are found and verified.
  3. Domain safety

    Outreach runs on separate domains, so the domain your company uses every day stays safe. Our email deliverability consultant page lists the checks.

    Ask for: Admin access for you to every sending domain and mailbox.
  4. Who talks to your buyers

    Named business developers who write, send and answer, with a person on every live conversation.

    Ask for: Sample messages for your market.
  5. Reporting and definitions

    Every stage defined in writing before the start, from booked meeting to accepted opportunity.

    Ask for: The written definition of a qualified meeting.
  6. Ownership and handover

    Lists, sequences and domains belong to you from day one.

    Ask for: A written handover plan, before you sign.

Red Flags in an Outsourced SDR Proposal

Walk away, or ask hard questions, when a proposal shows any of these.

  • A promised meeting count. To hit it, a provider has to push volume, and volume burns sending domains.
  • Outreach sent from your company's primary domain.
  • Reports built on emails sent and open rates.
  • Pay per meeting with no written definition of fit.
  • Sample messages that still read fine after you swap in another prospect's name.
  • No named person who owns replies from your buyers.
  • First meetings promised within days of signing.

Email in the mix? Our cold email agency guide covers domain ownership and spam rates.

SDR Outsourcing Risks and How to Reduce Them

Outsourcing moves the first conversation with your buyers outside your company. Six risks, each with its control.

  • Thin product knowledge

    An outside rep starts with less context than your team.

    Approve the positioning and messages, and share what you hear on sales calls.

  • Off-brand messages

    Generic copy at volume shapes how buyers see you.

    Sample messages before launch, the swap test and a person on every reply.

  • Burned domains

    Aggressive sending can damage the domain your company uses every day.

    Separate sending infrastructure and a pacing plan.

  • Meetings that never happen

    In our study of 1,380 meetings booked by cold calling, 14.6% ended in a no-show.

    Book slots in the next few working days and confirm every C-level meeting: in the same study, their no-show rate was 18.9%.

  • Rented pipeline

    If only the provider knows how your pipeline is made, it stops when the contract does.

    Own the domains, lists and sequences from day one.

  • Qualified on paper only

    A loose definition fills the calendar and wastes your closers' time.

    A written fit rule tied to your wishlist. In our cold calling study, 92.9% of held meetings matched the client's target.

/ BOOK A CALL

Put our SDRs on your wishlist.

One call on your market, your deal size and the accounts you want. If outbound cannot pay back on contracts like yours, you hear it on that call.

Book a call

Or write to success@growthcab.com

Federico Donatone and Lorenzo Asnaghi, Growth Cab founders, in the New York office
Federico Donatone and Lorenzo Asnaghi, Growth Cab founders, New York