An outsourced SDR does the prospecting your account executives have no time for: researching the accounts you want, starting conversations with the people who sign and qualifying them before a sales call. Growth Cab provides outsourced SDRs to B2B tech companies with deals of $50,000 or more: trained business developers who work your accounts on LinkedIn and email.
Providers use different names for the same work. Pin down the job first.
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. Buy the whole function this way, with people, data and outreach setup included, and the market calls it SDR as a service or SDR outsourcing.
Account research, first touches, follow-ups and qualification move to an outside team. Your account executives step in once a buyer is qualified.
The provider brings the reps, their management, the data and the sending setup. You bring the offer, the target market and the people who close.
Most 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, on LinkedIn first and email second.
Six jobs, all visible to you, and nothing goes out before you approve it.
Your best customers show which companies to go after next. We turn them into a named account list and find who signs in each one, with the method from our guide to building a B2B lead list.
Every account and every person gets read before anyone writes. Changes such as new leadership or fresh funding decide when a message has a reason to arrive.
The opening starts from a problem the buyer already has. Emails go through the swap test from our cold email agency guide: if another prospect's name fits just as well, the email stays unsent.
LinkedIn first, email second. People on our team write, send and follow up every message.
A person on our team reads every reply and answers it, objections included.
Fit decides the booking: a buyer outside the approved wishlist gets no meeting. Those who fit arrive in your calendar with a brief, so your closer knows who is coming and why.
Both can work. They differ on how soon pipeline starts, who carries the management load and what you keep at the end.
| QUESTION | IN-HOUSE SDR | OUTSOURCED SDR (GROWTH CAB) |
|---|---|---|
| Time to first pipeline | Recruiting, onboarding and ramp all happen before the first qualified meeting. | Pipeline typically starts filling from day 32 to day 47 of the program. |
| Who hires, trains and manages | Your team, with a sales manager who has hours to coach. | Growth Cab, with your sign-off on accounts and messages. |
| Data, tools and sending setup | You choose, buy and configure each one. | We run account selection, enrichment and the sending infrastructure, kept apart from your primary domain. |
| Product knowledge | Builds up inside your company over the years. | Built from your input and approvals. The main risk to manage in month one. |
| What you keep at the end | Everything, as long as the rep wrote it down. | Everything we build: lists, enrichment logic, sequences and sending infrastructure. |
| Best when | Your outbound motion is proven and you want a long-term owner inside the company. | You want pipeline from named accounts soon, and nobody has yet proven which accounts and messages work. |
The salary alone understates the real number.
Compare the cost of each opportunity your sales team accepts. Our provider scorecard puts both options on one sheet.
You can also run both: outsourced SDRs on a new market or segment, in-house reps on the accounts they know.
An outbound sales agency usually sells one of these models. Ask which one before you compare anything else.
One or more reps work only your accounts, so they learn your market and keep conversations consistent.
FITS WHENDeals of $50K or more, where every buyer conversation counts.
Reps split their week across several clients. Quick to start, harder to see who works your accounts.
FITS WHENSimple offers where coverage matters more than message quality.
The provider earns a fee per meeting. Without a written definition of fit, the incentive favors volume.
FITS WHENSmall deal sizes, where almost any conversation has value.
The provider also runs discovery calls and closes deals, so the buyer relationship sits outside your company.
FITS WHENYou have no one in-house who can sell, and no plan to hire soon.
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 WHENA person on your team can review output and handle replies daily.
Our business developers are embedded in your team. They do not juggle forty accounts from a shared pool, and you know who is talking to your buyers.
FITS WHENYou sell $50K+ contracts to decision makers you can name.
Dashboards as published in each case study. 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.
Four B2B companies, four different buyers. Every figure comes from the client's published case study.
REACHEDC-suite and senior leaders in innovation, operations and digital transformation
December 2025 to April 2026One dedicated BDR, meetings across 10+ industries
Read the Ennova case study
REACHEDCMOs, Heads of Marketing, SEO Managers and Brand Managers at enterprise companies
July 2025 to April 2026Meetings at 75 companies in 15+ industries
Read the Digital360 case study
REACHEDSenior HR and talent acquisition leaders at enterprise brands
4 monthsLogistics, insurance, healthcare, consumer goods and eyewear
Read the Jobtome case study
REACHEDPublic sector sales and business development leaders in Italy
90 days, starting from zeroTwo BDRs, 25 companies across 8 industries
Read the TendersTool case studyThese four sit inside a bigger record: 400+ B2B clients since 2022, 10,000+ qualified opportunities, a 23% average close rate and $500M+ in pipeline. Every client story is on the case studies page.
“Working with Growth Cab is easy: they deliver meetings with on-target prospects within the agreed timelines.”
Setup first, then conversations. Here is what happens between kickoff and day 90.
We check whether outbound can pay back at your deal size, with your buyers. If it cannot, we say so.
Target companies first, then the people inside them who sign. Nothing moves until you approve the list.
Each buyer type gets its own opening, built on a problem they already feel. You sign off before the first send.
Business developers start conversations on LinkedIn, follow up by email and sort every reply by fit.
Buyers who fit get a meeting in your calendar, with a brief. Your team runs the call and closes.
For Ennova, the campaign dashboard tracks 33 meetings from December 2025 to April 2026, 21 of them in the first two months.
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.
25.6%of meetings did not happen at the planned time, counting no-shows and reschedules together.
92.9%of the meetings that took place were with prospects who matched the client's target.
11.5 dayswas the median gap from booking to meeting. Only 32.0% were scheduled within a week.
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.
Useful to spot problems. They do not show pipeline.
Six checks for every proposal. The answers show which outsourced SDR companies build pipeline you can keep.
Named clients, the buyers reached and what came out of it.
ASK FOROpportunities, pipeline and close rate by client.
Lists built account first and verified before sending. Bad data drives bounces, and bounces hurt domains.
ASK FORHow contacts are found and verified.
Outreach from separate domains, never the one your company runs on. Our email deliverability consultant page lists the checks.
ASK FORAdmin access for you to every sending domain and mailbox.
Named business developers who write, send and answer, with a person on every live conversation.
ASK FORSample messages for your market.
Every stage defined in writing before the start, from booked meeting to accepted opportunity.
ASK FORThe written definition of a qualified meeting.
Lists, sequences and domains belong to you from day one.
ASK FORA written handover plan, before you sign.
Email in the mix? Our cold email agency guide covers domain ownership and spam rates.
Outsourcing moves the first conversation with your buyers outside your company. Six risks, each with its control.
An outside rep starts with less context than your team.
THE CONTROLApprove the positioning and messages, and share what you hear on sales calls. GTM Consulting clients also get 2 sales calls reviewed by us every month.
Generic copy at volume shapes how buyers see you.
THE CONTROLSample messages before launch, the swap test and a person on every reply.
Aggressive sending can damage the domain your company uses every day.
THE CONTROLSeparate sending infrastructure and a pacing plan.
In our study, 14.6% of 1,380 booked meetings ended in a no-show.
THE CONTROLBook slots in the next few working days and confirm every C-level meeting, where the no-show rate was 18.9%.
If only the provider knows how your pipeline is made, it stops when the contract does.
THE CONTROLOwn the domains, lists and sequences from day one.
A loose definition fills the calendar and wastes your closers' time.
THE CONTROLA written fit rule tied to your wishlist. In our study, 92.9% of held meetings matched the client's target.
Timing and no-show data by lead time, weekday and seniority: our B2B meeting show rate study.
Every qualified buyer takes research and real conversations. That effort pays back on contracts of $50,000 or more.
Product launches for SaaS companies work below $50K: the Maildoso launch reached 50,000 SaaS founders in 7 days. See our LinkedIn lead generation agency page.
The channels and checks behind an outsourced SDR program.
Eight questions B2B teams ask before they hand sales development to a provider.
Ask us directlyOutsourced SDRs are sales development reps on a provider's payroll who work your target accounts. They handle account research, first messages, follow-ups and qualification, then hand each qualified buyer to your account executives. At Growth Cab, trained business developers do this on LinkedIn and email for B2B tech companies whose deals run $50,000 or more.
SDR as a service means buying the whole sales development function instead of building it. The provider supplies the reps, their management, the data and the outreach setup, and you supply the offer and the closers.
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.
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.
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 booked B2B meetings, 69.6% took place, so booked meetings alone overstate results.
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.
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.
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.
Tell us your market, your deal size and the accounts you want. If outsourced SDRs can pay back on contracts like yours, we show you how the first 90 days would run. If they cannot, you hear it on the first call.
Or write to success@growthcab.com
