Outbound agencies · Outbound sales agencies · US and UK

Outbound agency ten outbound sales firms, compared

An outbound agency finds the companies that should buy from you, contacts the right people there by email, LinkedIn and phone, and books meetings for your sales team.

Some rent you SDRs by the month.

Others build a signal-led system you keep.

This page compares ten outbound sales agencies we checked on their own websites on October 16, 2026.

It covers what they run, how they price (only where prices are published), how to evaluate one, the US and UK rules for each channel, and when building in-house is the better call.

Reviewed by Dan Keegan, GTM Quest · October 16, 2026 · 29 sources linked below

What an outbound agency runsthe five parts of a modern outbound engine

  1. 01Signal-led listsWHO AND WHY NOWICP · TRIGGERS · DATA
  2. 02EmailSCALEDOMAINS · DKIM · DMARC
  3. 03LinkedInCONTEXTPROFILE · CONNECT · DM
  4. 04PhoneCONVERSATIONDIALS · TPS · CTPS
  5. 05SDRs and routingMEETINGSQUALIFY · BOOK · CRM

Agencies compared10

$80K
median SDR on-target earnings ($55K base, $25K variable), survey of 351 B2B companies
3.0 months
average SDR ramp time, the lowest since 2010; average tenure is 1.9 years
$11,950
one outsourced SDR program per 4-week period, the base price one US agency publishes
£17.5m
maximum UK fine under PECR (or 4% of global turnover) since February 5, 2026
A card titled Outbound agency, with five labeled blocks: Signal-led lists, Email, LinkedIn, Phone, and SDRs and routing.
Five parts of an outbound engine: who to contact and why now, three channels to reach them, and the people and routing that turn replies into meetings.

01/ the service

What an outbound agency does and what you are actually buying

An outbound agency runs prospecting for B2B companies that cannot, or do not want to, run it themselves.

The work has five parts: deciding who to contact and when, reaching them by email, reaching them on LinkedIn, calling them, and turning replies into qualified meetings in your CRM.

Agencies differ in which of those parts they lead with.

Some are calling floors with SDRs on dialers all day.

Some are cold email shops that send at scale from dozens of domains.

Some sell SDR-as-a-service: a named rep, managed by them, working your accounts.

A newer group builds signal-led systems in tools like Clay and runs or hands them over.

The question is not which is best in general.

It is which part of outbound is your bottleneck: knowing who to contact, having the infrastructure to reach them, or having people to hold the conversation.

Outbound agency, outbound sales agency, outbound marketing agency: the labels

Outbound sales agency and outbound agency usually mean the same thing: a firm that books meetings through direct outreach.

Outbound lead generation agency puts the emphasis on the list and the first touch, sometimes stopping at a qualified lead rather than a meeting.

Outbound marketing agency is looser.

Some use it for the same prospecting service; others mean paid ads, direct mail and events aimed at a cold audience.

Ask which channels are in scope before you compare quotes.

A B2B outbound agency is simply one that sells to businesses, which is most of them.

02/ the channels

The five things an outbound agency runs and the rule that governs each

01

Signal-led lists

Companies chosen because something happened: a funding round, a new leader, hiring for a role your product supports, a visit to your pricing page.

The list is refreshed as events occur, not bought once.

See signal-based selling.

Rule: UK GDPR applies to named contacts

02

Email

Short sequences sent from separate domains, authenticated and warmed up, at low volume per inbox.

Still the cheapest way to reach a long list.

Depth is on our cold email agencies page.

Rule: CAN-SPAM (US), PECR (UK)

03

LinkedIn

Profile views, connection requests and messages, often from your own team's accounts.

It adds context email lacks, but LinkedIn itself bans bots and automation that send messages or add contacts.

Rule: LinkedIn User Agreement

04

Phone

Live calls by SDRs, increasingly with AI research behind them.

Bridge Group's 2025 data still puts phone at the top of the median SDR's day: 44 of 112 daily activities.

Rule: FTC TSR (US), TPS and CTPS (UK)

05

SDR-as-a-service

A rep, or a pod of reps, managed by the agency and working your accounts across all three channels.

You pay for capacity and management, not for a system you keep.

See outsourced SDR companies.

Rule: you stay liable for what they send

03/ the agencies

The best outbound sales agencies checked October 16, 2026

Ten B2B outbound agencies, from UK SDR-as-a-service teams to US calling floors and Clay-built cold email shops.

Each line is what the firm says on its own site.

If you want outbound inside a full go-to-market build rather than as a rented channel, that is what a go-to-market agency like ours does.

UK-based

01

GTM Quest

Our firm

London, UK (works with US and UK teams) · Founded 2024 · Dan Keegan, founder

A London go-to-market agency that runs outbound as one part of a pipeline system: ICP and positioning first, then buying signals built in Clay, sending domains in the client's name, short signal-led email and LinkedIn sequences, and CRM routing and RevOps, measured on meetings held and pipeline. It does not run a calling floor; where phone capacity is needed it works alongside the client's reps or an SDR partner.

Best for: B2B companies with product-market fit that want a signal-led outbound system they own, not rented activity

Book a 15-minute call →

Services

ICP and positioningSignal-led outbound (Clay)Email infrastructure and deliverabilityLinkedIn content, outreach and adsCRM routing and RevOpsFractional GTM leadership

Methods

The Quest System (Neon + Clay + Claude Code)

Published pricing

Scoped and quoted in writing after the discovery call.

02

Sopro

Brighton, UK (also Miami and Skopje) · Founded 2015 · Rob Harlow and Ryan Welmans, founders

A fully managed B2B prospecting service combining email, LinkedIn messaging, display ads, phone and physical mail in one strategy, with a bespoke audience built fresh for each client, intent tracking from website visits and a live reporting portal.

Best for: UK and US B2B firms that want hands-off multichannel outreach with transparent reporting and no minimum contract

Services

Email outreachLinkedIn outreachDisplay ad audience syncPhone outreachGifting and mailIntent tracking

Published pricing

Sopro says "pricing starts at around £3K per month", with no minimum contract. Source ↗

Checked 2026-10-16: Sopro · Sopro pricing · Sopro, About us

03

Punch!

UK (registered in England; teams in the UK, US and South Africa) · Chris Muldoon, CEO

A full-funnel outbound agency for mid-market and enterprise B2B that pairs its HotSauce buying-signal data with AI-agent outreach across five channels and human SDRs, who map buying committees and contact them by phone, email, LinkedIn and gifts, plus 1:1 ABM.

Best for: Mid-market and enterprise B2B teams that want signal-led SDRs and ABM in the UK and US

Services

Human SDRs (phone, email, LinkedIn)Buying-signal dataAgentic outreachAccount-based marketingGifting

Methods

HotSaucePriority Intent

Published pricing

Not published.

Checked 2026-10-16: Punch! · Punch!, Our people

04

Operatix (part of memoryBlue)

London, UK (offices in California, Texas and Singapore) · Founded 2012 · Aurelien Mottier, co-founder (President of memoryBlue after the 2023 merger)

An outsourced sales development firm that works only with B2B software vendors, running SDR pods by tech vertical (cybersecurity, cloud, fintech and more) in 22 languages, plus inbound lead qualification and channel acceleration. memoryBlue acquired it in July 2023.

Best for: B2B software vendors that need SDR coverage in several countries and languages

Services

Outbound sales developmentInbound lead qualificationChannel accelerationMarketing accelerationMultilingual SDR teams

Published pricing

Not published.

Checked 2026-10-16: Operatix · Operatix pricing and ROI calculator · memoryBlue acquires Operatix (Operatix news, July 2023)

05

ProspectAware

London, UK · Founded 2009

A London SDR-as-a-service firm for technology companies, specialized in IT, OT and cybersecurity, offering a dedicated SDR team or meeting-based campaigns across the UK and Ireland, the Nordics, Benelux, Germany and the Middle East, with a live client portal.

Best for: Technology and cybersecurity vendors selling into UK and European enterprise accounts

Services

Outsourced SDR as a ServiceAppointment settingAccount mappingCampaign-specific data buildClient reporting portal

Published pricing

Not published.

Checked 2026-10-16: ProspectAware

US and international

06

SalesRoads

Boca Raton, Florida

A US outsourced sales development and appointment setting firm built around outbound calling and personalized email, with each program including a client strategist, SDR performance coach, optimization specialist and research team. It publishes program prices that fall per SDR as the team grows.

Best for: US B2B companies that want phone-led SDRs with published, scaled pricing and no long-term contract

Services

Outsourced SDRsB2B appointment settingOutbound callingOutbound emailList buildingAccount reactivation

Published pricing

$11,950 per 4-week period for one SDR; $16,750 for two; $23,500 for three; $43,150 for six. "No long-term commitment. Cancel anytime." Source ↗

Checked 2026-10-16: SalesRoads · SalesRoads pricing

07

CIENCE

United States

A managed GTM execution firm that sells a five-day GTM setup sprint, a monthly strategic team and its graph8 platform, with SDR capacity added and priced separately.

Best for: Teams that want itemised, published pricing and the option to add SDR seats by region

Services

GTM system setupIntent and visitor-based campaignsAI-assisted outreachSDR capacityRevenue system builds

Methods

graph8 platform

Published pricing

GTM setup $5,000 one-time; strategic team $2,000 a month; graph8 platform $499 a month ($7,499 the first month). SDR capacity priced separately. Source ↗

Checked 2026-10-16: CIENCE · CIENCE pricing

08

SalesHive

United States (remote-first) · Founded 2016

A US sales development agency whose 100% US-based SDRs run cold calling and personalized email on a platform it built itself, with a dedicated strategist per client. Plans run from phone-only to two-SDR phone and email teams, month to month.

Best for: US B2B companies that want US-based cold callers on a flat monthly fee without a long contract

Services

Sales strategyList buildingEmail outreachCold callingAppointment setting

Methods

SalesHive AI platform

Published pricing

Not published.

Checked 2026-10-16: SalesHive · SalesHive pricing · SalesHive, About

09

Callbox

Encino, California (six offices across four continents) · Founded 2004 · Rom Agustin, CEO

A global outsourced B2B lead generation and appointment setting firm running multichannel campaigns (phone with human SDRs and AI voice agents, email, LinkedIn and social, chat, events) with multilingual SDR teams, plus ABM and cross-border lead generation.

Best for: Companies that need multilingual, multichannel appointment setting across several regions

Services

Appointment settingOutsourced SDRsMultilingual SDR teamsAccount-based marketingEvent and webinar marketingCross-border lead generation

Published pricing

Not published.

Checked 2026-10-16: Callbox · Callbox, About

10

Growth Engine X

HQ not stated on its site · Eric Nowoslawski, founder

A Clay-heavy cold email agency for B2B companies with $1M+ revenue, founded by a former Clay team member, that says it sends 8 million+ emails a month for clients and offers qualifying companies a free test campaign before they commit. Its offer is email-first.

Best for: B2B companies with a large market (it cites 100K+ contacts) that want high-volume, Clay-built cold email

Services

Cold email infrastructureClay list building and enrichmentOffer and copy testingCampaign scaling

Methods

Free test campaign

Published pricing

Not published.

Checked 2026-10-16: Growth Engine X · Clay Solutions Partner directory: Growth Engine X

Nobody paid to appear here.

We list firms whose core offer is outbound run for clients: prospect lists, email, LinkedIn, phone and SDRs.

Software platforms are excluded, even when they offer a managed tier.

Prices appear only where a firm publishes them on its own website.

Results quoted on agency sites are their own claims, not ours.

For email-only specialists see cold email agencies; for rep-led firms see outsourced SDR companies.

04/ one account

How an outbound program moves one account from signal to meeting

A good outbound agency can tell you, for any account, what triggered contact, what was sent, and who owns the next step.

This is the sequence to ask them to show you.

Something changes at the account

The signal

New VP of Sales hired; three SDR roles posted

The play

Account enters the list with the reason recorded

Owner: Data / GTM engineer

The example roles and triggers above are illustrative.

The point is the record: if an agency cannot tell you why an account was contacted, it is running a list, not a program.

A left-to-right diagram showing signals feeding an account list, which feeds email, LinkedIn and phone lanes, converging on reply routing, a qualified meeting and the CRM, with a feedback arrow back to signals.
Signals decide who enters the list. Three channels reach them. Replies are routed to a person, meetings land in the CRM, and the results feed back into which signals are worth keeping.

05/ what it costs

Outbound agency pricing only what firms publish

Most outbound sales agencies quote after a call.

These are the firms on this page that publish prices or a clear pricing model on their own site, checked today.

FirmModelPublished price or termsSource
SalesRoadsScaled SDR program, priced per 4 weeks$11,950 per 4 weeks for one SDR; $16,750 for two; $43,150 for six. "No long-term commitment. Cancel anytime."SalesRoads pricing
CIENCESetup, then monthly team and platform$5,000 one-time setup, $2,000 a month for the team, $499 a month for its graph8 platform: $7,499 the first month. SDR capacity priced separately.CIENCE pricing
SoproManaged multichannel retainerPricing "starts at around £3K per month", with no minimum contract.Sopro pricing
SalesHiveFlat monthly fee per planPlans custom quoted by team location, channels and volume. No setup fees; month to month, with annual plans at a lower monthly rate.SalesHive pricing
Growth Engine XFree test campaign, then partnershipOffers qualifying B2B companies a test campaign "at no cost" before they commit. No fees published.Growth Engine X
OperatixProgram sized from a revenue targetNo prices; an ROI calculator recommends a program from deal value and revenue target.Operatix pricing
GTM QuestScoped and quoted in writing after a callFees, data and sending tools as separate linesNot applicable

Read the unit, not just the number. SalesRoads prices a program per four weeks, which is thirteen billing periods a year: one SDR at its published base price comes to $155,350 a year, including the strategist, coach, data and dashboard it lists.

CIENCE prices the system and the team separately from SDR seats.

Compare like for like.

What drives the price: how many SDRs, whether phone is included, the cost of data, the number of sending domains and inboxes, and whether you are renting activity or buying a system you keep.

06/ build or buy

Outbound agency vs in-house SDR team the honest trade-offs

Outbound agencyIn-house SDR team
Time to first meetingWeeks: the agency brings people, data and infrastructureHire, then ramp: Bridge Group puts average SDR ramp at [3.0 months](https://www.bridgegroupinc.com/research/2025-sdr-models-metrics-report-the-bridge-group)
Cost you seeA retainer or per-SDR fee with tools and data includedMedian SDR OTE of [$80K](https://www.bridgegroupinc.com/research/2025-sdr-models-metrics-report-the-bridge-group), plus tools, data, management and benefits
Turnover riskThe agency replaces the rep; your ramp may resetAverage tenure [1.9 years](https://www.bridgegroupinc.com/research/2025-sdr-models-metrics-report-the-bridge-group); median annual attrition 40%
Product knowledgeShallow at first; depends on how you brief themDeep, and it compounds
What you keepDepends on the contract: insist on domains, lists and sequencesEverything, including the people who become AEs

→ Agencies win on speed and on testing a market. In-house wins once outbound is a permanent, core channel.

Bridge Group's 2025 survey of 351 B2B companies also found just 60% of SDRs at quota, the lowest it has recorded.

Hiring is not a safer bet by default.

It is a longer one.

A horizontal bar chart of median SDR daily activities by channel: 44 phone, 41 email, 19 LinkedIn and 8 text or other, out of 112.
Median total daily activities per SDR, 2025: 112 in all. Source: The Bridge Group, SDR Models, Motions & Metrics 2025 (351 B2B companies, 78% North America-based).

07/ channel mix

Why outbound sales agencies still run phone and what the data says about volume

Bridge Group's 2025 report puts the median SDR at 112 activities a day: 44 phone, 41 email, 19 LinkedIn and 8 text or other.

Phone-centric teams in the same survey averaged 56 dials and 4.6 quality conversations a day, against 28 dials and 3.4 conversations for email-centric teams.

Email on its own is a numbers game.

Gong's analysis with Jason Bay found the average rep had to send 344 cold emails to land one meeting, and that pitching in a cold email cut reply rates by as much as 57%.

That is why the better outbound agencies use email to open the door and phone or LinkedIn to hold the conversation.

The opposite failure is volume.

An agency that answers every problem with more sends burns domains and your brand.

Ask how it decides who not to contact.

08/ deliverability

Outbound deliverability the minimum any agency must meet

Email is where outbound programs break first, and the damage lands on your domain.

Ask any outbound agency how it handles each step.

The full checklist is on our cold email agencies page.

Send from separate domains in your name

Cold outreach belongs on secondary domains, so a reputation problem never reaches the domain your invoices and proposals come from.

The domains should be registered to your company, so you keep them if you leave.

For sending volumes, warm-up and the Yahoo and Microsoft rules, see cold email agencies.

09/ the rules

Outbound compliance by channel US and UK

Every outbound channel has its own rules, and hiring an agency does not move the liability.

This is a summary, not legal advice.

ChannelUnited StatesUnited Kingdom
EmailCAN-SPAM makes no exception for business-to-business email. Accurate headers, honest subject lines, a postal address, a working opt-out. Up to $53,088 per violating email.PECR's email rule does not apply to corporate subscribers (companies, LLPs). Sole traders and some partnerships need consent or the soft opt-in. UK GDPR applies to named contacts.
PhoneThe FTC says most calls between a telemarketer and a business are exempt from the Telemarketing Sales Rule; calls selling nondurable office or cleaning supplies are not. The FCC also regulates telemarketing calls.Screen against both the CTPS and the TPS before live B2B calls, plus your own do-not-call list, and display your number. Automated calls need consent.
LinkedInNo outreach law specific to LinkedIn, but LinkedIn's User Agreement bans bots that send messages, add contacts or scrape profiles. Accounts using them risk restriction.Same LinkedIn rules. UK GDPR applies to the personal data you collect from profiles.
Who is liableUnder CAN-SPAM, both the company promoted and the company that sends may be held responsible.The ICO can now fine up to £17.5 million or 4% of global turnover under PECR, from February 5, 2026.

If an agency cannot explain how it screens UK numbers against the TPS and CTPS, or how it separates corporate subscribers from sole traders, it is putting the risk on you.

For lead generation rules in more detail see lead generation agencies.

10/ choosing

Hire an outbound agency or build in-house? pick your situation

Where are you with outbound today?

Agency pilot

Test with an agency first

You do not yet know if outbound works for your offer.

A fixed pilot with an agency tells you faster and cheaper than hiring a team to find out.

  • ✓ Fixed term with stated measures
  • ✓ Domains and data in your name
  • ✓ Exit without penalty

Risk: three months is short for long sales cycles.

If you need a senior person to make this call and own it, a fractional sales or GTM leader can help; Fractional Quest lists them.

11/ before you sign

How to evaluate an outbound sales agency ten questions to ask

01

Which part do you lead with?

Lists, email infrastructure, calling or SDRs.

Match it to your actual bottleneck.

02

What triggers contact?

Named signals, how they are detected, and how fast the first touch follows the event.

03

Where does the data come from?

Named providers, verification before sending, and how UK sole traders and TPS-registered numbers are filtered.

04

Whose domains and accounts?

Sending domains registered to your company.

LinkedIn outreach without bots that break the User Agreement.

05

What counts as qualified?

A written definition agreed before launch and checked in your CRM, not the agency’s dashboard.

06

Who are the people?

Named SDRs and managers, where they are based, and what happens when one leaves.

07

What do you report?

Meetings held, opportunities and pipeline by signal and channel.

Not opens.

08

How is it priced?

Per SDR, per program, per meeting or retainer, with data and tools as visible lines.

09

What is the minimum term?

Month to month, a fixed pilot, or a long contract.

Several firms on this page publish month-to-month terms.

10

What do we keep if we leave?

Domains, lists, sequences, call notes and reply history, handed over in a usable format.

12/ walk away

Red flags in an outbound agency proposal what we would question

Guaranteed meetings, no definition

A guarantee without a written definition of "qualified" means the agency decides what counts.

Sending from your main domain

One complaint spike can push your everyday email into spam.

Outbound belongs on separate domains.

LinkedIn automation at scale

LinkedIn says accounts using bots or automation tools risk restriction or shutdown.

If those are your team's accounts, that is your risk.

No answer on UK phone rules

Live B2B calls in the UK need TPS and CTPS screening.

An agency that cannot show this is exposing you.

Data that leaves with them

If the lists, sequences and reply history stay in the agency’s tools, you start from zero when you leave.

Reporting stops at activity

Dials and sends are inputs.

Ask for meetings held and pipeline, by channel and signal.

13/ GTM Quest

How GTM Quest runs outbound inside the Quest System

We are a GTM agency, not an SDR shop.

Outbound is one channel in a pipeline system we build on Neon Postgres, Clay and Claude Code, then run with you or hand over.

  1. 01

    ICP and offer

    Which companies, which people, which problem, and the one offer worth a reply. Written down before any data is bought.

    WEEK 1
  2. 02

    Signals in Clay

    Hiring, funding, leadership changes, engagement with your content and site visits, scored against your closed-won deals and stored in Postgres.

    WEEKS 1 TO 2
  3. 03

    Infrastructure in your name

    Separate sending domains registered to you, SPF, DKIM and DMARC, warm-up, and low daily volume per inbox.

    WEEKS 1 TO 3
  4. 04

    Email and LinkedIn that start with the signal

    Short emails that open with the reason for writing now, plus manual LinkedIn touches from your team. UK sole traders filtered out unless consent applies.

    WEEK 3 ON
  5. 05

    Replies routed to people

    Positive replies go to your rep, or to an SDR partner if you need phone capacity, with the trigger and context attached. Opt-outs suppressed everywhere.

    DAILY
  6. 06

    Measured on pipeline

    Meetings held, opportunities and pipeline by signal, reviewed with sales. Signals that do not convert get dropped.

    WEEKLY

Outbound works better alongside content and targeted accounts; see our ABM agency page and LinkedIn lead generation agencies.

If you want a senior lead to own the plan, talk to a GTM consultant.

15 minutes · video or phone

Book 15 minutes on your outbound

Tell us who you sell to and what outbound you run today. We come back with what we would fix first, and whether an agency, a hire or a system is the right next step.

  1. 0115 minutes, video or phone
  2. 02We look at your ICP, signals and channels
  3. 03A written next step after the call
  4. 04US and UK rules covered
Open the calendar in a new tab →

Pick a day that suits · live availability

14/ questions

Outbound agencies FAQ

What B2B teams ask before they hire an outbound sales agency, or decide to build the team themselves.

It finds companies likely to buy, contacts the right people there by email, LinkedIn and phone, and books qualified meetings for your sales team.

See what an outbound agency does.

It depends on your bottleneck: SDR capacity (SalesRoads, SalesHive, Operatix), managed multichannel outreach (Sopro, Callbox), cold email at scale (Growth Engine X), or signal-led outbound inside a wider GTM build (GTM Quest).

See the agencies.

An agency that books meetings with business buyers through direct outreach rather than ads or inbound.

Most outbound agencies are B2B.

See the five channels.

Usually little: both often mean prospecting by email, LinkedIn and phone.

Some outbound marketing agencies also mean paid ads, direct mail and events aimed at cold audiences, so confirm the channels in scope.

See the labels.

SalesRoads publishes $11,950 per four weeks for one SDR program; CIENCE publishes $7,499 for the first month including setup; Sopro says pricing starts at around £3K a month.

See pricing.

Bridge Group puts median SDR on-target earnings at $80K before tools, data and management, with a 3.0-month ramp.

Agencies cost more per rep but start faster.

See build vs buy.

An agency focused on building the target list and making first contact, sometimes handing over a qualified lead rather than a booked meeting.

See also lead generation agencies.

Renting sales development reps managed by an agency, priced per rep or per program, who work your accounts by phone, email and LinkedIn.

See outsourced SDR companies.

Yes, with rules: email to corporate subscribers is allowed without prior consent, but sole traders need consent or the soft opt-in, and live calls must be screened against the TPS and CTPS (ICO).

See compliance.

The FTC says most calls between a telemarketer and a business are exempt from the Telemarketing Sales Rule, except calls selling nondurable office or cleaning supplies.

FCC rules can still apply.

See compliance.

LinkedIn's rules ban bots and automation that send messages or add contacts, and accounts using them risk restriction.

Ask exactly how an agency runs LinkedIn before you hand over accounts.

When outbound is a permanent, core channel and you can manage SDRs well.

Use an agency to test a market or add capacity fast.

See hire or build.

Book 15 minutes · London · US and UK

Know who to call, and why now. Outbound your sales team wants.

A 15-minute call, a written next step, and an outbound system built on your data and domains. We run it with you or hand it over.