Outbound Agency vs In-House Team: What Year One Costs, What You Keep and the Route in Between

Three ways to get outbound running

I've booked 2000+ meetings for B2B clients on cold email and LinkedIn, and I have a stake in more than one answer to this question, so read the disclosure below before the numbers.

The choice is usually framed as agency or team. There are three routes:

• Outbound agency. An outside team picks the accounts, builds the list, writes the copy, sends and handles replies for a monthly fee. You take the meetings.
• In-house team. You hire SDRs and, at some point, a manager. You buy the tools and build the system yourself.
• Build inside with outside help. A fractional Head of GTM or a consultant sets up the targeting, data, copy and sending in your own tools, then hands it to your hires. You still end up with an in-house team, but it doesn't start from a blank page.

What each route gives you

An agency rents you a system that already runs. A team is a system you own, once someone has built it. The third route pays someone to build it with your people.

Year one: a cost model with stated assumptions

Swap in your own numbers. Mine:

• US SDR. The Bridge Group's 2025 SDR report (351 B2B companies, 78% in North America) puts median on-target earnings at $80,000: $55,000 base and $25,000 variable. I add 20% for employer taxes and benefits and $300 a month for tools and data. That's about $8,300 a month at target, as in fractional SDR vs agency vs in-house SDR.
• US SDR manager. The same report puts median SDR manager on-target earnings at $146,000. Plus 20%, that's about $14,600 a month.
• SDR in Lithuania. €2,300 to €3,200 a month including tools, from my Baltics outbound budget.
• Agencies. Ripe Leads: €3,750 for the first month, then €2,850, tools and data included. CIENCE: $2,000 a month for the campaign team, $499 for its platform and $2,500 per SDR in Europe, plus a setup fee quoted on the call and a bonus per SDR from 60% of their meeting target. SalesRoads: $16,750 per four weeks for two SDRs on phone and email, so 13 invoices a year.
• Outside help on the build route. A fractional lead for the first 4 months. I've used €3,000 a month as a round number. Put in the quotes you get.

Sources, checked 14 October 2026: Ripe Leads, CIENCE pricing, SalesRoads pricing.

Three caveats. The rows don't buy the same thing. A retainer is one email and LinkedIn program, CIENCE and SalesRoads sell dedicated SDRs who also call, and your own team works only for you. The in-house rows start the salaries in month one, which flatters them, and about a quarter of year one goes to ramp. And I haven't converted currencies.

So what do the numbers say? Against US salaries an agency costs less in year one, apart from a phone and email program with two dedicated SDRs, which costs a bit more than two SDRs of your own. Against Lithuanian salaries it's closer: two local SDRs cost more than a published retainer and less than two European SDRs at CIENCE. In-house pays off later, if it does: once the team is ramped and stays, you pay salaries instead of an agency's margin and what the reps learn stays with you. More on the agency side in how much an outbound agency costs.

What each invoice leaves out

In-house

• Hiring, warmup and ramp. Weeks of interviews, 3 to 4 weeks of warmup for new sending domains, then a 3.0-month average ramp, with salaries running from the first day.
• Management. Someone owns the targeting, the offer and the copy and reviews the reps every week. Below $5M revenue The Bridge Group finds one leader per 3.6 SDRs, so a founder managing two reps is normal. A dedicated manager at median pay costs more per month than two CIENCE SDRs with their team and platform.
• Turnover. The Bridge Group reports a 40% median annual SDR attrition and an average tenure of 1.9 years. At that rate a team of two loses about one rep a year, and the replacement ramps again.

Agency

• Setup and bonuses. CIENCE quotes setup on the call and pays each SDR a bonus from 60% of their target. Fair enough, but put both in your year-one total.
• Your time. Approving lists and copy, giving feedback on meetings and taking the sales calls. An agency books meetings. Closing stays with you.
• What the agency learns. Which segments reply and which messages land. Unless you get that written down, it leaves when they do.
• The exit. Ripe Leads hands over the sending domains, copy, contacts reached and reply threads during its 28-day notice, and the full target list after six months of fees. Many agencies publish nothing on this, so ask.

What you keep when it ends

This is where the routes differ most. An in-house team owns the domains, the data, the sequences and the know-how by default, at least until people leave. With an agency it depends on the contract, so ask before you sign, not when you give notice. A message you can send any agency:

"Before we sign: if we stop after month three, which of these do we keep, and in what form? The sending domains and mailboxes, the full lead list, every contact reached, the sequences and copy, the reply history. Please put the answer in the contract."

On the build route, ask whether the playbook exists on paper: how accounts are picked, which triggers you watch, which messages worked, which objections came up.

Pick an agency, an in-house team or the build route

Pick an agency if

• you need meetings this quarter and can't wait for hiring plus a 3-month ramp;
• nobody on your team has run outbound, and nobody has time to manage SDRs;
• you're testing a new market or segment before you commit headcount to it.

Build an in-house team if

• outbound will be a permanent function, not a test;
• it already books meetings and you need more of them;
• you have someone who has managed SDRs, or the budget for one;
• you can carry the ramp and replace reps as they leave.

Build inside with outside help if

• you want the team in-house, but nobody on it has built outbound before;
• you'd rather your first hires run a system than invent one;
• you want the playbook written down before the person who built it moves on.

Hold off on all three if

• you can't yet say in two sentences who buys and why. Close a handful of customers yourself first. Any of these routes scales a message that works much faster than it finds one.

Weighing a single first hire rather than a team? That's a different decision, and I cover it in done-for-you outbound vs hiring an SDR.

Starting with an agency, moving in-house later

You don't have to pick once. An agency can prove that outbound works in your market, then your own team takes over. Plan the handover from the start:

1. Put the exit in the contract. Domains, mailboxes, data, copy and reply history, as in the message above.
2. Start hiring early. With a 3.0-month average ramp, an SDR who starts the month you give notice is still ramping when the agency leaves. Overlap if you can.
3. Keep the domains sending. When I set up outbound for clients, new domains get 3 to 4 weeks of warmup before full volume. If the agency's domains go quiet for weeks during the switch, plan for another one.
4. Get a handover session. Which segments replied, which messages booked meetings, which objections came up and what they'd change.

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