What to expect when you work with a lead generation agency
Most founders sign with a lead generation agency without a clear picture of what happens next, then get anxious in week two when the inbox is quiet. This is what actually happens, in order, so you know what is normal and what is a real problem.
What does a lead generation agency actually do?
A lead generation agency builds and runs the systems that put your offer in front of qualified buyers, typically cold email, LinkedIn outbound, and content built to be found in search and AI answers, then hands you the booked meetings so your team can run the sales conversation. A good agency owns targeting, infrastructure, and copy, not just sending volume.
Weeks 1 to 2: setup, not sending
The first two weeks are infrastructure, not outreach. Sending domains get set up and separated from your primary company domain, inboxes go through a warmup period, and DNS records (SPF, DKIM, DMARC) get configured so mail lands in the inbox instead of spam. In parallel, the agency should be building your target list from your ideal customer profile using buying signals, not pulling a generic database export.
If an agency starts sending cold email in the first 48 hours, that is a red flag, not a sign of speed. It usually means the inboxes are unwarmed and the domain is unprotected, which burns deliverability before the program has a chance to work.
Weeks 3 to 6: first replies, then first meetings
Once sending starts, reply rate is the first signal you should watch, not meeting count. A healthy program shows a stable or rising reply rate within the first two weeks of sending. Meetings lag replies by a week or two because prospects need time to check their calendar and accept a call.
Our own outbound programs average a 3.3% reply rate across 13 B2B sectors, with the first booked meetings typically landing in weeks three to six. See the full breakdown in our cold email reply rate study.
What good reporting looks like
You should get, at minimum, weekly or biweekly numbers on emails sent, reply rate, and meetings booked, plus a short note on what changed and why. "Things are going well" with no numbers attached is not reporting.
- Reply rate trend, rising, flat, or falling, and what is being tested to move it
- Meetings booked and held, booked is not the same as showed up, both matter
- What is being tested this cycle, subject lines, targeting segments, or sequence changes
Red flags before and after you sign
- No warmup period mentioned. Anyone promising sends in the first week of the engagement is skipping the step that protects your domain.
- Vague reporting with no reply rate. If a monthly update does not include a number, ask for one before renewing.
- You are asked to supply the lead list. Targeting is the agency's job. If they need your list to start, they are not doing signal-based targeting themselves.
- No plain-text option. HTML templates with images and buttons read as marketing and hurt deliverability; the agency should default to plain text.
Key takeaways
- The first two weeks are setup, not sending, and that is normal
- Watch reply rate first, meetings lag it by one to two weeks
- Reporting without numbers is not reporting
- You should never have to supply your own target list
Frequently asked questions
What does a lead generation agency actually do?
A lead generation agency builds and runs the systems that put your offer in front of qualified buyers, typically cold email, LinkedIn outbound, and content built to be found in search and AI answers, then hands you the booked meetings so your team can run the sales conversation.
How long before a lead generation agency produces meetings?
Most outbound programs need two to three weeks for infrastructure and targeting before the first send, then the first meetings typically land in weeks three to six. Inbound work compounds more slowly, usually four to eight months before it is a reliable source of meetings.
What should a lead generation agency report on?
At minimum: emails sent, reply rate, meetings booked, and a short note on what is being tested that week. Vague monthly summaries without these numbers are a sign the program is not being actively managed.
Do I need to provide my own lead list?
No. A competent agency builds the target list from your ideal customer profile using buying signals such as job postings, funding, and technology changes. If an agency asks you to supply the list, that is usually a sign they are not doing the targeting work themselves.
Do you work with Indian companies selling to US customers?
Yes. The system, targeting, and reporting are identical to what we run for US-based founders. Meetings are booked against US buyers and time zones, and reporting is scheduled to your working hours.
What is a reasonable early sign a lead generation agency is working?
A rising or stable reply rate in the first month, not meeting count. A program with a healthy reply rate and no meetings yet in week two is normal; a falling reply rate in week two is worth a direct conversation with the agency.
Want a program that starts this way?
Montazzo runs outbound and inbound together for early-stage B2B companies, no SDR team required and live in three weeks. See how we set up and report on every campaign.
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