List and signals
Companies that fit your ICP, from Clay, niche directories and buying signals such as a new sales leader or a funding round. Not a database export.
Outbound agency for B2B
Outbound agency for B2B: cold email, LinkedIn and Clay, run as one system
closed:in is an outbound agency in Amsterdam. We build and run the whole outbound engine for B2B companies in Europe, the UK and the US: the list, the enrichment, the copy, the sending infrastructure, the LinkedIn touches and the reply handling, inside your CRM. Qualified meetings on your calendar in two to three weeks, measured weekly.
50+B2B clients
1,000+Campaigns run
20+Meetings a month, average
2-3 wkTo the first meeting
01What an outbound agency does
From a list
to a booked meeting.
Outbound is four jobs that have to work together: who you contact, how you reach them, what you say, and what happens when they reply. Most teams buy a tool for each job and never wire them up. An outbound agency owns the chain end to end. closed:in builds it on Clay, Instantly and your CRM, and runs it for you.
Enrichment and verification
The right people at those companies, with emails and LinkedIn profiles found through a waterfall of 120+ providers and verified before anything is sent.
Copy and sequences
Plain-text emails and LinkedIn messages written per segment, from the signal that put the company on the list, tested weekly.
Infrastructure and replies
Dedicated domains, warmed inboxes, deliverability monitoring, and every reply answered and routed into your CRM as a qualified opportunity.
02What we run for you
Every part of outbound,
as one engine.
Cold email outbound
End-to-end campaigns: domains, inboxes, warmup, lists, copy, sending and reply handling. 98% deliverability across our client infrastructure.
LinkedIn outreach
Connection requests and messages from your own profiles, in the same sequence as the email, so a prospect sees one conversation instead of two channels.
Clay enrichment and RevOps
We are a Clay Solutions Partner. Waterfall enrichment, Claygent research, signal scoring and the sync into Close, HubSpot, Salesforce or Pipedrive.
Reporting and iteration
A weekly report on replies, positive replies, opportunities and pipeline value, and a copy or list change every week based on it. 10% average reply rate across campaigns.
03Where we run it
One engine,
four markets.
The system is the same everywhere. What changes is the language of the copy, the sending windows, the data sources and the rules. Each market has its own page with the details and the cases that match.
Cold email agency, NL and EU
GDPR-proof outbound for Dutch and European B2B companies, with the local market knowledge that cold email across borders needs.
Outbound agency UK
Cold email and LinkedIn for UK B2B companies and for European companies selling into London and the UK.
Outbound agency US
Outbound into the US mid-market: CAN-SPAM compliant infrastructure, US time zones, European pricing.
Cold email agency for SaaS
Qualified demos from your exact ICP for B2B SaaS founders and sales leaders.
04Proof
Documented pipeline,
case by case.
Verzendbazen · E-commerce · NL/BE78 opportunities with a 13.9% reply rate
A complete outbound engine on Clay and Instantly for an e-commerce fulfilment provider, with EUR 1.56M in pipeline in eight weeks.78Opportunities13.9%Reply rate€1.56MPipeline
Endresz · Creative agency · Multi-market247 boutique conversations across Europe
A multi-market outbound system across NL, France, Poland and London, with localised messaging per market and USD 128K+ pipeline in six weeks.247Conversations12%Reply rate$128K+PipelineAll eight written cases and six client videos are on the case studies page.
05Frequently asked
Questions, answered.
What does an outbound agency do?
An outbound agency finds the companies that fit your ideal customer profile, finds and verifies the right people there, writes the outreach, runs it over email and LinkedIn from infrastructure it maintains, and hands the replies to your sales team as qualified meetings. closed:in does all of that as one managed system, wired into your CRM, with a weekly report on replies, opportunities and pipeline.
What does an outbound agency cost?
closed:in engagements run from EUR 4K to EUR 8K per month, priced by the complexity of your ICP, the sending volume, the channels and how deep the CRM work goes. Clay enrichment, sending infrastructure, copy, reply handling and weekly reporting are included at every level. The pricing page explains the four drivers.
Outbound agency or hiring SDRs?
An in-house SDR costs salary, tooling, data and management time, and takes months to ramp. An outbound agency brings the data, the infrastructure, the copy and the process on day one, and the first campaign is live in two to three weeks. Most clients use closed:in instead of a first SDR hire, or next to a small sales team that wants a steady flow of meetings.
Which channels does closed:in run?
Cold email and LinkedIn, in one sequence, on infrastructure we set up and monitor: dedicated sending domains, warmed inboxes, SPF, DKIM and DMARC, deliverability checks. Lists come from Clay, with 120+ data providers in a waterfall, plus niche sources and buying signals that a database does not carry.
How fast do you deliver results?
Setup takes two to three weeks: domains, inboxes, warmup, lists, copy, sequences. Most clients book their first qualified meeting within two to three weeks of launch. Our case studies document 78 to 247 opportunities per engagement.
Where do you run outbound?
From Amsterdam, for B2B companies in the Netherlands, Belgium, the UK, the rest of Europe and the US. Copy is written in the language of the market, sending windows follow the recipient's time zone, and each market has its own page: cold email NL and EU, outbound UK, outbound US, cold email for SaaS.
Ready to run outbound
as a system?
Book a 30 minute discovery call. We will walk through your ICP, your channels and your CRM, and tell you whether closed:in is a fit.