Outbound Email
Personalised cold email from our own warmed domains. Replies land qualified in your CRM.
Not just another lead agency
We spent years in the trenches, cold calling, emailing, booking the meetings and closing the deals ourselves. Now we do that for you: qualified leads in your inbox, ready to follow up. We start the conversations. You book the calls.
The ColdComplex method opens real conversations with senior stakeholders and decision-makers, from scale-ups to the Fortune 500, at companies like Heineken, Booking.com, KLM and ING.
Trusted by ambitious B2B teams across SaaS, agencies and professional services
01How it works
No spray and pray. A clear system we run the same way every time and sharpen every week, turning a cold market into pipeline you own.
02Services
Everything that turns a cold market into booked pipeline: cold email and LinkedIn that get replies, the sales systems behind them, and a tool check that cuts your costs.
Personalised cold email from our own warmed domains. Replies land qualified in your CRM.
Profile, content and outreach in one weekly rhythm, so the right people see you and your network fills with real buyers.
The CRM, dashboards and automation behind your sales, built and handed to your team. The boring plumbing that makes everything else work.
03Working together
Every engagement starts as a four-month pilot: we build, launch, scale, then decide together what comes next. It runs from €3,000 per month, set to your scope: volume, channels and complexity.
Domains, warmup, ICP and target list, messaging. Your sending system is set up properly.
The first campaign goes live and the first qualified replies start landing in your CRM.
Volume grows and we optimize every week. Meetings book and pipeline builds.
We review the pipeline added together and make the call. The path forward forks from here.
The numbers are there. We move into a six-month partnership and scale what works, across more segments and channels.
We migrate every account and document a full playbook, then train your team. You run it in-house. Handover fee on request.
We stay on as a light monthly advisor. You run it day to day, we keep the strategy and setup sharp.
Not a fit? We part ways with a clean cutover. You keep a copy of the lead list.
04Why ColdComplex
We actually sold and ran business development for 15+ years. Not marketers or GTM gurus guessing. That experience goes into every campaign: the right angle, the right buyer, the right message.
We use the latest tech, yes that includes AI, to find the right people at the right moment, so you do not have to. It works in the background. You get the replies, not the buzzwords.
If your email lands in spam, nothing works. We set up your email infrastructure and follow the best deliverability practices: warmed look-alike domains, placement watched daily. You reach the inbox; your main domain stays clean.
We move fast. Domains warmed, plan ready, first campaign out in weeks and meetings landing early. No three-month ramp.
Signals
We watch for the moments that mean a company is ready to buy, a new role, a funding round, a hiring spree, and reach out right then. Not a random blast to everyone.
Right account, right person, right moment.
05Who it is for
We create the leads. You book the calls. So we fit B2B teams with someone ready to follow up, a market we can name, and the ambition to grow. If that sounds like you, it probably is.
Your time is your scarcest resource, and selling devours it. We run outbound for you, so you stay on the deals only you can close while pipeline keeps coming in.
You have people to follow up: a VP, AEs, SDRs, or a founder still in deals. We hand them a steady flow of qualified leads. They book and close.
If you can name your buyers, founders, HR, revenue, IT, at companies you can list, we can reach them. The clearer the target, the harder we hit.
From your first pipeline to the C-suite at the largest firms. Startup or enterprise, we target the right people. The logo size is not the barrier, relevance is.
06Case studies and testimonials
18 engagements from startup to enterprise, with €8M+ in pipeline behind them. Every number real and referable.
They actually understood enterprise: €2.6M in pipeline from a handful of the right conversations.
We outsource outreach for a living, and they still cleared our own bar: €2.4M in qualified pipeline.
Sixty demos and over half a million in pipeline in our first 90 days, off one clean data set instead of paying for it twice.
Nobody could get us past the filters in our category until these guys did. $1.1M in pipeline.
110 demos and around $520K in ARR pipeline, and they reached the actual decision-makers, not front desks.
Seven retainers in 90 days, and I own the system instead of renting leads.
I'd written off cold outbound, and now my sales team is busy with pre-qualified appointments.
Netherlands A stalled C-suite event, filled: 140+ senior leaders attending.
€2.6M pipeline from a handful of the right conversations.
€2.4M qualified pipeline in the first 3 months.
UK · Netherlands €1M+ pipeline influenced across a three-year partnership.
Netherlands ~40% of every secondary school in the Netherlands replied.
Netherlands 25% reply rate and ~€600K pipeline for a niche, design-led product.
Every number here is real and referable. We'll put you in touch with the client on request.
07Tech stack
We set it up properly, document it, and hand it over. You keep every account and every workflow.
08Free resources
No call, no commitment. Real pieces of the actual work, done for you, free. Start with a live audit of your email setup, then grab a sample of the work itself.
Enter your work email. We check your domain's MX, SPF, DKIM and DMARC live and score how ready it is for cold outbound. Instant, no call, no signup.
Give us one prospect, a name and their company, and we return them fully enriched: verified work email, direct phone and LinkedIn.
Enrich a prospect → Free sampleTell us who you sell to and we send twenty real, enriched prospects from your market. Judge the list yourself, before you commit to anything.
Get my sample prospects →FAQ
The first four weeks are build weeks: domains, warmup, targeting and copy. First replies usually land in week three to five, and volume grows from there.
Yes, for targeted, relevant B2B outreach with a clear opt-out. We use verified business data and clean unsubscribe flows.
No. We use separate look-alike sending domains, warmed up carefully. Your main domain and reputation are never at risk.
Half a day for the kick-off session and input on your audience. CRM access is optional, depending on the scope and what you want. We build and manage the rest.
Scope sets the price: your sending volume, how many channels you run, and how much CRM and multi-threading it takes. It runs from €3,000 per month and scales from there, usually as a four-month pilot. That is a fraction of the pipeline it builds, and you get a fixed number after a short scoping call. No hourly billing.
Nothing automatic, and no lock-in. At month four we review the pipeline added together and decide the path: scale it up, keep it steady, hand it to your team with the full playbook, or stop. You own every domain, list and system from the pilot either way. Most teams continue, because by then the pipeline speaks for itself.
Go-to-market, or GTM, is simply how a company sells: who you target, the channels you reach them through, the message, and the systems that tie it together. When we say we run your GTM, we mean we build and operate everything that sells for you, not just send a few emails.
Revenue operations, or RevOps, is the plumbing behind sales and marketing: the CRM, the data, the routing and the reporting. It makes sure every lead is tracked, every reply lands in the right place, and you can see what is working. We set this up so your pipeline is measurable, not a black box.
Your ideal customer profile, or ICP, is a clear description of the companies and people most likely to buy: their industry, size, role and the signals that show they are ready. We build the target list from your ICP, so outreach goes to the right accounts, not to everyone.
Inbound is when buyers come to you, through your website, content or ads. Outbound is when you reach out first, to the specific accounts you want. We run outbound, cold email and LinkedIn, so you are not waiting for the right buyer to find you.
Deliverability is whether your emails actually reach the inbox instead of the spam folder. It depends on warmed domains, clean lists and sensible sending habits. We manage all of it, on separate look-alike domains, so your main domain and reputation stay safe.
Yes. We work just as well with a tight list of named accounts as with a broad market. If you have fifty dream companies, we map the right people inside each one and run a precise, high-touch campaign. Small and specific is often where outbound performs best.
Yes. A small or niche market is an advantage, not a limit. We map and track every account and every persona in your space, so we can run a hyper-personalised approach to each one, with research and messaging built for that exact buyer. The narrower the focus, the sharper the outreach.
Start with a half-day working session. You leave with a target list, a plan to measure it, and early wins, whatever you decide next.
Contact
Tell us about your pipeline and what you want to fix. The team reads every request and gets back to you within eight hours.