Macklin Buckler · GTM advisory

You have customers.
Let’s make outbound repeatable.

I work with B2B founders and their first GTM hires to decide who to target, what to test, and how to run it. Weekly working sessions on your actual business. Your team does the work; I help them make better decisions.

Discuss advisory €2,000 / month · Start with one month.
See the first 30 days
Macklin Buckler speaking on a panel, microphone in hand.

Recent stages

MIT Universal AI · March 2026 Clay Club, Warsaw and Berlin · 2025, 2026

For founders and the person running GTM

The first customers came through you.
The next ones need a process.

You’ve closed deals. You know there’s something here. Now someone needs to turn those wins into targeting, messaging, and a way of working the team can repeat.

  • Your first GTM hire needs a second opinion

    They can execute. They need someone experienced to review the plan, challenge assumptions, and explain what to change.

  • You’re about to spend on the next move

    A new segment, another tool, a campaign, or a hire. We work through what you need to learn before committing more time and money.

  • Outbound is happening, but the learning isn’t

    Lists, sequences, and CRM activity are piling up. We connect the work to a clear question and decide what the results actually tell us.

A good fit

Early customer wins.
Someone ready to execute.

You’re a B2B software or technology team with some customer evidence and a live GTM decision. A founder or GTM owner has time to act between sessions, and your budget covers execution as well as advice.

You can be starting outbound or improving a motion that already exists. The important part is having something to learn from and someone who will do the work.

Need someone to own the build?

My team at Harochi builds and runs outbound. This advisory is for teams keeping execution in-house.

The first 30 days

One priority.
A plan your team can act on.

€2,000per month · plus VAT where applicable

We start with the most useful decision in front of you. By the end of the month, you have a recommendation, a defined test, and a record of what your team has done and learned.

01

Choose the priority

We review your customer evidence, current work, and constraints. I write a short brief on what deserves attention, what we know, and what we’re assuming.

02

Define the next test

We agree the audience, message or offer, channel, owner, measure of progress, and review date. You know what to do next and why.

03

Review the actual work

Your team brings the campaign, targeting, workflow, or hiring brief. I review it with you and explain the changes I’d make.

04

Decide what comes next

We look at the work completed, results available, and questions still open. Then we decide whether to keep testing, change direction, or move on.

What’s included

  • Four 45-minute working sessions per month, usually weekly.
  • A shared decision brief, test plan, and progress record.
  • Review of work related to the agreed priority.
  • One consolidated async review each week, up to 30 minutes of my review time.

How we work

You bring the context and own implementation. I lead the review, make recommendations, and capture the decisions. We work on one main priority at a time.

Start with one month. At the end, we decide together whether another month would be useful. You keep the working documents either way. No separate audit purchase is required.

Discuss advisory

What the work looks like

A decision you can use on Monday.

The output is a short working document your team can use to make the next move. Here’s an illustrative example of an initial targeting decision.

Example only. This is not a client case study or a promised result.

Decision brief / 01

Which segment should we test first?

What we know
The founder has won customers in two segments. The team’s outbound list mixes both, so results are hard to interpret.
Recommendation
Start with the segment where customer evidence is strongest. Keep the other segment out of this first test.
The test
The GTM owner prepares one segment-specific list and message. We review both before launch, then track relevant replies, qualified conversations, and objections.
The next decision
Review after two weeks. Decide whether to refine the message, continue gathering evidence, or test the second segment. Low volume may mean we need more time.
Defer for now
New automation and a larger tool stack until the team has a clearer view of who responds and why.

Where the advice comes from

I build and run outbound with my team at Harochi. That operating work is where my advice comes from. The example below is from a Harochi implementation engagement; the advisory gives your team my judgment and review while you own the execution.

"Macklin and his team built our entire outbound engine from scratch. Within six months, outbound had generated over a million euros in pipeline and carried us into our Series A."

Roeland Delrue, Co-founder at Aikido Security · Harochi client

Engagement ran Seed to Series B

Experience

Where I've done the work.

Experience from building outbound with Harochi and working inside B2B sales teams.

Client teams

Outbound and pipeline systems, built with my team at Harochi.

  • Vidyard
  • Champ AI
  • Joymore
  • Dalton
  • Distill Labs
  • Rig.dev
  • ProductSense
  • Finally
  • Vivid
  • Damisa
  • Up
  • Aikido
  • ThingsRecon
  • Verified Visitors

Former employers

  • Google
  • Leapsome

Team workshops

Get the team clear on the next move.

A focused working session around your team’s GTM questions. Send the context in advance. We work through real targeting, campaigns, or pipeline decisions and leave with priorities, owners, and next steps.

Workshop formats and pricing

Virtual, 3 hours

€3,000

Review the evidence, work through the decision, and agree what to do next.

In person, 3 hours

€5,000

The same focused working session, together in your office.

In person, full day

€10,000

Morning review, then a working afternoon on one agreed part of the plan. Scope agreed in advance.

For 4–20 people. Plus VAT where applicable; travel billed at cost. Suitable for one team or a small group of portfolio companies. Larger audiences can be covered through a talk.

Discuss a workshop

Speaking

Revenue That Learns

A keynote on why most revenue teams repeat instead of learn, and what changes when the system does the learning.

What the audience leaves with

  • A test for telling a repeating system from a learning one
  • The three signals worth instrumenting before anything else
  • Where AI belongs in a revenue team, and where it does not
"A system that repeats uses humans to interpret what happened. A system that learns uses AI."

MIT Universal AI, Warsaw · March 2026 · 650+ attendees

Book me
Macklin Buckler speaking from a lectern at MIT Universal AI in Warsaw. The slide behind him reads: a system that repeats uses humans to interpret what happened, a system that learns uses AI.

About

I still do the work.

I've been selling B2B since 2017, starting in New Business Sales at Google, then leading sales and GTM at growth-stage startups in Europe and the US. At Harochi, my team and I work inside live outbound and pipeline systems every week. That's where the opinions on this site come from.

In advisory, I work directly with you and the person doing the work. We use your customer conversations, campaigns, and decisions to develop a better way of running GTM. I’m based in Berlin.

Roles and recognitions

  • Co-founder, Harochi
  • HubSpot for Startups Mentor
  • Hubble Mentor
  • Clay Artisan Partner
  • HeyReach Expert
LinkedIn profile

GTM, actually

Notes from the work.

Once a week, I write down exactly what worked in outbound last week, and what didn't. Written by a founder who's still doing the work.

Browse past issues

Start with a conversation

What does your team need to figure out next?

Tell me what you sell, who buys it today, the decision you’re facing, and who will do the work. We’ll arrange a short fit conversation before you commit.

Email me about advisory

€2,000/month. Four working sessions. Start with one month.
The fit conversation is free; it’s to agree whether the work makes sense.

One specific question?

Book a standalone 30-minute session for $150. Bring one decision and the relevant context. We’ll work through it together on the call. This is optional and separate from monthly advisory.

Book a one-off call · $150

Need implementation?

If you need a team to build and run outbound, talk to us at Harochi.

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