growth engines for B2B SaaS & HealthTech

Senior-level growth strategy for Seed–Series B teams, minus the full-time exec price tag. Serious results, less serious energy.

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what we do

three pillars.
one growth system.

01

go-to-market

Find your people, say the right thing, launch with a plan. ICP, positioning, messaging and playbooks built to make pipeline that lasts.

02

fractional growth lead

A senior Head of Growth on your team, flexible and high-impact. I own the funnel, then scale back when you're ready to hire in-house.

03

martech audits

We look under the hood of your CRM, automation and attribution, cut the noise, and hand you an AI-augmented roadmap that actually gets used.

why comtailer?

we know growth

Growth isn't a department. It's how you operate. Every engagement starts with a sharp commercial diagnosis and ends with a system that keeps compounding on its own.

results we've carved

the receipts

25%YoY adoption growth at Unite Us
$2M+expansion revenue at Splash
20%churn reduction through smarter lifecycle
$10M→$40Mrevenue scaled at HFMA

brands i've worked with

Swishvo
Unite Us
Splash
Google
Meta
ABB

case study

how i made $1M in 30 days
with $0 in software.

A no-budget advocacy program at Splash turned into a $1M expansion in its first month. Here's the playbook.

Read the case study

the human behind it

senior brain.
human-first.

Hi, I'm John, founder of Comtailer, based in North Carolina. I've built growth engines for B2B SaaS, HealthTech and enterprise clients. Right now I'm Swishvo's fractional CMO, running growth there. I also work with, and am well connected to, a lot of venture capital firms and their portfolio companies. I'm direct, systems-minded, and I like founders who'd rather ship than sit in meetings.

work with me

ready to build
your growth engine?

I take on a small number of clients at a time. If you're Seed to Series B and need fractional growth leadership, book a discovery call and we'll see if we're a fit.

Book a discovery call

case study · advocacy · expansion · revenue

stop asking
for referrals.

How I generated $1M in 30 days. The counterintuitive system behind a $1M expansion, and why most advocacy programs fail.

$1M+new revenue in the first month of launch
$0software budget, no affiliate platform needed
90 daysproof window with 30/60/90 check-ins

01 · the problem

a mandate with no map, and no budget.

When I joined Splash as Head of Customer Marketing and Community, I was handed a challenge: build an advocacy platform in 90 days. No software budget. Existing tools only. Prove it works with check-ins at 30 and 60 days.

Splash was at $35M ARR at the time. Not a scrappy startup, but a real org with real complexity. The constraint wasn't size. It was assumptions about what it takes to measure advocacy.

Most teams hear that and go hunting for affiliate software. I went in a different direction.

02 · first, visibility

build attribution before you build anything else.

No attribution means no program. You're just doing relationship management with no proof of ROI. I built a free tracking system using UTM parameters and Google Analytics. Every advocate got a unique link. Every lead carried source attribution. Every conversion traced back to a person.

utm_source=advocacy | utm_medium=partner | utm_campaign=advocate_name

No engineering lift. No new software. Just a disciplined naming convention.

03 · second, the right accounts

not just big accounts. accounts with leverage.

I started sitting in on standups with sales and CS. We didn't just map key accounts. We mapped key accounts where we had leverage: places where I could personally insert myself and deliver value before asking for anything. That changed the nature of every conversation that followed.

04 · third, rethinking incentives

stop giving them swag. ask what's actually invaluable.

I was approved to offer $500 to $1K cash referral rewards. It felt solid. Then I called peers at Qualtrics, Chili Piper, and Gong and asked for their real playbooks. The single most important thing I heard:

“Stop giving them swag and money. Ask them what’s truly invaluable.”

The answer wasn't cash. Advocates wanted 30 minutes with someone on our team who could validate their ideas and save them weeks of trial and error. We shifted our incentive model overnight.

05 · the breakthrough

the hidden use case that unlocked $1M.

I rolled the program out inside our Circle community. A member at Facebook engaged immediately. We shared our whole playbook, asked real questions about how they used the platform, and, critically, who else inside their organization was using it.

Facebook used Splash for one department. But they were quietly doing event work as a service for another team: HR and recruitment events. They were already doing the work. They just hadn't connected the dots to an expansion.

We helped them connect those dots. The result: a $1M expansion contract, approved within 30 days because it landed at end of quarter with available budget.

the lesson

advocacy isn't about asking.
it's about understanding.

Customer marketing isn't about persuading customers to advocate for you. It's about understanding their world deeply enough that the next logical step becomes obvious to both of you. The referral was almost a byproduct.

This playbook worked at $35M ARR with enterprise accounts. The same principles (attribution discipline, leverage mapping, and value-first incentives) apply whether you're at $1M or $100M. The methodology scales. The assumptions don't have to.

want to build this kind of system?

let's talk growth.

I work with a focused number of clients at any given time. Fractional growth leadership for B2B SaaS & HealthTech.

Book a discovery call