StackOptimise

Co-Founder

Birdie

Account Executive

Oxwash

Sales Manager

Senior Account Executive

Mallow & Marsh

Selling a premium FMCG product to cafes and convenience stores.

Opened over 30 accounts in 3 months during the hottest summer on record. Exceeded target by 100%.

Field Sales Intern

The Dealer App

Selling a discounter platform that allowed cafes, deli*s and restaurants to sell surplus food, minimising their waste and maximising revenue.

Closed 16 accounts, predominantly independent cafes. Delivered in-person platform demos to ensure a smooth onboard.

Conducted a multi-channel B29 campaign targeting University students, resulting in over 100 sign-ups.

Co-Founder @StackOptimise | Everything Sales-Tech ⭐️

Co-Founder @StackOptimise

A Premium Growth Partner for B2B Companies.  

We combine the latest AI tools & sales-tech with industry-leading copywriting to put your top-of-funnel on autopilot. 

1. Over 15+ years in B2B Sales. 
2. Awarded 2x expert certification in B2B sales-tech (1/6 Clay experts in the UK). 
3. Amassed a community of over 50k sales pro's across all platforms. 
4. Supported over 25+ B2B companies to generate a consistent stream of high-quality leads. 

If you're a B2B business with a total addressable market over 10k, let's have a chat: 

https://calendly.com/d/cqf2-9q8-qty/meeting-with-stackoptimise

Or if you're really serious, call me: 

+447800727673

Email: Penn@stackoptimise.com ✉️
IG: www.instagram.com/sellmethis_penn/ 📷
Newsletter: https://stackoptimise.substack.com/ 🚨
Website: https://stackoptimise.com

Penn Frank ⚙️

Most LinkedIn DMs go nowhere.

Ours booked 756 meetings this year alone, across all clients. 

Here are the 3 message styles that got prospects to actually say “yes.”

1️⃣ The Curious Insider Message
2️⃣ Future Framing
3️⃣ The Gut Check Voice Note

And that’s just a glimpse - these are pulled from our full library of 17 proven outreach templates we use every day to start real conversations.

Want the full list?

Like this post + comment “DM” below, and I’ll send it over. (Must be following to receive.)

11 Cold Emails That Booked Calls at Disney, Apple & Google (and more global brands)

Breaking into enterprise is a different ball game - and these 11 real-email examples show you exactly how we did it.

Inside you’ll find:
 • The full emails that secured meetings at massive companies
 • The exact prompts to replicate these emails for your own business
 • The gatekeeper-friendly trick that got messages forwarded to decision-makers

Want a copy? 

Like this post + comment “ENTERPRISE” below and I’ll send it over. (Must be following to receive.)

Year 2 building StackOptimise 🚀

Here’s what we shipped this year:

1️⃣ Launched the world’s first GTM Engineer course. 
2️⃣ Released the $1M Messages eBook. 
3️⃣ Launched our newsletter - 15k subs in 8 months.
4️⃣ Grew the team from 2 to 17.
5️⃣ Expanded our client base from 8 to 20+.
6️⃣ Rebuilt our website - monthly traffic up from 4k to 30k/month.
7️⃣ Became 3× certified experts in B2B sales-tech.
8️⃣ Expanded service line (LinkedIn outreach & RevOps). 

Year 1 was survival.
Year 2 was systems and scale.
Year 3 is where everything compounds.

Onwards.

Welcome to the team, Viktor. 

He’s only a few weeks in, but we knew straight away he was built for GTM Engineering.

We assigned him three clients on day one.

One of them launched a week after he started. Their target was 28 leads per month. He smashed that target in 3 days. 

Beyond the numbers, his technical depth is insane.

Custom landing pages and AI-generated videos personalised to each lead… fully bespoke GTME workflows that would take most people months to figure out.

This is exactly the level we’re building towards at StackOptimise. Elite operators who ship fast and seriously raise the bar.

If you’re an elite operator who wants to build at this pace, we’re still hiring - come join us: https://tally.so/r/m6a5rY

Cold email and LinkedIn DMs serve the same goal - but they work in slightly different ways.

We’ve run thousands of both everyday, and here’s what we’ve learned 👇

1️⃣ Copy
Cold emails need to sound professional and stripped down.
LinkedIn DMs work best when they sound like something you’d actually say.

2️⃣ Volume
Cold email = scale. 20–30/inbox/day.
LinkedIn = slower pace. Around 200 new connections/week/profile. 

3️⃣ Rules
Email success comes from relevance and proof - direct, simple, and credible.
LinkedIn success comes from consistency - showing up, commenting, and sharing useful content.

4️⃣ Follow-up
Email: 3-5 value-led touchpoints. No empty followups. 
LinkedIn: max 3 messages, spaced out, keep it social.

5️⃣ Tools & Testing
Email: test multiple versions - value, case study, pain question.
LinkedIn: test different DMs at scale, double down on what gets replies.

6️⃣ Results & Setup
Cold email: higher volume, lower reply rate, easy to scale.
LinkedIn: smaller volume, higher engagement, harder to scale.

Both channels work - but for different reasons.
Email is the engine.
LinkedIn is the accelerator.

The best outbound strategies use both — working together, not competing.

Learn how to leverage both at scale in 2025: https://lnkd.in/eN7qinfB

$250k ARR closed this week.

We’re scaling hard. We need more hands.

GTME applications @StackOptimise ⚙️: https://tally.so/r/m6a5rY

You’ll learn GTM Engineering at the highest level - plus a platform to build your brand and establish yourself as a recognised leader.

Felix and I only spotted the opportunity in outbound (AI-driven sales + GTM engineering) because we’d spent 15 years collectively in B2B sales. If we weren’t deep in that world, we wouldn’t have seen it. 

People talk about “eureka moments” like flashes of inspiration. Ideas that magically fall out of the sky. They don’t. As Zuckerberg says, this is a dangerous lie.

Your ideas are a product of your knowledge.
Your knowledge is a product of your experiences.
The deeper your experiences, the better your ideas. 

So don’t get emotionally attached to the first draft of a business idea - it’s just the starting point. Because early on, your business will likely change direction anyway (we've pivoted our model 3 times in 2 years). 

And the deeper you get into your domain, the more opportunities emerge. We’re now seeing entirely new ways to scale the business - ideas we simply couldn’t have accessed without being in the trenches long enough to earn that level of insight.

Don’t refrain from entrepreneurship because you question your initial idea - that idea is the stepping stone to unlocking great ideas. Get started.

How we generated $450k ARR for our agency in the last 3 months:

Cold email.

A 6-step cold email sequence.

Not 2 steps.
Not 3 steps.
Six.

Because when done properly, a longer sequence compounds your credibility.

This is the most powerful sequence I’ve ever created.

Here’s why it works:

1️⃣ We identify 22+ unique personalisation points per lead.
2️⃣ Every email builds on the last. There’s a cohesive narrative. 
3️⃣ Zero reminders. Every step adds new value.
4️⃣ The tone is so human it disarms people.
5️⃣ Lots of pattern disruptors. Copy that makes the reader pause and think: “Ok… this is different.”

When you stack all of that across six well-crafted touches, you create something rare: a sequence that starts conversations with people who normally ignore cold email.

The industry keeps preaching 2 - 3 steps.
But if each step compounds, you can scale it up. 

And if we can make it work pitching outbound service (the hardest, most saturated service to pitch via outbound), we can make it work for your business. 

If you want us to build this exact engine for you -
book a call and I’ll walk you through it step by step: https://lnkd.in/e3qxXKmr

Ok, I'm super biased. 

But I really believe this is the Age of the Outbound Agency.

Let me explain why 👇

1️⃣ Ramp time
SDRs take months to get going. You need to train people, test scripts, build lists, and wait for results. With an agency, you start seeing leads within weeks, sometimes days. 

2️⃣ Experience level
Most SDRs are entry-level. They learn on the job - which usually means learning with your accounts. Agencies are made up of specialists who’ve already run hundreds of campaigns. You skip the learning curve.

3️⃣ Tech stack
In-house teams often use old tools or limited software budgets. Agencies already have the full stack - data tools, enrichment layers, AI personalisation, automation - all integrated.

4️⃣ Data and optimisation
SDR teams often lack the volume or data to learn fast. Agencies run thousands of sends per day across clients, so they can spot patterns instantly and keep improving results.

5️⃣ Risk
Inexperienced SDRs are susceptible to bad practices that can destabilise performance, like burning your domain or TAM. Agencies protect deliverability with domain pools, warm-up systems, and smarter targeting logic.

6️⃣ Experimentation
A/B testing rarely happens consistently in-house. It’s slow, and SDRs don’t always have the time or know-how. Agencies live and breathe iteration. They test constantly - messaging, timing, CTAs - and double down on what works.

7️⃣ Cost
An SDR setup means salary, tools, management, and turnover. An agency gives you a whole team, stack, and strategy for a fraction of the cost.

Right now, agencies have the edge because outbound has become a technology game. The power lies in the tools, data, and automation - and agencies are the ones moving fastest to harness it ⚙️

Book in a call with StackOptimise and see how we can build a fully optimised outbound engine for your business: https://lnkd.in/eg3YnNdR

The StackOptimise mission statement: 

To find the fastest path to ROI in outbound, for B2B companies of all sizes. 

Our process is built around one goal: to scientifically find message-market fit as fast as possible.

Here's how we do it.

1. Create 10+ unique outreach messages  
2. Allocate 1–2k leads to each message. 
3. Scrap the low performers. 
3. Further testing on top performers (subject line, PS line etc). 
4. Merge the top-performing messages into a sequence. 
5. Granular testing on the full sequence (scheduling, length etc). 
6. Allocate 80% of volume to optimised sequence and keep 20% for innovation. 
7. Refresh messaging every 4 months. 

We treat outbound like a product. 

One that should evolve every month based on data, not instinct.

That’s how we find engineer message-market fit faster than anyone else.

Book in call with us to learn more: https://lnkd.in/e3qxXKmr

The 47 Laws of Outreach Copy 📕

Law 1️⃣ Never use the long em dash "—". 
Law 2️⃣ Keep paragraphs to 1-2 lines. 
Law 3️⃣ Emails can be long or short but always trim the fat. 

To access all remaining laws: 

📺 Video breakdown: https://lnkd.in/eN2BGNNr

📕 PDF File: https://lnkd.in/eKmMa8Cr

The most unhinged offer in outbound:

We build you an elite 4-month outbound engine with:

↳ Fully managed infrastructure
↳ AI-powered personalization
↳ Signal-based targeting
↳ Unlimited campaigns & volume
↳ Custom automations
↳ Dynamic lead magnets
↳ Full CRM integration

The guarantee: 50+ positive replies in Month 4 alone, or full refund.

That's it. Give us time to dial it in, then we deliver - or you pay nothing.

All we need? A big enough TAM.

Don't care about your offer, industry, or if you even have customers yet. 

If the market's there, we'll crack it.

Apply: https://tally.so/r/A777po

4 new eBooks released 📚📚

1️⃣ The Secret to Close Outbound Sales Opportunities 
↳ Turn warm replies into signed deals - consistently.

2️⃣ Inbox Engineering 
↳ The 2025 military-grade method to bypassing spam filters. 

3️⃣ 24 Business Learnings in 24 Months 
↳ Real lessons from rapidly scaling to $1.5M ARR. 

4️⃣ Making Cold Outreach Funny 
↳ How to utilise the most underutilised weapon in outbound.

Vol 30 🚀

Email sub here (15k+ subs in 8 months): https://lnkd.in/enBDWP5w

View newsletter: The StackOptimise Newsletter 

Go-To Newsletter for GTM Operators. Every week we share 1 template, 1 tutorial, 1 tool, 1 tip and 1 FREE Gift. This exists to be the most value-packed

Open article: Vol 30.  by Penn Frank ⚙️ • 2 min read

Roman Hipp

BetterContact

Co-Founder & Growth

Amazon

Business Development

charles

Business Analyst & Expansion

Moss | All-in-one spend management

Customer Success

BlackRock

Spring Week

Building BetterContact | Helping early-stage B2B SaaS companies with insights & ready-to-use templates

Currently building BetterContact, a B2B SaaS that aggregates various data sources to find and verify any email and mobile phone number.

Growth Co-Founder

Big news! On 4th Dec, we (BetterContact) will be co-hosting a GTM Christmas Party together with Clay in Berlin

Clay has been a great partner (we’re happy users ourselves), so we decided to together organize a GTM Christmas Party!

We’ll be discussing workflows, allbound, and a lot of other exciting topics - link to the event is in the comments.

Looking forward to meeting a lot of familiar (and new) faces in person!

P.S. thank you Nicolas and Taimoor for organizing this!

Building BetterContact | Helping B2B companies win outbound through more and better contact data

The last 3 months have been our strongest so far for BetterContact (+113.9% growth), and this time, we finally have a better understanding why:

1. The amount of times we get mentioned by happy customers has skyrocketed (⅔ new customers come through a referral)

2. We’re now far more deeply integrated into the Martech ecosystem (almost every major player in that space integrated our data in one way or another)

PS: there are some new big partnerships on the horizon

3. A lot happened on the data verification frontier, and people seem to especially love the improved accuracy on the phone side (as: more connects -> more conversations -> more revenue opps)

4. Significantly improved product performance due to a more robust infrastructure & error handling capabilities (100% uptimes in the last 60 days)

Our biggest challenge remains pushing churn below the 10% mark (it’s edging that for a while now).

While it won’t be an easy one, we put a lot of work into our Q4 roadmap, so we’re confident to get there EOY!

In October, BetterContact reached sub-10% customer churn for the first time, after battling with >25% churn waves. While still not optimal, it’s one of my proudest moments since we launched 26 months ago.

The difficulty of this astronomically high churn was that we’d win a new customer, only to watch an existing one leave.

So we *needed* to make it our #1 priority - here’s what we did:

1. PARTNERSHIPS & INTEGRATIONS

Over the last months, we partnered with tons of great companies:

- Outreach tools (Instantly, Smartlead, Saleshandy, Lemlist, Reply, et al.)
- CRMs (Hubspot, Breakcold)
- No-code tools (Clay, Zapier, Make)
…and many more

As many already use these tools, a seamless integration with them allows for using our product more easily. 

And as we’re going where the user already is, it decreases friction & churn.

(there are many more exciting partnerships in the pipeline!)

2. STRONGER PRODUCT

We didn’t only add 10+ new data providers, but also invested a lot in:

- Mobile phone verification, including geo-/name matching & activity scoring
- BetterAI, our algorithm to find the best provider sequence based on lead characteristics
- Stronger infrastructure & error handling capabilities, leading to better uptimes & enrichment times 
- Country-specific improvements to deliver better data to specific markets

We’ve seen a lot of users that rigidly compared our data with other solutions, and became customers after.

3. CO-MARKETING & EVENTS

Partnering & doing cool stuff together with brands our users already love drives a lot of brand advocacy - also, I’ve met a lot of great people in the space through that.

I can’t wait for our first ‘real-world’ get together at the Clay x BetterContact GTM Christmas Party in Berlin on 4th December! 

Our next big goal is approaching 5% churn - tough challenge in this market, but there’s a few things around the corner that make us confident to get there soon!

Last month, I spoke to an European agency owner who just hired 3 cold callers but is having trouble scaling cold calling with traditional data vendors (or ‘their existing setup with Zoominfo/Apollo’). Here’s what their problem is:

1. They use a mix of Apollo and ZoomInfo. Their connect rates are <7%. As they pay their cold callers a decent hourly base wage, the time it takes them to dial the 90% non-connecting numbers leads to significant fixed costs + low productivity.

2. Their cost on data is exploding. They average $0,3/enriched number - which is not bad. However, their cost/connect is at +$3 (due to unusable numbers). This discrepancy & the resulting ‘hidden costs’ are driving them nuts.

3. As Apollo/ZI are US providers, they often get +1 (US) numbers for their European leads, which they can’t call due to high fees (and it's not the right person anyways). This adds another layer of costs for unusable data.

Here’s how we helped them solve it:

1. We do proper activity scoring, which analyzes if the number has been recently active and picked up calls. If not, we don’t push it back and treat it as invalid.

2. As they’re an outbound agency, we put them on an agency plan, so 30% discounted ($0,28/verified number). This allows for good margins, as providers such as Lusha ($0,9/number) or Kaspr ($0,5) are not feasible at scale.

3. We conduct line type & geography checks, making sure that the number’s country code actually matches where the lead is localized.

They have just been with us for a months already & here are some stats they shared:

1. Connect rates average 19%. Their callers are now able to do more than double the conversations they were able to do before. This does not only lead to more booked demos, but just happier callers in general.

2. As they are on agency pricing, they average $0,28/enriched number. Considering their connect rates, their cost/connect decreased by ~60%.

3. Their non-EU dials (+1 etc.) for their European-only leads were driven to near 0 (we’re working on eliminating that completely).

What is your cold calling stack?

🎄Only 14 more days to go until the Clay x BetterContact GTM Christmas Party in Berlin, can't wait to see you there!

View event: Clay x BetterContact GTM Christmas Party (Berlin)

Clay x BetterContact GTM Christmas Party (Berlin)

Even after 1000’s of Google meets & scaling BetterContact to a 7-figure ARR business, I never *really* talked to someone in ‘real life’ about what we do & the sales tech space in general 

Last week, however, I met one of our earliest customer quite randomly, which was one of the coolest experiences of that journey so far.

10x more personal than talking to someone on a Google Meet, and just… better.

That’s why I’m even more excited that in December, there will be an opportunity for many more of these ‘real life’ conversations.

Because on the 4th, we’re co-hosting a Christmas Party in Berlin together with Clay.

Very excited for this one as it’s the first SaaS event that I’m attending (and at the same time, the first one that we’re co-organizing).
 
Hoping to see as many familiar & new faces as possible (I'll put the link to the event in the description)!

🎄Only 8 more days to go until the Clay x BetterContact GTM Christmas Party in Berlin, can't wait to see you there! (link to sign up below)

The reason why most outbound campaigns fail is that they are built in the Red Ocean: targeting the exact same leads everyone else does. The Blue Ocean is where teams win these days.

Here’s why: legacy providers like Apollo, Zoominfo & Lusha only cover 30–60% of your TAM.

(i.e. you'll only get 30-60% valid emails & mobile numbers)

Means what?

Literally everyone else, including your competitors, gets the access to the same 30-60% of your TAM. So you end up competing with EVERYONE for the attention of the exact same leads.

Meanwhile, there's the Blue Ocean.

In outbound, 'Blue Ocean' doesn't have to mean a new, bigger market.

It can simply mean covering 20-30% more of your existing TAM, and going after the 'untouched' leads almost no competitors can find.

It’s the same market you already target, just the part no one else can reach.

At BetterContact, by working with 20+ data providers, we've built the tech to find, score, and verify contact data others miss (25–30% 'untouched leads').

This gives you bigger TAM coverage, higher connect rates and better results... Without ever diluting your ICP (the greatest sin of outbound).

Outbound isn’t broken. You're just fishing where everyone else is fishing too.

You can…

🩸 Keep fighting for 'leftovers' in the Red Ocean
💧 Or swim in the Blue Ocean, where others can’t

The 'outbound death zone' is probably the reason why most companies doing cold outreach shine at first, but fail miserably after & say 'outbound is dead' 

To better explain what I mean, here’s a real breakdown of the figures for a unicorn company that came dangerously close to getting stuck there:

𝐏𝐑𝐎𝐁𝐋𝐄𝐌

They used a mix of Apollo & ZoomInfo to break into the European market. High ACV, small TAM.

Their list building/lead sourcing process is rock solid and is based on 1st party intent data.

However, using Apollo and ZoomInfo, they found less than half of valid mobile numbers of these prospects for their sales teams.

This pretty quickly placed them in the middle of the ‘outbound death zone’ process: ICP dilution

As they did not have enough dials for their sales team anymore, and in order to hit quota, they were forced to also prospect leads which were not exactly matching what they initially agreed on as ICP.

Here are their numbers for a recent micro cold calling campaign they did:

Total dials: 1400
Conversations: 217
-> connect rate: 15.5%

Meetings scheduled: 17
Closed Won/Lost: (no data yet)

The problem is that the initial list that they built had around 3.000 leads.

So they were not even able to reach half of their list.  

𝐒𝐎𝐋𝐔𝐓𝐈𝐎𝐍

So here’s how we helped them to solve it:

The big goal was TAM maximization.

We ran the 1.600 non-reachable through BetterContact, and found additional 750 verified mobile numbers, so 25% extra to their previous enrichments with Apollo and ZI (totals to 72% found) .

Extra dials: 750
Conversations: 174
-> connect rate: 23.2% 

Meetings scheduled: 15 
Closed Won/Lost: (no data yet)

𝐑𝐄𝐒𝐔𝐋𝐓𝐒

Just by using BC, they had an additional 174 actual conversations with their ICP, and 15 additional meetings booked.

Looking at their high-five figure ACV, we’re looking at an additional ~$750k in high-quality pipeline.

Considering previous campaigns they ran, and their meeting-to-closed won ratio, they will most likely hit their target for this micro campaign. All because they squeezed out that 25% extra reachable ICP coverage.

I was convinced we’d already tested every good contact data provider - but last week, one of our top customers challenged us to test one  we didn't know yet for the BetterContact waterfall

After testing their data thoroughly, the provider was able to add 0,4% valid numbers to our mobile phone finder waterfall.

Considering we already have 20+ providers in the mix, it was quite a pleasant surprise!

(good reminder to listen to your customers!)

So apparently, hidden gems still exist… and now we want more, to help us squeeze out every last % of valid data.

That's why we're putting out a bounty of $1k for everyone that points us to a data provider that adds to our current valid output by at least 0.5%, and which we will ultimately make part of our waterfall - please reach out! 👇

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