At Opsize, we specialise

in taking your Startup
to the Next Level
ABOUT US

The Opsize Story..

Hi! I'm Kev.

Ever wondered how a humble burger joint becomes a global behemoth like McDonald's?

Throughout my career, I’ve been fascinated by that very question.

And after years in the entrepreneurial kitchen—7 businesses later and 250+ founders coached—I can tell you, the secret ingredients are simple:
🍔 ambitious goals,
🍔 an unrelenting will to succeed, and 
🍔‍ finely-tuned systems
to get you there.

I left the Investment Banking world over a decade ago, stepping into the vibrant (and at times gruelling) world of tech startups.

It’s been a tough but sweet ride—and I’ve tripped and fallen more times than I care to count.

But every stumble was a lesson, a flavour note, in the art of running a business.

Because just like crafting the perfect recipe, you learn more from your entrepreneurial missteps than your wins.

And every misstep gets you one step closer to success.

After two decades building, scaling and coaching startups, I’ve been lucky to have a few wins.

From bootstrapping businesses from scratch to raising tens of millions in venture capital, to scaling startups from Sydney to San Francisco and beyond—I've had my fair share of entrepreneurial servings.

I love sharing those learnings with founders.

I’ve personally advised and mentored over 250 of them—and I’m passionate about helping them avoid the common pitfalls, and instead, find the fastest path to traction.

But there’s one thing that’s always bugged me..

In a world full of startup support—from dev shops to design agencies—there’s one key dish that’s often missing: seasoned, real-world startup guidance.

Someone who’s been in the kitchen, felt the heat, and knows the secret sauce that fuels real growth.

That’s why I cooked up Opsize.

Opsize delivers sharp, structured startup coaching for early-stage founders who want to move fast, build well, and grow smart.

From clarifying your goals (Starters), crafting your go-to-market strategy (Mains), to scaling your systems and team (Desserts)—I help you focus, prioritise, and execute from startup to scaleup.

It’s practical. It's personal. And it’s built to drive momentum.

So… if you’re bobbing along in the business world,
yearning to take your startup to the next level—

DM Me and let’s chat.

Kev


K. Jochelson

Ready To Get Cooking?

Well you should be.

It's suprisingly affordable and we believe in providing exponential more value than we cost.

PLUS, your first call is on us.

Don't be a stranger. Get in touch.

Send me the word "HUNGRY" in Instagram and we'll make it happen:

REVIEWS WORTHY OF A CHEF'S HAT
“Kev built an entire dashboard of my goals, challenges and strategies to tackle every aspect of my business. Importantly Kev calls it how it is. He explains the "why" to validate the logic. It's about not over complicating things, but keeping it simple and smart. Kev gives the motivation, clear direction to keep you focused on what matters.”

Leesa Snider

Founder of JUST ADD MLK
“Kevin will help you to concisely evaluate your business, your goals and your capabilities and then create a way to get you there. The level of detail, the length of sessions and the focus on my business is honestly exactly what I was hoping for.

Harmony Tera

Founder of swapp
“In a world full of fake gurus, Kev brings a level of authenticity and realness to the table that is uncommon. I've built multiple businesses and I still find great clarity and value in having Kev on my team as a coach and advisor.”

Oscar (Oz) Omegna

FOUNDER OF VoltaRocks
We loved the mentoring material along with the guidance we received. Setting up our deliverables and the advice was excellent. If you're looking to create a startup in 2025 and don't know how to get started, get in touch with Kev. OPSIZE helped Payflo launch and gave us the headstart we needed.”

Chris Gardner

Co-Founder of Payflo
“Kevin has helped us refine our launch strategy helping us think big rather than small. He's helped us move and invest with confidence, avoiding rookie mistakes. In three words? Tailored, casual, insghtful.

Davey Tran

Co-Founder of PlaybackReview
“I would recommend Opsize to anyone serious about starting a business or wanting to become better as a Founder. Without coaching, it could take years to work it out yourself. Working with Kev mitigates the risk of common startup mistakes and gives you the best chance at success.

Danni Marple

FOUNDER OF bythefoundeR
Real. Authentic. Experienced. Opsize are the best I have ever seen when it comes to coaching our executive team and scaling our operations.”
Profile picture of a man wearing a suit, Glynn Willaims

Glynn C. Williams

Founder, managing director | emphasys
Geniunely one of the most impactful mentors I've met on my founder journey. Kev is so full of practical advice you'll wonder why you wasted hours trying to teach yourself what he could teach you in 5 minutes!”
A face portrait of a brown-haired caucasian female Jordan Franklin

Jordan Franklin

FOUNDER & WEB3 Educator
“If you are fortunate enough to have Kev on your team, you can be that much more confident of your success. I'd be remiss not to recommend him for any fast-paced, problem-solving, elite business team.
A portrait of a smiling man wearing a suit named Vinko Grgic

Vinko Grgić

investor, OPs & Product Leader
“Opsize provided me with the necessary tools advice and mindset to empower me to launch Linkspector. Every session was valuable and every question I had was answered with expertise, knowledge and real-world examples.

Ben Ashlin

FOUNDER OF LINKSPECTOR
A left navagation arrow icon
A right navagation arrow icon
we are OPSIZE
we are OPSIZE
Opsize supersizes success for hungry startups and ambitious Aussie founders.

Beyond Kev, our Head Coach, we regularly access a crew of seasoned entrepreneurs that bring decades of operational expertise to the table.

No empty calories or false promises here.

We lead, we implement, and we upsize you and your venture, so you can take your startup to the next level.
POWERFUL PAIRINGS
Some of the organisations and programs we’re involved with:
Blackbird GIANTS
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
Startmate
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
TechStars
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
University of Sydney
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
Capehetz
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
Acema
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
Revax
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
Marshall
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
USYD
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
LaunchVic
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
UTS Sydney
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
Worthwhile Ventures
A floaiting futuristic burger milkshake combo in fluoroscent purples, blues and greens in Opsize Cyberpunk Vapourware Style.
let's make something great

Wanna Upsize Your Business?

Get Coaching

Wanna Take Away Some Golden Nuggets?

Check out our instagram