We love what we do &
who we do it with.

We connect our clients to their audience with simple, effective marketing.

Our clients are businesses, just like yours, trying to be heard. In a crowded market, it helps to have your marketing team in your corner. And when it comes to winning teams, we not only have the star quarterback, the cheer squad AND the winning game plan, we’ve also clocked the mileage to get you where you need to be.

Our ideas aren’t cookie-cutter versions of each other. Rather, every solution is tailored to match your needs.

As you’ve probably guessed, we aren’t your typical marketing agency.

Darnelle O’Brien

We’re a team of straight talking, passionate marketers who are always happy to help.

Our Story

We are innovative thinkers, always bringing a fresh perspective.

This is an exciting time for The K.I.S.S Marketing Agency. The space in which we play, particularly the digital landscape, has experienced exceptional growth and change. And with this change we’ve emerged as leaders in our field.

Go the extra mile. It’s never crowded.

After studying Business (Marketing) and Arts (Economics) and working for over 10 years on both client and agency side, I recognised business owners and marketing managers eager to market their brands were overwhelmed by so many strategy options.

I realised a genuine need for small businesses in particular to “keep it simple”. Initially setting out to help small businesses, K.I.S.S grew and began servicing the larger end of town with the same key principle. Together with our team of superstars, I still strive to help clients stand out from the crowd with simple yet effective marketing solutions.

Our Journey


Our People

We’re a unique bunch of people who find genuine joy in our clients’ success.

Often aware of problems long before the client is, we keep our cool, no matter how big the job or how many projects we have rolling at the one time.

We’re easy and fun people to work with. We communicate in a way that is accurate and timely, honest and friendly, and we always take ownership of what we do.

We take pride in the quality of our work and support collaboration, not what role we play here.

Darnelle O’Brien

Director & Founder

Bachelor of Business (Marketing) & Bachelor of Arts (Economics) ACU National

Google Certified: Advertising Fundamentals, Advanced Search, Advanced Display, Google Analytics

With a warm personality and straight-talking attitude, Darnelle has more than 12 years’ experience generating demand and creating buzz for her clients. Darnelle recognises that the sheer number of marketing options available to business owners and marketing managers can be overwhelming in itself, so in 2013 she founded The K.I.S.S Marketing Agency, based on her business philosophy of ‘Keeping It Simple’.
Together with her team, Darnelle delivers simple and effective marketing solutions for businesses across Australia and internationally. One of Darnelle’s great passions is content. She writes delicious content for clients and shares her experience through the K.I.S.S weekly blog which has more than 9,000 followers globally.

Darnelle has been published across a wide number of online channels, including Social Media Today, Business 2 Community, NAB Magazine, NSW Chamber of Commerce and Savvy SME.

Brittney Stuart

Senior Account Manager

Diploma of Business Management (Marketing and Events), Macleay College.

Lorna Warren

Key Accounts Manager

Diploma of Marketing (Distinction),
St George TAFE

Certificate III Marketing,
St George TAFE

Kat Devlin

Account Manager

Bachelor of Communication, Public Relations and Creative Arts and Industries, Griffith University.

Google Certified: Advertising Fundamentals, Advanced Search, Advanced Display, Google Analytics

Mark Kaslack

Paid Ads Specialist

Master of Arts (Finance), HHL Leipzig Graduate School of Management.

Master of Business Admin, EADA Business School.

Google Certified: Fundamentals, Advanced Search, Advanced Display, Google Analytics and Google Tag Manager.

Jamie Walker


B. Design (Honours), UNSW.
Adv. Dip. Multimedia Design, Chisholm TAFE.

Sarah Samra


B. Design (Honours), UNSW.
Dip. Graphic Design Major Advertising, Martin College.

Harley O’Brien

Director of Happiness

Who we work with

We genuinely partner with our clients: we become your outsourced marketing department, part of your team, completely committed to your success.

Contact us today

Get in touch to start your next marketing project.