Cornerstone was founded by Kayleigh Kahlefeldt with one clear mission: to build powerful, exciting brands that cut through the noise and connect. After a career spanning international PR, global creative agencies, and corporate marketing leadership, Kayleigh saw a common thread: the most magnetic brands weren’t the loudest or the biggest. They were the ones with a clear sense of self and something meaningful to say.
At Cornerstone, we exist to help brands uncover their essence - who they are, what they stand for, and how to express it in a way that’s bold, brilliant, and impossible to ignore. We don’t just produce creative content; we craft brand identities that feed and grow highly engaging marketing strategies. Because when you build a brand on a rock-solid foundation, everything else falls into place - and takes off.
Kristie Jenkins Travel Managers
John Argiro CEO/Founder Argiro Credit Platform
We work with in-house marketing teams and with marketing agencies. In engaging us you can expect to receive unique ideas from highly experienced people, strategic programs that fit your goals, and creative content to help you achieve them.
We love creating content for all things tech. We are research heavy so that we can talk your language no matter how complex (and help you talk your audience's language).
“Kayleigh's passion and experience as a marketer makes her an exceptional team asset. She is also a content marketing expert and creative problem solver. I loved working with Kayleigh as she is such an inspirational leader.”
“Kayleigh has been a delightful client to work for during her time at DocuSign. She has a unique set of skills - bringing creative thinking, commercial strategy and a collaborative spirit to the table, a rare and hugely valuable combination!“
“Kayleigh puts her clients first on every occasion and has a fantastic attention to detail.”
“Whether through the media, customer stories, blog thought-leadership or promotion of our regional environmental and diversity programmes, Kayleigh has approached the task of maximising our regional influence with professionalism, enthusiasm and conviction. She has consistently gone above and beyond to produce the highest quality of content.”
“Kayleigh is professional, pro-active and importantly creative. She has vast PR knowledge and many years of experience. This coupled with the good understanding of the IT industry results in her bringing alternative ideas to the table and implementing them with outstanding results.”
“When it comes to Marketing & Communications Marilyn is the ultimate quintessential professional. She is a very thorough individual with high integrity, excellent organisational and communications skills. Apart from her M&Cs exceptional skills we have found she is a solid Project Manager.”