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About Linkai Digital

Two careers building growth systems for big companies. Now we build them for yours.

Linkai Digital is a Sydney-based team that builds the marketing, automation and AI systems service businesses need to stop losing enquiries and start growing. Founded by Katrina Curll and Sara Lemos, with more than 40 years of combined experience, across Forrester and global brands including IBM.

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Sydney based · Working Australia-wide · Australian owned & operated

Katrina Curll, Co-Founder of Linkai Digital
Sara Lemos, Co-Founder of Linkai Digital

Who is Linkai Digital?

Linkai Digital is an Australian marketing, automation and AI company for service businesses: clinics, trades, allied health and professional services. We build the systems that answer every call, follow up every enquiry, bring past clients back and measure what’s actually working. Co-founders Katrina Curll (ex-Forrester Vice President, 20+ years in marketing strategy) and Sara Lemos (20+ years in digital media and AI search) run every engagement personally.

Why we exist

The problem we kept seeing

Across every business we looked at, the same money was leaking out the same way. Enquiries that never got a follow-up. Clients who quietly drifted off. Admin eating hours that should have been billable. Marketing no one could measure.

Different industries, identical problem. It isn’t a lead problem. It’s a system problem.

Big companies fixed this years ago with software and headcount most businesses can’t justify. AI and automation change that maths. Now a two-person clinic can answer every call, follow up every lead and stay in touch with every client, without hiring a department to do it.

That’s what we build.

How we work

What you can hold us to

  • Business first, tools second. We’re not a tech shop that discovered business. We’ve spent our careers on what grows an operation, and we start there. The tool comes last.
  • You’ll understand what we build. No black boxes. You see how every system works and why, so you’re never dependent on us to keep the lights on.
  • We prove it on one thing first. Before anything scales across your business, we show it working on one real part of it. You see results before you commit further.
  • Honest broker. Where we’d earn a commission on a tool we recommend, we tell you. Every recommendation stands on merit.

Want to see what this looks like for your business?

Book a strategy session

One conversation, no obligation.

Who you’ll work with

Meet the founders

No account managers, no handoffs. The people on this page are the people who do the work.

Katrina Curll, Co-Founder of Linkai Digital, Sydney

Katrina Curll · Co-Founder, Strategy & Systems

Katrina spent more than 20 years in marketing, including seven as a Vice President at global research and advisory firm Forrester, advising some of the world’s largest companies on growth. She pairs senior strategy with commercial discipline: an Economics degree from the University of Sydney and a Master of Business (Marketing) from UTS. She co-founded Linkai to put that level of thinking within reach of the businesses that need it most.

Read Katrina’s full bio
Sara Lemos, Co-Founder of Linkai Digital, Sydney

Sara Lemos · Co-Founder, Digital Strategy & Delivery

Sara brings more than 20 years in digital marketing and media across Australia and Asia-Pacific, from strategy and operations to hands-on delivery, with deep expertise in AI search and using AI to change how marketing runs. At Linkai she connects brand, content and performance with the operational backbone that keeps it all running.

Read Sara’s full bio
What people say

What leaders who’ve worked with us say

These are LinkedIn recommendations from executives and clients Katrina and Sara worked with across their careers. Linkai client reviews will join them as they come in.

A strategic marketer who makes global execution look easy. She has really made a difference to our lead-gen numbers in the APAC region.
Lauren St. Amand EVP, Head of Marketing
Katrina has an immense knowledge of the value of automation and was a critical part of the team.
Mark Davies Enterprise Consulting & Sales Leadership · Fuji Xerox
Sara's digital expertise unlocked new revenue streams. She implemented workflows that delivered efficiencies and data-driven strategies driving customer success across APAC.
Talia Jackson Brand Strategist & Multi-Channel Campaign Leader
I have worked with Sara across two different companies and would highly recommend her to anyone looking for digital marketing expertise.
Ferdinand Gutierrez Building & scaling AI-first businesses
Read all 12 recommendations
Katrina is a true marketing professional. Coupled with a strong understanding of digital marketing and e-channels, she has delivered some really impressive work, a natural asset to any business that wants to drive customer acquisition. She is a find!
Nick M. Global Tech CEO & SaaS Founder
No task is too big for Kat. She has excelled at creating strategies across IBM's growth markets and managed end-to-end digital and mobile campaigns. A dedicated professional with a good eye for detail, an asset to any company.
Rod Molina Client Lead / Group Account Director · IBM
Katrina is an energetic, vibrant and incredibly hard worker. She quickly became an integral member of a global team and provided a strong connection point between geo strategy and worldwide strategy, thoughtful and strategic in her approach.
Aaron Wileman Global Business & Marketing Strategy Consultant
It's not easy to walk into an established team with diverse and often conflicting views on the role marketing should play in growing the business. In the midst of extensive change and competitive pressure, Kat has done this with ease. Her positivity and work ethic, underpinned by deep experience and a ready-made network, have made her a pleasure to work with.
Chris O'Connor AI adoption advisor to enterprise leaders
One of the most reliable people I have ever had the privilege of working with. During our time together Katrina tackled, and conquered, some very demanding projects. She works well both in a team and individually, I'd highly recommend her.
Bradley Larkham Marketing Leader
Sara's deep expertise in digital media, marketing and advertising strategies made her the perfect person to lead the project. She always takes a customer-centric point of view, communicates calmly and professionally, and our collaboration led to a very successful outcome. I'd recommend Sara and her team to any company looking to expand its digital presence.
Papoj Thamjaroenporn Senior Data & AI Scientist / Project Manager
A great leader and team manager, with good knowledge of local and regional media landscapes. Her experience spans multiple media and digital channels, which has allowed her to plan, deliver and execute successful campaigns and projects. I'd have no hesitation working with Sara again.
Zaber Ali Digital Media & Performance Leader
Smart, conscientious, hard-working and great at building relationships. Sara effortlessly slotted into the team and started producing outstanding work for our client almost immediately, a real 'can-do' attitude.
Richard Kelly Marketing Leader

Where does Linkai Digital work?

We’re based in Greater Sydney and work with service businesses across Australia, remotely and in person. Australian English, Australian compliance, Australian market. We understand AHPRA advertising rules for clinics, and we build for how Australian customers actually buy.

Questions we get asked

We build revenue and operational systems: missed-call text-back, AI voice agents, booking and reminder automation, review and reputation systems, client reactivation, and the marketing strategy that ties it together. See all services

Australian service businesses: medical and dental practices, allied health, vets, aged care and NDIS providers, trades, and professional services firms. See all industries

No. We explain everything in plain English, and you’ll understand what runs your business.

A strategy session. We look at where enquiries, follow-ups or hours are going missing, and tell you what we’d fix first. If we’re not the right fit, we’ll say so.

Let’s look at what’s costing you most

One conversation. We’ll tell you what we’d fix first and what it’s likely worth. If we’re not the right fit, we’ll tell you that too.

Book a strategy session

Sydney based · Australia-wide · Australian owned & operated · ABN 95 528 704 451