Vision:
A world where everyone, everywhere can communicate and be heard.
Mission:
We connect and partner with low-resource communities to provide AAC tools, training, and assistive technologies to make communication accessible for all.
Bridge Assistive is an Australian charitable company that aims to increase Augmentative and Alternative Communication (AAC) capacity and access in countries with limited access to AAC. AAC can be defined as a set of tools and strategies that can be used by individuals with communication support needs to overcome barriers in everyday communication.
Bridge Assistive tries to increase AAC capacity by undertaking sustainable projects that include:


Director
Epidemiologist

Director
Speech Pathologist

Director
Founder Link Assistive

Board member
Speech Pathologist
Tanja Effing has been trained as a movement scientist, physiotherapist, and epidemiologist and has more than 20 years of experience in the field of clinical trials, mostly respiratory and self-management orientated. She has performed multiple systematic reviews and randomised controlled trials, has organized several post-graduate courses, contributed to statement and workshop reports, and has been part of several national and international respiratory expert panels. Tanja is using her skills and knowledge to develop and evaluate sustainable AAC projects to increase AAC capacity and access and to contribute to the body of evidence regarding AAC in countries with limited access to AAC.
Amy Litton is a speech pathologist based in Western Australia who has worked in the disability sector throughout her career. She has worked in government, private and non-for-profit organisations providing direct speech therapy services to clients, supervision and mentoring to therapists and managing teams and projects. Amy loves to travel and has spent time volunteering as a speech pathologist in rural India. She also volunteers as a committee member for the annual Variety Motor Mouth Camp for children who use communication devices. Amy runs her own small private practice with a special interest in the area of AAC. Amy looks forward to sharing her skills and knowledge through her work with Bridge Assistive.
Bas Tijdhof is the founder of Link Assistive (est. in 2008) and is one of the directors of Bridge Assistive. He has gained extensive experience regarding assistive communication (AAC) across a number of roles in the Assistive Technology industry. This includes nine years as an Assistive Technology Consultant in the Netherlands - providing everything from assessment to implementation of communication and computer access solutions for children and adults with disabilities. Bas worked as an Account Manager for Tobii AB – the world leader in eye tracking technology. Seeing first-hand the immense impact the right technology can make in people’s lives, he continued on this path and is still as inspired now as he was back then. ‘I have met so many amazing individuals along the way, having had the chance to play a small role in making a difference in their lives is something I am very grateful for and has taught me a lot’. Bas is looking forward to using his experience to continue raising awareness for AAC and to look across country borders to assist those in need of AAC through our not-for-profit Bridge Assistive.
Charlene Cullen is a speech pathologist based in Victoria who has worked in the disability sector throughout her career. She has worked in a variety of roles as an early intervention therapist and resource therapist to rural and remote areas in Western Australia. She has worked in supervisory and coordinator roles to support and mentor other speech pathologists and manage large therapy teams for both child and adult services. She has been involved in running and participating in AAC camps for school aged children who use communication devices in Queensland, Western Australia and Victoria. Charlene currently works full time for Tobii Dynavox Australia as clinical team leader and providing education, consultation and support for assistive technology within Victoria. She is passionate about the area of augmentative and alternative communication (AAC). She looks forward to sharing her skills and knowledge through her work with Bridge Assistive.
In general: Bridge Assistive is an Australian charitable company focused on enhancing AAC (Augmentative and Alternative Communication) capacity in countries with limited access to these resources. Bridge Assistive does not sell devices or services in these countries. For those looking to buy communication devices, we refer them directly to the manufacturers' websites for guidance on where to purchase. One of our board members (Charlene) has a direct affiliation with Tobii Dynavox Australia - an Assistive Communication company owned by Dynavox AB.
Tanja Effing is affiliated with Flinders University and the University of Adelaide. She is spouse of Bas Tijdhof, the founder of Link Assistive. She will always declare any conflicts of interest to external bodies.
Amy Litton is a speech pathologist who runs her own private practice with a special interest in the area of AAC. She will always declare any conflicts of interest to external bodies.
Bas Tijdhof is the founder of Link Assistive (rebranded to Tobii Dynavox Australia in September 2026). He ended his role as CEO of this company on 1 October 2026. He will always declare his relationship with Link Assistive and any conflicts of interest to external bodies.
Charlene Cullen works full time with Tobii Dynavox Australia as an AT Consultant and Clinical Team Manager. Charlene is a speech pathologist. Charlene does not profit from Tobii Dynavox, and is employed on a salary to support individuals and therapists to access communication and assistive technologies. She will always declare her relationship with Tobii Dynavox and any conflicts of interest to external bodies.
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