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Our People

Spread across over 60 cities, our team is a global collective of urban experts in design, architecture, engineering, civil, transportation, urban geography, real estate, landscape, communications, software development and so much more. These are the people defining the cities of tomorrow.

Supporting our global team of 3,500 difference makers is IBI’s Leadership team, setting out a compelling vision and guiding IBI Group towards the future.

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Bruce W Retzsch

Associate Director-Principal | Architecture
Boca Raton, FL

Bruce W Retzsch
#Associate Director-Principal | Architecture# #All# #Architecture# #Commercial# #Industrial# #Infill Development# #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Leader# #Manufacturing# #Industrial# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mid Rise Residential# #Residential# ## #Mixed Use# #Commercial# ## #Planning & Urban Design# #Placemaking# ##
Boca Raton, Florida, United States of America
https://www.linkedin.com/in/bruce-retzsch-1917166/
Bruce Retzsch established the firm of RLC Architects in Boca Raton, Florida, serving as its managing principal and principal urban designer for more than 30 years until being acquired by IBI Group in 2022. The firm is recognized for superior architectural design and planning services in the multi-family, mixed-use, retail, office and distribution/logistics markets in South Florida, and is the recipient of numerous AIA design awards. Mr. Retzsch is an active member of AIA, serving as the 2022 Palm Beach AIA president and recipient of the component’s 2018 Gold Medal. He is also involved in many industry organizations, including ULI, NAIOP and CIASF, and volunteer activities with the City of Boca Raton, Boca Raton Community Church, and the National MS Society. A graduate of the University of Illinois, Bruce holds a Bachelor of Science in Architectural Studies and a Master of Architecture in Urban Design.
#North America# #Southeast#
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Mike Corby

Deputy Regional Director, Canada East
Markham, ON

Mike Corby
#Deputy Regional Director, Canada East# #All# #Bus Rapid Transit# #Transportation# #BRT# ## #Engineering# #Leader# #Light Rail Transit# #Transportation# #LRT# ## #Mobility+# #Transportation# ## #Office Lead# #Operations# #P3# #Project / Programme Management# #Regional / Sectoral# #Senior Management# ## #Systems# #Traffic Engineering# #Transportation# #Traffic Management# ## #Transit Management# #Transportation# ## #Transit Technology# #Transportation# #ITS# #Intelligent Transportation Systems# ## #Transportation# #Transportation Engineering# #Transportation# ##
Markham, Ontario, Canada
Mike Corby P.Eng is a Transportation Engineer specializing in traffic operations for 20 years. His experience includes the development of transportation practices and policies, design and operation of traffic control devices, as well as the procurement and implementation of traffic signal control systems and transit management systems. Mike is also highly regarded as a technical expert in the ITS field, specifically in the areas of traffic signal systems and equipment, adapting to the greater emphasis on surface urban transit systems. He works collaboratively with IBI offices across North America, and has been a key contributor to Rapid Transit AFP/P3 projects and procurement.
#North America#
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Gregg Stouder

Associate | Manager, Architecture
Southfield, MI

Gregg Stouder
#Associate | Manager, Architecture# #All# #Architecture# #Automotive# #Industrial# ## #Commercial# #Community / Recreational Facilities# #Institution# #Civic & Government# ## #Design Build# #Education# #School# ## #Entertainment Centre# #Commercial# ## #Industrial# #Manufacturing# #Industrial# ## #Mixed Use# #Commercial# ## #Retail# #Commercial# ##
Southfield, Michigan, United States
https://www.linkedin.com/in/gregg-stouder-b66b8996/
As Architecture Lead in Southfield, Michigan—and a Licensed Architect—Gregg has extensive experience solving complex architectural problems, developing creative solutions, and helping clients achieve their goals. Be it the design aspects of a building, the interpretation of a client’s needs, code or environmental constraints, or the nuts and bolts needed for construction, each step in the process requires careful analysis and determination of the right approach to move forward—Gregg has the natural propensity to select the right approach for every project he oversees. His practice markets have included automotive, manufacturing, industrial, commercial, retail, education, residential, and mixed-use buildings. Gregg is responsible for architectural design and development that include organizing and maintaining administrative controls, technical review of all projects, and quality control from project inception through construction and final closeout. He leads a highly creative and talented team of architects who focus on spaces where people work, live, and learn. Gregg is NCARB certified and holds 20 active licenses.
#North America#
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Margaret Parkhill

Director | Sr. Practice Lead, Transportation Engineering
Toronto, ON

Margaret Parkhill
#Director | Sr. Practice Lead, Transportation Engineering# #Active Transportation# #Transportation# ## #All# #Bus Rapid Transit# #Transportation# #BRT# ## #Leader# #Light Rail Transit# #Transportation# #LRT# ## #Mobility Hub# #Transportation# ## #Mobility+# #Transportation# ## #Policy & Design Guidelines# #Subject Matter Expert# #Transit Facilities# #Transportation# ## #Transit Planning# #Transportation# ## #Transportation Engineering# #Transportation# ##
Toronto, Ontario, Canada
https://www.linkedin.com/in/margaret-parkhill-63934925/
Margaret has over 16 years of transportation planning experience, and brings top technical skills in planning and design, plus strong communications to effectively engage with stakeholders and technical agencies on complex and controversial projects. Margaret currently leads a transportation environmental assessment and design group based in Toronto. She is a highly-effective project manager that brings out the best in her team. Margaret’s focus is developing  integrated solutions to complex urban transportation problems through corridor planning and preliminary design. Margaret’s experience includes transit, active transportation, environmental assessments, and preliminary engineering design. Projects include London Bus Rapid Transit, Eglinton Streetscape and Cycle Track Design, MiWay Infrastructure Growth Plan, and the Toronto Relief Line subway business case and planning study. She also has experience in transportation safety and land use/ transportation integration. She is a member of Professional Engineers Ontario, and the Institute of Transportation Engineers, and has published numerous papers and articles.
#North America#
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Raymond Lee

Associate | Manager, Urban Design
Toronto, ON

Raymond Lee
#Associate | Manager, Urban Design# #Airports# #Transportation# ## #All# #High Rise Residential# #Residential# ## #Infill Development# #Light Rail Transit# #Transportation# #LRT# ## #Living+# #Residential# ## #Low Rise Residential# #Residential# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mid Rise Residential# #Residential# ## #Mixed Use# #Commercial# ## #Mobility Hub# #Transportation# ## #Mobility+# #Transportation# ## #Placemaking# #Planning & Urban Design# #Placemaking# ## #Policy & Design Guidelines# #Residential# #Smart Cities# #Strategic Planning#
Toronto, Ontario, Canada
https://linkedin.com/in/raymond-lee-57b25613
Raymond joined IBI in 2021 and brings with him experience in working in infrastructure, commercial, residential, and large mixed-use development schemes. He is focused on and committed to creating connections and revitalizing urban environments through master planning and urban design to enhance the sense of place and establish social value. He has prepared masterplans and framework plans that have been implemented on both small and large sites in Canada, United Kingdom and Asia. His broad career experience includes transit-oriented developments, redevelopment of emerging urban districts and new towns, city-wide masterplanning strategies, high-density urban infill, streetscape designs, and integration of new rail stations into an existing community. Ray has demonstrated strong client liaison skills and delivered projects from inception to planning approval. Raymond is always seeking to identify opportunities to add value for the clients, and to further the growth of character and place for the projects he is leading.
#North America#
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Mark Bendix

Director | Operations
Toronto West, ON

Mark Bendix
#Director | Operations# #Airports# #Transportation# ## #All# #Automotive# #Industrial# ## #Bridge Engineering# #Transportation# #Bridges, Roads & Highways# ## #Brownfield Development# #Development Engineering# ## #Bus Rapid Transit# #Transportation# #BRT# ## #Civic & Government# #Institution# ## #Civil Engineering# #Civil Infrastructure# ## #Civil Infrastructure# #Data Analytics# #Design Build# #Energy Solutions# #Engineering# #Hospitality# #Commercial# ## #Industrial# #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Leader# #Light Rail Transit# #Transportation# #LRT# ## #Maintenance Facilities# #Transportation# ## #Manufacturing# #Industrial# ## #Mobility Hub# #Transportation# ## #Mobility+# #Transportation# ## #Multi-Modal Transportation# #Transportation# ## #Office Lead# #Parking# #Project / Programme Management# #Strategic Planning# #Sustainability & Environmental Management# #Green# ## #Systems# #Systems Integration# #Systems# ## #Terminals# #Transportation# #Transit Facilities# ## #Transit Planning# #Transportation# ## #Transportation# #Warehouse & Distribution Centre# #Industrial# ##
Toronto West, Ontario, Canada
https://www.linkedin.com/in/mark-bendix-46b55b11/
A successful project is usually the result of the close cooperation and team work between the owner, the architect, the engineers, the contractor, and design and construction professionals.
Mark Bendix is a Director with over 35 years of experience in the management, direction and coordination of large technical groups. He has an Electrical Engineering background and has been responsible for the evaluation, planning, design and maintenance of industrial, commercial and institutional facilities across a wide cross section of these sectors. This includes transit facilities, automotive plants, water and wastewater facilities, hotel and entertainment facilities, transformer stations, aviation facilities and office buildings. He is a licensed Professional Engineer in a number of Canadian provinces and is a Fellow of Engineers Canada. Mark is responsible for the technical and financial performance of the Toronto West office that provides a diverse range of services and oversees the performance of design teams on complex projects. This includes interpreting and understanding the project requirements, confirming these with the various stakeholders and sponsors, identifying the various design services needed, maintaining and adjusting resources as required to meet schedules and budgets, coordinating the various design tasks and teams and executing the design quality assurance and control processes.
#North America#
Paul Lavallee

Director | US Sector Lead, Intelligence
Seattle, WA

Paul Lavallee
#Director | US Sector Lead, Intelligence# #All# #Information & Communications Technology# #ICT# ## #Leader# #Mobility+# #Transportation# ## #Office Lead# #Operations# #Project / Programme Management# #Regional / Sectoral# #Senior Management# ## #Senior Management# #Subject Matter Expert# #Systems# #Systems Integration# #Systems# ## #Traffic Engineering# #Transportation# #Traffic Management# ## #Transit Technology# #Transportation# #ITS# #Intelligent Transportation Systems# ## #Transportation# #Transportation Engineering# #Transportation# ##
Seattle, Washington, United States of America
As the US Sector Lead, Intelligence, Paul Lavallee is responsible for overseeing the strategy, growth and development of the company’s new and existing business for IBI Group’s intelligence practice across the US, working closely with Carl-Henry Piel, James Barbosa, and Ritesh Warade who lead the services, solutions and operations subsectors respectively. Bringing over 30 years of experience as part of IBI Group’s intelligence practice, he has helped organizations at all levels effectively integrate technology into city planning, design and operation, and transform how business is conducted today. He is internationally recognized as a transit technology and revenue collection system specialist with specific expertise in bringing together multi-stakeholder teams and delivering high-profile projects. Paul is a licensed Professional Engineer currently working with thought leaders to help integrate technology into the daily fabric of people’s lives. He holds a Bachelor of Applied Science from the University of Toronto, and a Masters of Engineering from the University of California, Berkeley.
#North America# #Pacific West#
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Richard Mazuch

Director of Design Research and Innovation
London, UK

Richard Mazuch
#Director of Design Research and Innovation# #All# #Architecture# #BedPod# #Healthcare# ## #Healthcare+# #Healthcare# ## #Leader# #Learning+# #School# #Education# ## #MedBedHead# #Healthcare# ## #Norbury Lounge Chair# #Healthcare# ## #Policy & Design Guidelines# #Public Outreach# #Subject Matter Expert# #UK Regional#
London, United Kingdom,
Richard Mazuch is an architect and designer who gains great satisfaction from translating holistic ideas into radical but pragmatic solutions. An authority on healthcare, Richard provides profound insight into designing for global trends, patient groups and clinical provision – informing key decisions throughout the architectural process. Richard has worked on healthcare projects in Italy, Hong Kong, Brazil, Oman, UAE, and more recently Australia. He has been elected as a World Architecture Jury member, as well as being a University lecturer/examiner and speaker at the International Conferences. Richard has strong relations with key health bodies. He has worked extensively with the NHS contributing to Health Building Notes, Health Technical Memorandum, and their ‘therapeutic environment’ website feature entitled “Slight Sensitive Design and Sound Sensitive Design” enabling designs to build evidence-based healthcare environments. Richard is a founder and champion of IBI TH!NK. An advocate of evidence-based design, Richard creates innovations that positively impact the psychology and physiology of patient groups. Sense Sensitive Design, Emotional Mapping, the Design Prescription and the hPod are a few of the models that Richard has successfully pioneered. This has led to him co-authoring two new NHS guidelines for ‘Evidence-based Design Healthcare Environments’. Richard is a product designer. In collaboration with manufacturers, he creates interventions, such as the BedPod, to support and improve patient care. Richard works frequently with the NHS and DOH Expert Working Groups and Reference Groups helping to develop new Healthcare Strategies and Guidelines. More recently he has co-authored three key Paediatric Guideline documents entitled: ‘Hospital Accommodation for children and young peopleHBN 23’, ‘Friendly healthcare environments for children and young people’ and ‘Mental Health faculties for children and young people’. Richard was also an active member and contributor to the Expert Reference Group responsible for ‘Facilities for Maternity Care’ HBN21. He was a key contributor to ‘The Children’s National Service Framework’ an NHS and Department of Health document with evaluation process and recommendations Richard made early contributions and document reviews of ‘Creating a Better Health Environment’ an Audit Took Kit by The National Childbirth Trust in 2003. In education, Richard is translating his work in healthcare paediatrics to benefit teachers and students. Working alongside University partners, he is pioneering the development of an ‘optimal learning environment’, improving motivation, behaviour and concentration amongst pupils, especially those with special educational needs.
#United Kingdom#
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Johnny Caliendo

Sr. Project Manager
Raleigh, NC

Johnny Caliendo
#Sr. Project Manager# #All# #Architecture# #Civic & Government# #Institution# ## #Commercial# #Design Build# #Higher Education# #School# #Education# ## #Industrial# #Living+# #Residential# ## #Maintenance Facilities# #Transportation# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mixed Use# #Commercial# ## #Office# #Commercial# ## #Operations Centre# #Transportation# ## #Project / Programme Management# #Retail# #Commercial# ## #Sustainability & Environmental Management# #Green# ## #Transit Facilities# #Transportation# ## #Transportation#
Raleigh, North Carolina, United States of America
Mr. Caliendo has been a leader in the architecture community for over 25 years. He is currently a Senior Project Manager for IBI Group in Raleigh NC. He has worked on many different award-winning projects of various scales and types. His work has been published in foreign and domestic books and periodicals. He has served in leadership positions in government and industry organizations, including the University of Greensboro Development Board and the Board of Design Corps. He has also served as an adjunct professor at the College of Design in Raleigh, North Carolina. His service to the community also includes leadership in Jobs For Life, Raleigh Men’s Shelter, and Project Literacy. He is a LEED AP design professional and has designed both LEED Silver and Gold buildings.
#North America# #Southeast#
Visit Johnny Caliendo's ProfileVisit Andrew Iatridis's Profile
Andrew Iatridis

Associate Principal | Mixed-Use, Buildings
Raleigh, NC

Andrew Iatridis
#Associate Principal | Mixed-Use, Buildings# #All# #Architecture# #Commercial# #High Rise Residential# #Residential# ## #Living+# #Residential# ## #Low Rise Residential# #Residential# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mid Rise Residential# #Residential# ## #Mixed Use# #Commercial# ## #Office# #Commercial# ## #Residential# #Retail# #Commercial# ##
Raleigh, North Carolina, North America
https://www.linkedin.com/in/andrew-iatridis-43608213/
Andrew has over 33 years of experience in architectural design for various building typologies. He has designed private homes, mixed-use developments, office buildings, corporate office headquarters, multi-family mid-rise and high-rise, restaurants, restoration, laboratory buildings, museums, and various specialty buildings. Andrew has a Masters of Architecture and a Minor in Urban Planning from North Carolina State University. He has worked primarily on the east coast of the United States but has also worked in London, UK. Prior to joining IBI Andrew was President of ORA Architecture in Raleigh, and Partner and Director of Design for several other prominent firms in North Carolina.
#North America#
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Oliver Hartleben

Director | Sr. Practice Lead, Placemaking
Vancouver, BC

Oliver Hartleben
#Director | Sr. Practice Lead, Placemaking# #Active Transportation# #Transportation# ## #All# #Bridges, Roads & Highways# #Transportation# ## #Brownfield Development# #Development Engineering# ## #Bus Rapid Transit# #Transportation# #BRT# ## #Civic & Government# #Institution# ## #Civil Infrastructure# #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Leader# #Learning+# #School# #Education# ## #Library# #Institution# #Civic & Government# ## #Living+# #Residential# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mixed Use# #Commercial# ## #Mobility Hub# #Transportation# ## #Mobility+# #Transportation# ## #Multi-Modal Transportation# #Transportation# ## #Placemaking# #Planning & Urban Design# #Placemaking# ## #Policy & Design Guidelines# #Project / Programme Management# #Public Outreach# #Research & Development# #sAVe App# #Strategic Planning# #Terminals# #Transportation# #Transit Facilities# ## #Traffic Management# #Transportation# ## #Transit Oriented Development# #TOD# ## #Transit Planning# #Transportation# ## #Transportation# #Transportation Planning# #Transportation# ##
Vancouver, British Columbia, Canada
http://linkedin.com/in/ohartleben
Oliver Hartleben is a city planner with a public administration degree from the Harvard Kennedy School focused on existing and evolving public outreach, demographic, mobility, built form, and innovation topics. A lateral thinker by nature, Oliver brings together his experience in engaging public, private and community stakeholders for the identification of new opportunities and synergies. Oliver is NCI System-certified to facilitate design charettes, has experience in conducting online engagement processes, and leads IBI Group’s R&D Unit, TH!NK.
#North America#
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Xu Liu

Associate | Senior Software Architect
Calgary, AB

Xu Liu
#Associate | Senior Software Architect# #Advanced Traffic Management System# #Transportation# #ATMS# ## #Advanced Traveler Information System# #Advanced Traveller Information System# #Transportation# #511# #ATIS# ## #All# #Bridges, Roads & Highways# #Transportation# ## #Bus Rapid Transit# #Transportation# #BRT# ## #CurbIQ# #Transportation# #Curbside Management# ## #Data Centre# #Commercial# #Office# ## #Healthcare# #Mobile Technology# #Transportation# ## #Parking# #Seniors Communities# #Residential# ## #Software as a Service# #SaaS# ## #Systems Integration# #Systems# ## #Transit Technology# #Transportation# #ITS# #Intelligent Transportation Systems# ## #Transportation# #Traveller Information# #Transportation# #511# #ATIS# #Advanced Traveller Information System# ##
Calgary, Alberta, Canada
https://www.linkedin.com/in/xu-liu-789a405a
Xu Liu, MSc, BS has 15 years of experience in the areas of Software Architecture, System Design, UML Design, Native and Hybrid Mobile App development, and implementation in Public Transit and Public Health. Xu has actively worked with IBI Group Mobile Team for many years and finished several software services and software application revolutions, including designing and implementing the mobile management system to dynamically create mobile apps, integrating efficient software workflow, building end-to-end encryption/decryption between the distribution system and mobile apps, completing 3D scanning utility tool and so on.
#North America#
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