We are your trusted partner.

We are construction project experts. We’ve been guiding clients through the planning, design, construction, commissioning, and occupancy of building projects for more than 30 years. Our culture is intensely collaborative, hands-on, results-oriented.

We have the expertise you need. Having a seasoned team of talented professionals in architecture, engineering, construction, facilities planning, building commissioning, operations, and financial management allows us to tailor a team to your strategic needs.

We know the lay of the land. We are a national firm with deep roots in the communities where we work.

We know your industry from the inside. Our wealth of practical experience lets us see the big picture, anticipate obstacles before they become problems, and offer strategic, effective solutions that maximize your project’s success.

Our Values

We are driven by a focus on adding value, building strong relationships, breaking new ground, and working with integrity and honesty.


We believe the best solutions grow out of strong relationships. Our process is intensely collaborative and multi-disciplinary. Our culture fosters creative problem-solving.


We encompass high ethical standards with a commitment to accountability and transparency. Open, ongoing communication with clients and project partners is a hallmark of our approach.


We actively seek out the most challenging projects. We embrace ambitious project goals that foster innovative problem-solving and push us to grow professionally.


We focus intentionally on a core group of industries where our depth of experience adds value for clients. Our persistent attention to detail ensures quality results.


We are committed to delivering industry-leading standards of quality, and continually improving our processes and approaches.

Meet our Executive Team.

  • Jonathan Winikur headshot

    Jonathan Winikur MCPPO

    Executive Managing Director

    Jon has a unique background in project management cultivated over his 30 years of industry experience. He was the co-founder of Strategic Building Solutions (SBS), an industry leader in project management in the Northeast for two decades. He joined Colliers through the acquisition of SBS and has spearheaded the growth of Colliers Project Leaders USA in key markets from Boston and New York to Washington, D.C.

  • Marc Sklenka headshot

    Marc Sklenka LEEP AP, MCPPO

    Managing Director, Northeast

    Marc leads overall service delivery, quality control, and management for building projects throughout the Northeast. He has more than 25 years of experience providing project management services within the construction and renovation industry. As one of our LEED Accredited Professionals, Marc supports LEED projects bringing a sustainable approach to the construction process.

  • Joseph Naughton headshot

    Joseph Naughton AIA, LEED AP, MCPPO

    Managing Director, Northern New England

    Based in our Boston office, Joe leads the Colliers Project Leaders team throughout Massachusetts, Vermont, New Hampshire, and Maine served by our offices in Boston and Agawam. Joe has more than 30 years of experience in owner’s project management services guiding large scale construction and design projects across multiple sectors. He is an expert in meeting client objectives through lean thinking and supply chain management.

  • Joe Bolano headshot

    Joe Bolano 

    Managing Director, New York

    Leading our New York City office operations, Joe is focused on continuing to grow our presence in the New York metro area while simultaneously leading our healthcare and life sciences practice in the region. Prior to Colliers, Joe served as Vice President, Capital Project & Facility Services, for Northwell Health for which he oversaw the execution of all capital projects across approximately 20 New York-area hospitals.

  • Dana Barbera headshot

    Dana Barbera 

    Senior Director, Project Management

    With over 30 years of local experience, Dana leads the Colliers Project Leaders presence in Southern California based out of our Los Angeles office. Dana specializes in tenant build-outs, ground-up office, industrial-warehouse, and large scale building renovations. With a background in architecture, Dana excels at project team formation and management, risk management, cost control, and timely project execution.

  • Evan Wyner headshot

    Evan Wyner PE, CCP, LEED AP

    Senior Director, Commissioning & Energy

    Evan leads our Commissioning & Energy Services team of experienced engineers and commissioning specialists. He is a Professional Engineer with more than 25 years of experience in commissioning and energy management services. Evan is an active member of the commissioning industry and currently serves on the Building Commissioning Certification Board.

  • Sharon Garfi headshot

    Sharon Garfi 

    Senior Director, Finance & Administration

    Sharon provides senior leadership for all aspects of the firm’s internal operations including finance, IT, HR, and administration. She is responsible for developing and overseeing systems to support, measure, and ultimately improve productivity and financial performance. With over 30 years of financial and accounting experience, Sharon plays a key role in the management and growth of Colliers Project Leaders.

Our offices

National reach, local presence & insight.

See all our office locations 




under management


project managers


  • Agawam, MA

    67 Hunt Street, Suite 119
    Agawam, MA 01001 USA

    t: 413.592.0030

    f: 413.285.8592

  • Boston, MA

    160 Federal Street, 11th Floor
    Boston, MA 02110 USA

    t: 617.330.8000

  • Los Angeles, CA

    865 South Figueroa Street, Suite 3500
    Los Angeles, CA 90017 USA

    t: 213.627.1214

  • Madison, CT (Corporate Headquarters)

    135 New Road
    Madison, CT 06443 USA

    t: 860.395.0055

    f: 203.779.5661

  • New York, NY

    20 West 37th Street, 11th Floor
    New York, NY 10018 USA

    t: 212.768.7070

  • Providence, RI

    72 Pine Street
    Providence, RI 02903 USA

    t: 401.234.1055

  • Stamford, CT

    1055 Washington Boulevard
    Stamford, CT 06901 USA

    t: 203.324.0800

  • Washington, DC

    1625 Eye Street, NW, Suite 950
    Washington, DC 20006 USA

    t: 202.862.4350

    f: 202.828.4130