Menemsha Architecture is comprised of a multicultural, creative community of design professionals with diverse backgrounds encompassing all aspects of the profession of architecture.

For nearly a quarter century, our designers, branding specialists, and architects have provided our national and international clients with exceptional design solutions. What continues to motivate us is the ever unique nature of our clients’ visions. We thrive on surpassing expectations and bringing projects to life.


Spaces define moments. They shape memories. We are committed to the creation of designs that bring about and orchestrate meaningful human experiences.

We provide innovative, delightful, and fresh solutions to our clients, helping transform the built environment in the process.


Dariusz Wiecha, NCARB, LEED AP, CMQ/OE

Senior VP, Operations
A unique ability to streamline complex processes—that’s the shortest possible summary of Dariusz’s extensive skill set. Not only as a highly accomplished business operations expert with more than 20 years’ experience in architecture and construction, but also as a restorer of vintage motorcycles (If he’s not picking up the phone, he’s probably in the garage tinkering with his Chang Jiang motorcycle, a descendant of the 1937 BMW R71. Or his 1977 Italian Vespa.) Dariusz prides himself on client-focused service excellence and inspired teamwork, traits he honed while leading complex, multimillion-dollar global projects for Western Union and Worldpay in the US, UK, Canada, Mexico, Australia, New Zealand, and Japan. Has also led large teams in places like Costa Rica and Lithuania. A true man of the world, Dariusz began his architectural studies in Poland and completed them in Canada, then plied his trade in the US. When he discovered that he had a passion for operations, he went back to school full-time for an MBA at Duke University’s Fuqua School of Business. So is he an architect at heart? A builder? A business executive? Or an operations leader? The answer is yes. Which is why clients love him, and Menemsha is proud to have him on board.

Tom Speroni

Executive VP / Principal
After earning a degree in Business from the University of Denver, where Tom also studied Real Estate and Construction Management, he found himself in Seattle, WA. Leveraging his academic and hands-on construction experience, he positioned himself at the forefront of the expansion for a little-known local coffee shop chain poised for growth. Five years later, his entrepreneurial spirit started calling. Tom departed his senior role to become a partner at Menemsha. With the client’s perspective in focus, he pioneered an innovative Integrated Project Delivery (IPD) process for retail expansion. Working with fast-growing national restaurant and retail chains, he leveraged his Seattle expertise to streamline the development process and to accelerate store openings. Later, bringing this strategy into the healthcare sector, he successfully applied a similar approach to dialysis centers, Lasik eye surgery clinics, and dental offices. A recognized industry advocate for the pursuit and embrace of technology to create an edge in commercial development, Tom is a sought-after speaker on the benefits of Integrated Project Development and synergistic retail rollouts.


Clients seek out Menemsha for our unique mix of professional services that ensure accountability, value, and quality in a scalable model.