Who We Are

We are a team of creative professionals focused on serving the public realm through civil engineering, landscape architecture, and urban design.


Our Story

Osborn Consulting is built on the passions and ambitions of our people. From the founding team members who established our firm as a surface water industry leader to new colleagues who join our mission to deliver practical and creative solutions, our story is ongoing. The positive impact our work has on our communities and the environment drives us forward.

Our Work

We are passionate about infrastructure that enhances the way people work, live, and play in the Pacific Northwest. Our clients include public agencies at all levels, from cities and counties to ports and tribal partners.

Our Services

We provide a comprehensive range of services for water resources and land infrastructure projects from conceptual planning to design, PS&E, and construction support.

Our Team

We value our collaborative team environment, where people from different disciplines, experience levels, and backgrounds work together to solve complex challenges. Our team includes entrepreneurs, artists, dreamers, and doers who all bring something special to the table.

Our Locations

Founded in Bellevue, today we have locations across Washington State to serve the greater Pacific Northwest region.

First Osborn Office_2007

Tarelle Osborn at our very first office location in 2006.

First Osborn Office_2007

How We Started

Tarelle Osborn founded Osborn Consulting in 2004 with a desire to forge her own path in the consulting industry. As she built relationships and proved her ability to think creatively about infrastructure challenges, she quickly needed a team that shared her values. As the work and team grew, Tarelle discovered a new passion to make Osborn Consulting a place where everyone has the support they need to grow and explore new opportunities. We are proud of the foundation that Tarelle has fostered and that our team continues to build upon as we grow.

“I started Osborn Consulting to work on projects I was passionate about and to do so with people I enjoy. I wanted my work to mean something, something big and something that couldn’t happen anywhere else.”

Tarelle Osborn, President

Our Vision

As a growing, employee‐owned industry leader in water and land infrastructure, we stand out for delivering practical and creative solutions in partnership with our clients as we stay true to our unique culture and values.

Why Public Infrastructure

From the streets and transit systems we rely on to get us where we’re going to the rivers and streams that protect our vital resources and endangered species, public infrastructure plays a crucial role in our everyday lives. Our mission to provide value to our local communities and the environment is achieved through our commitment to delivering practical and creative solutions.

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Core Values

Our Core Values are our bedrock. They mold our unique culture, steer our endeavors, and inform our decisions. From leadership to each team member, these values are embodied daily, ensuring our actions consistently resonate with our deeply held principles.

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Employee Oriented

Our mission is rooted in cultivating opportunities for our team. As a testament to our commitment, we offer flexible career trajectories, paired with a structured mentorship program and generous professional development opportunities. Annual salary reviews ensure that our team’s growth is acknowledged and rewarded. Apart from these benefits, we prize our nurturing, collaborative, and diverse environment. It’s what sets us apart. Anchored by our Core Values, we’ve crafted a space where every employee feels valued, empowered, and positioned to excel.

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