Meet Our Team

JLD is an established organization providing the best value, while continually recruiting talented individuals to add to the firm’s robust and deep knowledge base.

John Drentlaw, LEED AP

John Drentlaw, LEED AP

Principal

John earned his BS in Construction Engineering and Graduate Studies in Finance. Originally from Minnesota. With over 30 years of experience in the A/E/C industry, John is a sought-after expert in creating cost certainty for construction projects. He is is known throughout the industry for the detail and accuracy of the estimates he produces.

Curt Kolar, CPE

Curt Kolar, CPE

CSA - Cost Estimator

Curt earned his BS in Civil Engineering. Originally from California and has provided estimates for bids and budgets, as well as additional cost analyses, for over 40 years. He has worked on every side of the negotiating table and has come within 5% of market value in over 90% of his estimates.

Jacqueline Stewart

Jacqueline Stewart

Senior Consultant - Inspector

Jacqueline earned her Bachelor of Applied Science degree and brings seven years of experience in project coordination to the JLD team, specializing in large and complex projects. Her excellent interpersonal skills and experience meeting hard deadlines make her an asset to any project team.

Eli Mandel

Eli Mandel

MEP - Cost Estimator

Eli earned his BS in Mechanical Engineering. Originally from Oregon and has a diverse portfolio of project experience, ranging from M/E/P systems to landscape architecture. His precise attention to detail enables him to produce accurate and precise cost estimates for projects of all shapes and sizes.

Alexei Marin-Cortes

Alexei Marin-Cortes

Civil & Strucutral Cost Estimator

Alexei earned his BS in Civil Engineering and MS in Structural Enginering. Originally from Columbia and brings expertise in sitework, civil engineering, and structural engineering to the JLD team. He has worked across the country providing estimates for parks, public works facilities, heavy civil projects and more.

Sai Ganesh Nagalla

Sai Ganesh Nagalla

CSA Cost Estimator

Ganesh earned his BS in Civil Engineering and MS in Construction Engineering. Originaaly from India and has contributed to projects across a variety of market sectors, ranging from shopping malls to residential projects. His expertise in construction techniques and project management make him an excellent resource.

Matisse Stone

Matisse Stone

Administration & Executive Assistance

Matisse earned her BS in Anthropogy. Originally from Oregon and she is active in bookeeping, administration, project support, team events and provides Executive Assistance. She enjoys photography and brings biophilic’s and enviromental conservation into our office.   

Tendai Mutume

Tendai Mutume

CSA Cost Estimator

Tendai earned his BS in Construction Engineering and originally from New Jersey before working for JLD. He is active in bicycles and walking around downtown portland. Tendai is working on Strucutral, Civil and Architectural Estimates.

Ivy Drentlaw

Ivy Drentlaw

Electrical Cost Estimator

Ivy earned her BS in Electrical Telecommunications Engineering. Originally from Kenya. She is concurrently working on her Masters Degree in Electrical Engineering, Active in Enviromental Conservation, and Comunity Development. 

Kevin McElroy

Kevin McElroy

Enviromental Cost Estimator

Kevin earned his BS in Enviromental Engineering and has experience collecting enviromental samples within confined spaces. He is dedicated to enviromental improvemnts in the facilities and site development.

Christine Rains

Christine Rains

Graphic Design

Christine earned her BS degree in Landscape Architecture and Graduate Studies in Elementary Education and Teaching. She is active in graphic design and additional related services through her WBE and DBE certified firm. 
(503) 705-6161
[email protected]

April Salsbury

April Salsbury

Human Resources

April earned her degree in Healthcare Administration and MBA in Business Administration. She is focused on human resources for JLD and including these and other services to additional firms through her woman-owned business enterprise, Salsbury & Co.
(503) 850-8411 [email protected]

Contact

Email: [email protected]
OR: (503) 675-4383
WA: (206) 775-8707

Portland

1020 SW Taylor St.
Ste 690
Portland, OR 97205

Bend

1837 NE Kristi Ct
Bend, OR 97701

Seattle

506 2nd Ave.
Ste 1414
Seattle, WA 98104

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© 2021 JLD Cost Consulting LLC

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