Management Team

Dan Speck

Partner/Shareholder

Dan Speck has spent over 40 years in the mining, materials, and testing industries. His experience ranges from mine site engineering to executive management of a business nearing $1B in revenue with over 3000 employees.

Dan has served on numerous industry boards over the years such as National Ready Mixed Concrete Association, American Coal Council, and as Chairman and Life Director of the Arizona Rock Products Association.

Dan worked for the Kiewit Companies for over 30 years in various executive positions which included developing a top tier construction materials company through growth and acquisition.

Dan Vermeer

Dan Vermeer

Partner/Shareholder

Currently, Dan is a Principal in Alta Arizona, which he co-founded with Dan Speck, Dan serves as Managing Partner and Serves on the Board. Since the formation, Alta Arizona has grown to become one of the premier full-service Engineering Firms in the State. Dan responsible for spearheading initiatives to exceed customer expectations, seek out new partnerships. Dan also served as Project Lead for Solid Waste feasibility studies and Landfill development projects.

Prior to forming Alta Arizona, Dan served as Area Vice President for Waste Management, where he held responsibility for all operations in Arizona and New Mexico, averaging $500M annual revenue. Under his guidance, the Division underwent a stunning transformation, where he consolidated multiple roll up companies into a one a highly ranked division and was recognized as the Companies top Division multiple times. Under Dan’s direction WM appeared often on Phoenix Business Journal’s list of Best Companies to Work For.

Dan earned a degree in Civil Engineering from the University of Arizona, and is a Registered Professional Engineer in Arizona and California.

Don Loose

Donald Loose RLS

Don Loose is not quite a native Tucsonan but he has lived in the Old Pueblo since the age of five months. Don loves everything related to the Tucson lifestyle with and all of its history and beauty not to mention the fact that he is a diehard Wildcat fan.

Don attended the University of Arizona from 1970-1977. Having grown up in Tucson, he especially finds it rewarding to be able to revisit old friendships from his school days and enjoys remembering how Tucson was back in the 50’s and 60’s. He raised three children in Tucson and is a proud grandfather of five grandchildren, two living in Las Vegas and three living in the Los Angeles area. In 2001, Don and his beautiful wife, MaryAnn, moved to Los Angeles to be closer to their children and the couple have maintained residences in both cities since that time.

Don has been a licensed surveyor in Arizona since August, 1989. He has owned a number of survey companies in both Southern Arizona and Los Angeles, California. Don is an avid outdoors person and among his favorite things to do is to hike trails within any of the mountain ranges surrounding Tucson or ride a bike on the River Walk.

John Marshall

John Marshall

Management Team

John Marshall is a Registered Land Surveyor in the State of Arizona who helps the public build the future and solves complex land related disputes.

Before starting at Alta Arizona, John worked 7 years as the Chief Surveyor at the Arizona Department of Transportation and 3 years as a Project Surveyor at A Team Professional Associates. After a successful career serving the State of Arizona in the mapping department and various home builders and the Army Corps of Engineers in the construction industry, John returned to the commercial sector to solve boundary issues and continue to build Arizona for the future.

John enjoys off road exploring and golfing.

John Oliver

SR PROJECT MANAGER/TUCSON CIVIL ENGINEER

John Oliver has over 12 years’ experience performing civil design services and project management throughout southern Arizona and the southwestern United States. John graduated from the University of Arizona in 2006 and is a licensed Professional Engineer in Arizona and Colorado. He also holds the designations of  Certified Floodplain Manager (CFM), Leadership in Energy and Environmental Design Accredited Professional (LEED AP) and Envision Sustainability Professional (ENV SP).

John enjoys giving back to the community by volunteering his time and energy to various organizations throughout the year. Activities have included litter removal, walking shelter dogs, habitat construction for relocated owls and food collection during the annual Winterhaven festivities. In his free time, John gets the most of out of the beautiful weather Tucson and southern Arizona provides, by hiking, biking or running within the nearby mountains or along The Loop, which he is especially proud of since being a part of the design team for several segments!

Scott Joiner

Principal/Tucson Geotechnical Manager

Scott Joiner has over 15 years in the engineering and materials testing industries.  His varied experience and background includes estimating, recruiting, staff management, “cradle to grave” project management, and laboratory management, however Scott’s expertise is in Client Services, such as Business development and Client retention. He believes in the philosophy that you must treat every client as if they are your only client, because someday they might be! 

Scott has been a member of many industry associations over the years such as APWA (American Public Works Association, Valley Partnership, HBACA (Home Builders Association of Central Arizona), SAHBA (Southern Arizona Home Builders Association), MPA (Metro Pima Alliance), NAIOP (Commercial Real Estate Development Association) and CASHE (Central Arizona Society of Health Care Engineers). 

Scott believes in the value of community and as such has sat on the board of numerous not for profit charity organizations, including Arizona Friends of Foster Children Foundation, and volunteered his time to coach both football and wrestling at Amphitheater Middle School in Tucson, Arizona. 

Scott has a degree in Mechanical Engineering from the University of Arizona.

Sean Fabor

Sean Fabor, PE

Geotechnical Principal and Director

Sean has over 13 years of experience in the geotechnical, construction material testing and special inspection industry. Sean serves as the Principal and Director of all projects for Alta and is responsible for the day to day operations of the company. Serving as Engineer of Record for many materials testing projects over the years, Sean’s experience will help guide all of our field staff to ensure materials testing compliance with all applicable specifications including those specific to the City of Phoenix On-Call.

Sean has specific design and engineering experience in the following:

  • Geotechnical foundation design
  • Pavement design
  • Material testing
  • Asphalt, concrete and soil cement mix design
  • Structural special inspection

Survey Team

Anthony White

Beau Bertoldo

Beau Bertoldo

Bruce Loose

Bruce Loose RA

Derek Harris

Frank Coleman

Frank Coleman

Genny Martin

Genny Martin RLS

Jaime Reyes

Jaime Reyes

Jaime Reyes Jr.

Jaime Reyes Jr.

Michelle Branson

Steve Sample

Steve Sample RLS

Geotechnical Team

Cody Ernest

Cody Ernest

Scott Adams

Scott Adams

Tony Weber

Tony Weber