Management


Edward Bristow, PLS
President
  • Over 35 years of professional experience in Surveying and Mapping
  • Supervises personnel, prepare estimates/project scope documents, boundary analysis, proof and review survey work, ensure effective communication with client and timely completion of projects
  • Experience in public and private sector projects, construction layout, subdivision infrastructure, office and field, rural and urban
  • Professor for online Boundary Law courses at Metropolitan State College of Denver


John B Guyton, PLS
Chairman & C.E.O.


Zack Gowan, PLS
Vice President
  • Over 23 years of professional experience in Surveying and Mapping
  • Licensed since 1993 in Colorado with more than 20 years at Flatirons
  • Also licensed in Utah, Idaho, Washington and North Dakota
  • Surveyed in Colorado, Wyoming, Illinois, Iowa, Nevada, Nebraska and Utah
  • Additional experience in title search and oil and gas in Colorado, Wyoming, Nebraska, Montana, North Dakota, Utah, Iowa and New Mexico
  • OSHA 40 Hr. Hazwoper certified


Terry Sanders
Corporate Secretary & Chief Financial Officer
  • He has been employed at Flatirons, Inc since 1986, beginning a surveyor in the field
  • Received diploma in Surveying & Mapping from the Denver Insitute of Technology, 1985
  • Also experienced as an AutoCAD technician
  • Performing bookkeeping and accounting functions at Flatirons, Inc. since 1992
  • Contributor to "HP41-C/CV/CX Training Course Manual for Surveyors and Engineers" by Michael J. Scanlon, LSS Publishing Company (1985)
  • Multiple "Awards of Distinguished Service" from the Professional Land Surveyors of Colorado


William Werner
Senior Project & System Administrator
  • Over 26 years of professional experience in Surveying and Mapping
  • Manager of the Drafting Department and Systems Administrator at Flatirons, Inc
  • Bill has over 10 years experience in international mapping for geophysics
  • He has been part of the Flatirons team for over 16 years, working in both in field and office operations
  • He oversees all scheduling and quality control, and performs all document checking



Tom Willis
Vice President of Field Operations
  • Over 22 years of professional experience in Surveying and Mapping
  • Employed at Flatirons, Inc since 2000
  • Supervisor of field and office personnel
  • Prepares project estimates and project scope documents
  • Bachelor of Science at Clemson University, 1981
  • Licensed Professional Surveyor in several states


Sterling Bennink
ILC Department Manager
  • Over 22 years of professional experience in Surveying and Mapping
  • Department manager and co-owner of Flatirons, Inc.
  • Graduate of the Ohio University with a bachelor's in Computer Cartographics
  • Specializing in ILC house stakings, residential surveying, and elevation certificates



Ken Clifford, PE
Principal Engineer/Manager
  • Employed at Flatirons, Inc for over 9 years
  • Licensed as a Professional Engineer in Colorado, Wyoming and Oklahoma
  • Extensive roadway design engineering, site design, drainage analysis & urban planning
  • Invited to the Civil, Architectural and Environmental Engineering Honors Society
  • Experience with residential, commercial, and industrial projects
  • Design projects include grading, drainage analysis, urban planning, utility infrastructure, storm water management, and erosion and sediment control



Nate Vielehr, LSI
Survey Manager
  • Over 12 years of professional experience in Surveying and Mapping
  • Skilled in EDM total stations, data collection systems, digital level, CAD and GPS equipment
  • Supervises field and office personnel
  • Performs boundary analysis, review of survey work, construction project management
  • Strong technical competencies in AutoCAD, Softdesk, Land Development Desktop and TGO


Kurt Ernstberger, PLS
Manager of Construction, PCS, GIS
  • Over 12 years of professional experience in Surveying and Mapping
  • Ground based LIDAR and 3D modeling
  • Extensive CAD office and field experience in all types of projects including topography, volume, roadway and construction
  • Experienced in GPS surveys, RTK, DGPS and static
  • Chair and member, Colorado Section of ACSM
  • Treasurer, Central Colorado Professional Surveyors