main menu

Home About Careers Services Surveys Testimonial Contact Login

Colorado's premiere geological consulting firm

From our revolutionary approach to operations and wellsite geology, to our cutting-edge aerial mapping services, we remain focused on one simple ideal: how can we help our clients streamline their operations and improve their bottom line?

:: Accessible

:: Innovative

:: Affordable

We're growing, and so is our list of services

With all of our services we provide accurate, timely interpretations through our secure online reporting system so our clients can access their data anywhere, anytime using a computer or smartphone. We use Petra, StarSteer, and SES for mapping and geosteering.

:: Well Planning

Understand the geology before you drill

:: Geosteering

Accurate interpretations based on all of the available data

:: Mud Logging

Tracking crucial information from cuttings and rig sensors

:: Core Descriptions

Detailed analysis of sedimentary cores

:: Sample Testing

Mineralogical and elemental analysis of rock samples

:: Project Management

From planning to execution we've got you covered

Aerial Mapping

Using an unmanned aerial vehicle (UAV or drone) our FAA licensed pilots capture high-resolution visible imagery (up to 0.5 cm/pixel) to precisely identify and inspect features on the ground and produce detailed 3D surface and terrain models; and our multispectral imagery is a powerful tool for analyzing plant health. With short flight times and fast turn around on all projects, we will help you avoid the high cost of traditional ground-based methods with better spatial coverage and more useful results.

:: Energy, Infrastructure & Utilities

Plan roads, pipelines, pads and worksites

:: Mining, Quarries & Landfills

Site planning, mapping and inventory management

:: Agriculture, Forestry & Turf Management

Analyze plant health with multispectral imagery (NDVI/NDRE)

:: Urban Planning & Land Management

Boundary, hazard and environmental assessments

:: Construction & Development

Inspections, pre-built and as-built surveys, measuring cut and fill

:: Archaeology

High-resolution maps and surface models reveal ancient structures


"Earth Science Agency is bar none the best wellsite geology and geosteering service provider I have found. All wells 100% in zone. Absolutely the best!!."

Dan Berberick
VP Exploration - Cub Creek Energy

"Earth Science Agency's mudlogging services alone are far above par, but the online reporting system and on-site geosteering are the real game changers. The system ESA has built allows us to have constant up to date information at our fingertips. I appreciate all of the focus and dedication they have given to perfecting their system and look forward to continuing our relationship in the future."

Blaine Martin
Geologist - Bill Barrett Corporation

About Us

In 2003 on the shores of Lake Tahoe, Earth Science Agency began as a scientific and technical consulting company. For the past sixteen years we have served businesses, government agencies, and universities. Today, ESA is centrally located near Denver, Colorado to best serve our current client base.

ESA has a reputation for developing and utilizing breakthroughs in earth science and related technologies. Our mission is to help our clients streamline their operation and improve their bottom line.


Ross Apodaca, BS
Daniel Bettinger, BS
John Braswell, MS
Ethan Cook, MS
Nathan Corbin, MS
Nick Damon, BS
Zach Freeman, MS
Levi Heintzelman, MS
Steven Herbst, MS
Garrett Hickman, MS
Dan Jacobs, BS
Zak Lewis, BS
Curtis Magnino, BS
Griffin Mann, MS
Madison Miller, MS
Walter Nelson, MS
Kyle Newman, BS
Dominic Pitre, BS
Scott Snoy, BS
Bharathi Vallalar, PhD
Mitch Weller, MS
Brian Whitfield, BS


Vandy Blue Spikes, PhD - President
Lindsey Spikes - Business Manager
Hannah Hubert, MS - Operations Manager
Tag Spikes - IT Manager
Erica Cain - Office Manager

Current Openings

All applicants must be US citizens and live in Colorado, pass background and drug tests, and comply with all health and safety rules. All positions are full time with benefits. Please send resumes to

No current openings


Please send us an email if you don't know your username and password.