Surveying, geotech, materials testing, civil, environmental, and health & safety, all under one roof, reducing delays and costs.
ALTA
Environmental Solutions
ALTA
Infrastructure Experts

alta ei
Arizona’s Leading Privately-Owned Engineering Firm
Trusted to deliver accurate, fast, and comprehensive, end-to-end solutions in geotechnical engineering, surveying, civil engineering, materials testing, environmental consulting, and health & safety services.
completed projects
Local Roots | Statewide Reach | National Standards
get started
Engineering Built for Every Challenge
Alta has grown into one of Arizona’s largest privately owned engineering firms. With offices across the state, nationwide reach, and a multidisciplinary team of 250+ employees, we provide the scale, expertise, and responsiveness that major projects demand.
Survey Crews
Employees
States
Professional Engineers / Surveyors
here to help you
Alta is your environmental & infrastructure partner
Survey
Accurate, compliant, and backed by one of Arizona’s largest survey teams
- 20+ survey crews across the state
- Registered Land Surveyors
- Expertise with municipal, county, and private developer requirements
- Proven partner to national firms
Geotechnical Engineering
Ensuring long-term stability and confidence in your project
- Site investigations and soil/rock analysis
- Foundation and pavement design
- Slope stability and erosion control solutions
- Supporting everything from subdivisions to major infrastructure
Civil Engineering
From raw land to reality - full-service site design under one roof
- Comprehensive engineering for residential, commercial, and municipal developments, including subdivisions and master-planned communities
- Expert grading, drainage, stormwater, hillside, retention basin, and utility design for seamless jurisdictional compliance
- Roadway layout, transportation infrastructure, and traffic design that keep communities connected
- Due diligence and planning support for rezoning, entitlements, and sustainable land use
- Custom residential and light commercial design with integrated permitting and 3D visualization
- Engineers who make architecture buildable - turning vision into compliant, cost-effective, constructible plans
- One point of contact - coordinating civil, planning, and architectural design for faster, buildable results
Land and Right of Way
Strategic land solutions supporting utility, energy, infrastructure, and corridor development projects nationwide
- Route feasibility, land constraint screening, and utility coordination that help identify project challenges early
- Easement acquisition, title research, legal descriptions, and permitting coordination aligned with project schedules
- Relationship-driven stakeholder engagement and landowner coordination built on professionalism and trust
- Integrated collaboration between land, survey, engineering, and environmental teams for streamlined project delivery
- Experienced leadership supporting transmission, pipeline, renewable energy, utility modernization, and infrastructure projects nationwide
Materials Testing and Special Inspections
Accurate results, delivered when you need them
- Accredited labs (AASHTO, ADOT, USACE) and certified inspectors
- Field techs equipped with mobile reporting tools for fast turnaround
- Reports compiled, reviewed, and stamped by lead engineers
- 24-72 hour turnaround to keep projects on schedule
- Mobile labs available for statewide projects
Environmental Consulting
National expertise, trusted local credibility
- Phase I & II Environmental Site Assessments with proven, defensible reporting
- Biological Site Assessments & Protected Species Surveys (including burrowing owl surveys) – ensuring regulatory compliance while protecting sensitive habitats
- Practical solutions for contaminated site remediation, hazardous materials, and waste management
- Stormwater, air, and water quality permitting, monitoring, reporting, and compliance support
- Multi-agency permitting expertise
- Decades of success managing multi-state, national, and complex projects
Health & Safety Services
Protecting your people and safeguarding businesses
- OSHA compliance assessments and workplace safety audits
- Process Safety Management (PSM) program development, implementation, and auditing
- Risk Management Program (RMP) support and regulatory guidance
- Industrial hygiene evaluations, exposure monitoring, and air quality testing
- Engaging employee training programs that build lasting compliance
- Ongoing compliance management systems that reduce risk and free up your team’s time
experienced & qualified staff
Have You Received
a Notice of Violation?
Our team of EHS experts can help. We help businesses resolve compliance issues fast, so you can avoid fines and keep operations moving.
our work
Check out our projects
Our Portfolio of successful projects reflects our unwavering commitment to excellence, innovation, and client satisfaction. Each endeavor exemplifies our dedication to delivering exceptional results.

Brooklyn Bedding

Phoenix Arizona Light Rail

Casino Del Sol

Project Pueblo

ADOT I-10 Tucson

Major Airline

Wastewater Enforcement

Major Airline

Flagstaff Waterline Restoration

Chemical Manufacturing Plant

Gilbert Road Bridge

Dairy Processing Facility
get started
Why Choose Alta?


One Point of Contact, Full Accountability
Every project has a dedicated manager, ensuring seamless communication and accountability from start to finish.


Personalized Service, Large-Scale Capabilities
Big enough to handle complex, multi-disciplinary projects, small enough to deliver personal attention and responsiveness.


Integrated Expertise, All In-House


Proven Track Record Across Arizona
Trusted by municipalities, government agencies, and private developers on some of the region’s most critical projects.


Client-Centered Approach
We build partnerships, not transactions. Our clear communication and proactive solutions have earned the trust of Arizona’s top developers and agencies.
career opportunities
Grow Your Career With Alta
We invest in our people. Whether you’re an experienced engineer, or entering the trades, we’ll certify you, train you, and give you the opportunity to grow with a company that’s rapidly expanding.
contact us
Let's get started
Our client-centered service is engineering for large-scale delivery, and structured for personal relationships. Contact us today to get started on your next project.
Our Partners





















