Built on Expertise. Driven by Purpose.
Spheros Environmental was built by bringing together respected environmental consulting firms with a shared way of working. Across disciplines and markets, our teams have long applied rigorous science, thoughtful judgment, and a clear understanding of how environmental information supports real-world decisions.
For decades, this approach has supported communities, agencies, and organizations across air, water, ecosystems, and the built environment, earning trust through technical depth, clarity, and credibility.
That expertise now operates within a single, integrated firm, strengthening collaboration and consistency across our work. By uniting complementary disciplines and perspectives, Spheros applies experience more effectively across complex environmental challenges.
Today, we focus on producing analysis that is technically sound, clearly communicated, and designed to support confident decision-making that leads to meaningful environmental outcomes.
Select a Legacy Firm
Sonoma Technology
Foundation in Air Quality and Climate Science
Sonoma Technology established a nationally respected legacy in air quality, climate science, and environmental data analytics. Their work advanced atmospheric modeling, emissions analysis, wildfire smoke forecasting, and environmental sensor applications, supporting public agencies and communities navigating increasingly complex air quality and climate challenges. This work was grounded in rigorous science and deep regulatory expertise, particularly in environments where transparency and defensibility were essential.
This foundation strengthens Spheros Environmental’s ability to deliver data-driven solutions for air quality management, climate resilience, and community health. Sonoma Technology’s expertise continues to inform advanced modeling, forecasting, and decision support where precision, credibility, and real-world application matter most.
Founded
Acquired



Featured Projects
LRE Water
Foundation in Integrated Water and Environmental Solutions
LRE Water built a strong reputation for science-based water resource planning, policy, and environmental solutions that support sustainable water management. Their work spanned groundwater and surface water modeling, water rights engineering, aquatic ecology, and environmental compliance, serving communities, utilities, and agencies across the western United States. The firm was known for integrating technical rigor with practical insight to support long-term, resilient water decisions.
This foundation contributes to Spheros Environmental’s ability to deliver integrated water solutions that balance hydrologic science, regulatory clarity, and environmental stewardship across diverse settings. LRE Water’s legacy continues to shape work where water availability, ecosystem health, and community needs intersect.
Founded
Acquired



Featured Projects
HydroGeoLogica
Foundation in Mining, Environmental Investigation, and Remediation
HydroGeoLogica established a nationally recognized legacy supporting mining and resource extraction projects through complex environmental investigation, remediation, and water management challenges. Their work addressed mine water control, pit lake formation, geochemical characterization, contaminant fate and transport, and long-term site management across active and legacy mining operations. This expertise was grounded in rigorous hydrogeologic analysis and practical experience operating within highly regulated environments.
This foundation strengthens Spheros Environmental’s mining and federal capabilities, particularly for projects requiring defensible science, integrated water and geochemical understanding, and durable remediation strategies. HydroGeoLogica’s expertise continues to inform work where environmental performance, regulatory compliance, and long-term site stewardship are critical to responsible resource development.
Founded
Acquired



Featured Projects
Timberline Aquatics
Foundation in Aquatic Biology and Monitoring
Timberline Aquatics built a highly specialized practice in aquatic biological monitoring and assessment. Their work focused on fish and macroinvertebrate studies, habitat evaluations, and data analysis that support regulatory compliance, restoration planning, and ecosystem health in sensitive aquatic environments.
This foundation enhances Spheros Environmental’s aquatic science and ecology services, providing high-quality biological data and insight that inform water resource management, habitat restoration, and long-term environmental monitoring.
Founded
Acquired



EcoAnalysts
Foundation in Biological Assessment and Taxonomy
EcoAnalysts contributed industry-leading expertise in ecological taxonomy and bioassessment, supporting a wide range of regulatory, compliance, and conservation efforts. Their certified laboratory services and biological monitoring programs provided reliable, high-quality data used to assess biodiversity, detect endangered species, and evaluate ecosystem health across freshwater, terrestrial, and marine environments.
This foundation enhances Spheros Environmental’s ability to support science-based decision-making through defensible biological data. EcoAnalysts’ legacy continues to inform ecological assessments, regulatory compliance, and conservation planning where accuracy, consistency, and technical credibility are critical.
Founded
Acquired



Featured Projects
Northwater Consulting
Foundation in Watershed Science and Nature-Based Infrastructure
Northwater Consulting brought deep expertise in watershed science, stormwater management, and nature-based infrastructure solutions. Their work helped communities and agencies improve water quality, reduce flood risk, and restore watershed function through integrated planning, design, and implementation.
This legacy strengthens Spheros Environmental’s work in watershed resilience and sustainable infrastructure. Northwater’s approach emphasized ecological integrity, constructability, and long-term performance, reinforcing solutions that balance environmental outcomes with community priorities.
Founded
Acquired



Featured Projects
Four Peaks Environmental
Foundation in Environmental Planning and Regulatory Support
Four Peaks Environmental developed a trusted practice supporting environmental planning, permitting, and regulatory compliance for complex projects. Their work focused on helping clients navigate regulatory requirements with clarity, balancing environmental considerations, project objectives, and stakeholder expectations.
This foundation contributes to Spheros Environmental’s strength in impact assessment, permitting strategy, and interdisciplinary coordination. The Four Peaks legacy supports projects where clear documentation, sound analysis, and effective regulatory engagement are essential to success.
Founded
Acquired



Featured Projects
Ironwood Consulting
Foundation in Ecological and Biological Sciences
Ironwood Consulting established a strong foundation in ecological assessment, biological monitoring, and applied environmental science. Their work reinforced the value of high-quality field data paired with thoughtful analysis.
That expertise continues within Spheros Environmental, supporting ecology-focused services that inform restoration, compliance, and long-term environmental stewardship.
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