Greeley and Hansen

What Greeley and Hansen does

Greeley and Hansen is a Chicago-headquartered environmental engineering firm founded in 1914 that provides consulting, engineering, and construction management services for water, wastewater, stormwater, and solid waste infrastructure. Its core offering is integrated planning, design, and construction oversight for municipal and government clients, particularly drinking water treatment, wastewater treatment, water resources, and solid waste facilities. Following its 2023 acquisition by TYLin, the unit now operates under the TYLin brand and benefits from access to a broader portfolio covering Buildings and Transportation infrastructure, plus specialized practices in Advisory + Planning, Alternative Delivery (including design-build and P3), Project Management + Construction Management, City Solutions, Climate + Sustainability, and a "Digital Fusion" digital integration module.

The firm generates revenue through project-based professional services engagements, priced via quotes rather than rate cards, sold primarily through direct enterprise field sales and long-cycle consulting relationships with municipal utilities, city governments, and public health agencies. Beyond the United States, it now reaches markets across the Americas, Europe, Asia Pacific, and Latin America via TYLin's regional offices in 17+ countries. The firm's stated competitive advantages are its 100-year operating history, deeply specialized water-sector talent, brand reputation in the U.S. municipal water sector, and dedicated executive leadership such as Michael Hope (SVP, Water Sector Leader, Americas). No specific AI/ML capabilities, proprietary technology platforms, or disclosed revenue figures were available in the input data, leaving the technical differentiation profile largely traditional for an engineering consultancy now embedded in a larger global infrastructure platform.

Name

Greeley and Hansen

Legal name

TYLin

Website

https://greeley-hansen.com

Company type

Private

Founded year

1914

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Greeley and Hansen is a Chicago-based environmental engineering firm, founded in 1914, that provides consulting, engineering, and construction management services for water, wastewater, stormwater, and solid waste infrastructure to municipal and government clients; it now operates under TYLin following a 2023 acquisition.

Ownership category

akta.pro rank

Product category

Environmental Engineering Services

NAICS

Engineering Services (541330), Environmental Consulting Services (541620)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)

akta.pro secondary industry

Sustainability & ESG Consulting (BPAHACAK)

Keywords

• Water engineering consulting
• Wastewater infrastructure services
• Municipal utility consulting
• Construction management services
• Environmental engineering advisory

Headquarters

HQ city

Chicago

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Engineering Consulting Services: Professional consulting and engineering services for water infrastructure projects, including planning, design, and construction management. Revenue is generated through project-based professional service engagements with municipal and government clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Greeley and Hansen is an environmental engineering firm that provides integrated consulting, engineering, and construction management services for water, wastewater, stormwater, and solid waste infrastructure. The firm partners with municipal water utilities, city governments, and public health agencies to deliver planning, design, and construction management capabilities that elevate communities and improve public health, safety, and welfare. Now operating as TYLin, the company also extends its portfolio into buildings and transportation infrastructure services.

Product overview

Greeley and Hansen, now operating as TYLin, offers a unified platform of infrastructure consulting, engineering, and construction management services. The company provides a comprehensive suite of water and wastewater infrastructure services (including drinking water, wastewater treatment, water resources, and solid waste management) as its primary offering, complemented by Buildings and Transportation infrastructure services. The portfolio includes specialized service modules such as City Solutions (urban planning, mobility systems, resiliency), Digital Fusion (digital integration), Climate + Sustainability, Advisory + Planning, Alternative Delivery, and Project Management + Construction Management. The combined entity creates an integrated, full-suite capability to serve and propel clients and communities forward across the Americas.

Differentiator

Problem solved

Functional benefit

Products and services

• Water/Wastewater Infrastructure Services Integrated consulting, engineering, and construction management services for drinking water, wastewater, water resources, and solid waste infrastructure to elevate communities and improve public health. Targeted at municipal water and wastewater utilities, city governments, and public health agencies.
• Buildings Infrastructure Engineering and advisory services for building infrastructure projects.
• Transportation Infrastructure Multi-modal transportation solutions including aviation, bridge, ports and marine, rail and transit, and roads and highways engineering services.
• Advisory + Planning Strategic advisory and planning services to help clients navigate infrastructure challenges and opportunities.
• Alternative Delivery Alternative project delivery methods for infrastructure development including design-build and public-private partnerships.
• Project Management + Construction Management (PM+CM) Comprehensive project and construction management services for infrastructure projects.

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• TYLincoreStrategic or Co-development PartnerGreeley and Hansen operates as A TYLin Company, now rebranded as TYLin. The combination expands water and wastewater capabilities across the Americas, with the combined team better equipped to serve evolving client needs. The partnership brings together multidisciplinary capabilities under the TYLin global infrastructure organization.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• HDR Inc. Employee-owned engineering firm with strong water and wastewater capabilities serving municipal clients. Directly competes in water infrastructure planning, design, and program management.
• Tetra Tech: Leading consulting and engineering firm specializing in water, environment, and sustainable infrastructure. Highly comparable in serving municipal water utilities with consulting, design, and digital water capabilities.
• Arcadis: Global design and consultancy with a sizable water and resilience practice. Comparable in serving municipal and government clients on water infrastructure, climate adaptation, and advisory services.
• Stantec: Global engineering and design consultancy with a significant water practice serving municipalities across North America. Competes directly for water/wastewater design and advisory engagements.
• CDM Smith: Privately held engineering and construction firm with deep water and environment expertise serving municipalities and governments. Comparable in service mix, customer segment, and consulting-led delivery model.
• Black & Veatch: Privately held engineering, procurement, and construction firm with a strong water business serving municipal and utility clients. Closely aligned with Greeley and Hansen in water/wastewater design and program management.
• Brown and Caldwell: Specialist environmental engineering firm focused exclusively on water and wastewater for municipal and industrial clients. A direct, niche competitor comparable in specialization and customer base.
• Jacobs Solutions: Global engineering and consulting firm with a major water and wastewater practice serving municipal and government clients. Highly comparable as a direct competitor in water infrastructure consulting and program management.

Broad incumbents

• AECOM: One of the largest global infrastructure consulting firms with extensive water and environment capabilities. Overlaps broadly with Greeley and Hansen's service portfolio and customer base across Americas, Europe, and Asia.
• WSP: Global professional services firm with a substantial water and environment practice. Competes with Greeley and Hansen on municipal water, wastewater, and resilience engagements across multiple geographies.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xx.com/greeley_hansen
• YouTubevimeo.com/tylininternational
• Facebookfacebook.com/tylininternationalgroup
• LinkedInlinkedin.com/company/greeley-and-hansen
• Instagraminstagram.com/tylininternational

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Greeley and Hansen