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4LEAF, Inc.'s Overview

Total employees251
HeadquartersHayward
Founded1999

4LEAF, Inc. is a California-based consulting firm providing comprehensive services to public agencies and private sector clients. Their expertise spans construction management, public works administration, civil engineering, building and safety services, and staff augmentation. They are committed to delivering projects with integrity, quality, and value, aiming to enhance communities through improved infrastructure and facilities. 4LEAF focuses on understanding client needs and providing tailored solutions to complex challenges in the built environment.

Where is 4LEAF, Inc.'s Headquarters?

HQ Function

The Hayward headquarters serves as the central operational and administrative hub for 4LEAF, Inc., coordinating projects, managing client relations, and overseeing strategic business development.

Notable Features:

The headquarters is likely a modern office facility equipped to support engineering design, project management, and collaborative team work, situated in a commercial area with good accessibility.

Work Culture:

4LEAF, Inc. fosters a professional and collaborative work environment, emphasizing teamwork, client-focused solutions, and continuous professional development for its engineers, inspectors, and project managers.

HQ Significance:

The Hayward HQ is strategically located to serve clients throughout the San Francisco Bay Area and Northern California, acting as a crucial center for its service delivery and regional operations.

Values Reflected in HQ: The headquarters likely reflects 4LEAF's core values of professionalism, efficiency, and collaboration, providing a functional and well-organized space for its team.

Location:

4LEAF, Inc. primarily operates within the United States, with a strong concentration of offices and projects throughout California. Their functions, including construction management, public works administration, civil engineering, and building safety services, are predominantly delivered to U.S. based clients, particularly public agencies and private developers within California.

Street Address:

2125 Winton Ave

City:

Hayward

State/Province:

CA

Country:

USA

4LEAF, Inc.'s Global Presence

Pleasanton, CA, USA

Address: 6200 Stoneridge Mall Rd, Suite 300, Pleasanton, CA 94588

To offer accessible, on-the-ground support for public agencies and private developers in its service region, facilitating efficient project execution and client communication.

Sacramento, CA, USA

Address: 1401 El Camino Ave, Suite 205, Sacramento, CA 95815

To expand service reach to state-level projects and provide dedicated support for infrastructure and development initiatives in and around the state capital.

Fresno, CA, USA

Address: 751 E. Barstow Ave, Suite 102, Fresno, CA 93710

To cater to the unique infrastructure needs of the Central Valley, including water resource management, transportation, and public facilities.

Irvine, CA, USA

Address: 100 Spectrum Center Drive, Suite 900, Irvine, CA 92618

To serve the dynamic Southern California market, supporting public works, land development, and building safety projects in densely populated and growing areas.

Buying Intent Signals for 4LEAF, Inc.

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of 4LEAF, Inc.

As of April 2025, 4LEAF, Inc.' leadership includes:

Robert T. Vierregger - PE, CASp, President / CEO
Shawn J. Ebrahimian - PE, QSD/P, Vice President
James E. Pryor - PE, QSD, Vice President of Engineering
Racey T. McCarry - MCP, CBO, CASp, Vice President of Building and Safety

Investors of 4LEAF, Inc.

4LEAF, Inc. has been backed by several prominent investors over the years, including:

4LEAF, Inc. is a privately held company. Information regarding specific investors is not publicly disclosed.

Executive New Hires/Exits in the Last 12 Months

Hire0
Exits0

Based on publicly available information, there have been no major widely publicized executive hires or departures at 4LEAF, Inc. in the last 12 months. The leadership team appears to be stable.

Technology (Tech Stack) used by 4LEAF, Inc.

Discover the tools 4LEAF, Inc. uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

4LEAF, Inc. Email Formats and Examples

Common email formats for 4LEAF, Inc. typically involve a combination of the employee's first name initial and last name, or first name and last name initial, followed by '@4leafinc.com'.

[first_initial][last]@4leafinc.com

Format

rveirreger@4leafinc.com

Example

80%

Success rate

News and media

4LEAF, Inc. WebsiteApril 1, 2024

4LEAF Welcomes City of Milpitas – Building & Safety Services

4LEAF, Inc. is pleased to announce its new partnership with the City of Milpitas. 4LEAF will be providing comprehensive Building & Safety services, including plan review and inspection services to support the city's development and ensure public safety....more

4LEAF, Inc. WebsiteFebruary 1, 2024

4LEAF Welcomes City of Fillmore – Building & Safety Services

4LEAF, Inc. has expanded its services by partnering with the City of Fillmore to provide Building & Safety services. This collaboration aims to enhance the city's capacity for plan reviews and inspections....more

4LEAF, Inc. WebsiteSeptember 1, 2023

4LEAF, Inc. Awarded On-Call Construction Management Services for City of Sunnyvale

The City of Sunnyvale has awarded 4LEAF, Inc. a contract for on-call construction management services, reinforcing 4LEAF's reputation in managing municipal infrastructure projects effectively....more

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