Guernsey Email Formats

Architecture and Planning • Oklahoma City, Oklahoma, United States • 101-200 Employees

Guernsey Email Formats

Guernsey uses 2 email formats. The most common is {first initial}.{last name} (e.g., j.doe@guernsey.us), used 52.3% of the time.

Format	Example	Percentage
{first initial}.{last name}	j.doe@guernsey.us	52.3%
{first name}.{last name}	john.doe@guernsey.us	45%

Key Contact at Guernsey

Jared Stigge

Chief Executive Officer

Mobile @guernsey.us

Company overview

Headquarters	5555 North Grand Boulevard, Oklahoma City, Oklahoma 73112-5507, US
Phone number	+14054168100
Website	guernsey.us
NAICS	5413
SIC	871
Keywords	Water Resources, Interior Design, Planning, Privatization, Public Works, Civil Engineering, Consulting, Utility Design, Environmental, Transportation, Engineering, Leed, Architecture, Site Design, Cybersecurity, Power Engineering, Site Investigations, Electrical / Mechanical Engineering, Distribution Cost Of Service, G&T Power Solutions
Founded	1928
Employees	101-200
Socials

About Guernsey

Founded in 1928, Guernsey is a multidisciplinary design and consulting firm based in Oklahoma City, Oklahoma, and with work across five continents. With a legacy of delivering innovative solutions across diverse industries, Guernsey is committed to advancing sustainable practices and enhancing the built environment. Guernsey is 100% owned by its people, passionately entrepreneurial, and culture-driven. Guernsey’s services span architecture, engineering, economic and management consulting, environmental and transportation planning, and cybersecurity solutions—reflecting the firm’s belief that integrated expertise leads to stronger, more enduring outcomes.

Employees by Management Level

Total employees: 101-200

Seniority

Employees

Entry

Manager

Senior

Employees by Department

Guernsey has 114 employees across 11 departments.

Departments

Number of employees

Funding Data

Guernsey has never raised funding before.

Guernsey Tech Stack

Discover the technologies and tools that power Guernsey's digital infrastructure, from frameworks to analytics platforms.

Simpli.fi

Advertising

Adobe Fonts

Font scripts

Modernizr

JavaScript libraries

jQuery

JavaScript libraries

Google Tag Manager

Tag managers

Nginx

Reverse proxies

Slick

JavaScript libraries

HTTP/3

Miscellaneous

Apple iCloud Mail

Webmail

Open Graph

Miscellaneous

Facebook Login

Authentication

PWA

Miscellaneous

Frequently asked questions

Guernsey is located in Oklahoma City, Oklahoma, US.

You can reach Guernsey at +14054168100.

Guernsey was founded in 1928, making it 98 years old. The company has established itself as a significant player in its industry over this time.

Guernsey has approximately 101-200 employees. The company continues to grow its workforce to support its business operations and expansion.

Key Contact at Guernsey

Jared Stigge

Chief Executive Officer

Mobile @guernsey.us

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