Insights

Growing Market Presence Clark Seif Clark has expanded its geographical reach across the United States with multiple office locations including Los Angeles, San Francisco, Long Beach, Phoenix, and San Diego, providing opportunities to offer regional environmental compliance services to a broader client base.

Diverse Service Portfolio The company's comprehensive expertise in indoor air quality, environmental chemistry, and remediation services positions them well to meet the complex environmental consulting needs of property managers, insurers, healthcare facilities, and educational institutions, opening avenues for cross-selling integrated solutions.

Focus on Regulatory Compliance CSC’s extensive experience in regulatory and environmental assessment services such as Phase I and II investigations can appeal to clients involved in real estate transactions and contaminated site management, creating potential sales opportunities around compliance and litigation support.

Active Industry Engagement Participation in industry events and conferences, like the Environmental Information Association Conference and community parades, demonstrates active engagement and visibility, allowing business development teams to leverage networking opportunities for new client relationships.

Technology and Data Utilization Utilizing advanced digital tools such as Google Cloud and analytics platforms presents opportunities to enhance service delivery, improve client reporting, and develop targeted marketing strategies that can attract larger clients with sophisticated environmental management needs.

Clark Seif Clark Tech Stack

Clark Seif Clark uses 8 technology products and services including WordPress, Google Cloud, OWL Carousel, and more. Explore Clark Seif Clark's tech stack below.

  • WordPress
    Content Management System
  • Google Cloud
    Infrastructure As A Service
  • OWL Carousel
    Javascript Libraries
  • imagesLoaded
    Javascript Libraries
  • SiteGround
    Platform As A Service
  • Google Analytics
    Web Analytics
  • AddToAny Share Buttons
    Web Platform Extensions
  • AddToAny
    Widgets

Clark Seif Clark's Email Address Formats

Clark Seif Clark uses at least 1 format(s):
Clark Seif Clark Email FormatsExamplePercentage
FLast@csceng.comJDoe@csceng.com
65%
FirstLast@csceng.comJohnDoe@csceng.com
19%
Last@csceng.comDoe@csceng.com
11%
First@csceng.comJohn@csceng.com
5%

Frequently Asked Questions

Where is Clark Seif Clark's headquarters located?

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Clark Seif Clark's main headquarters is located at 21732 Devonshire Street 2nd Floor Chatsworth, California 91311 United States. The company has employees across 1 continents, including North America.

What is Clark Seif Clark's phone number?

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You can contact Clark Seif Clark's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Clark Seif Clark's official website and social media links?

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Clark Seif Clark's official website is csceng.com and has social profiles on LinkedIn.

What is Clark Seif Clark's SIC code NAICS code?

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Clark Seif Clark's SIC code is 8734 - Testing Laboratories NAICS code is 54162 - Environmental Consulting Services.

How many employees does Clark Seif Clark have currently?

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As of April 2026, Clark Seif Clark has approximately 31 employees across 1 continents, including North America. Key team members include Senior Vice President: D. A. D.Project Manager: C. G.Office Manager: S. D.. Explore Clark Seif Clark's employee directory with LeadIQ.

What industry does Clark Seif Clark belong to?

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Clark Seif Clark operates in the Environmental Services industry.

What technology does Clark Seif Clark use?

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Clark Seif Clark's tech stack includes WordPressGoogle CloudOWL CarouselimagesLoadedSiteGroundGoogle AnalyticsAddToAny Share ButtonsAddToAny.

What is Clark Seif Clark's email format?

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Clark Seif Clark's email format typically follows the pattern of FLast@csceng.com. Find more Clark Seif Clark email formats with LeadIQ.

When was Clark Seif Clark founded?

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Clark Seif Clark was founded in 1996.

Clark Seif Clark

Environmental ServicesCalifornia, United States11-50 Employees

The science, safety, and engineering professionals at CSC possess extensive experience delivering wide ranges of environmental consulting and industrial hygiene (IH) services, with particular emphasis in two disciplines: 
1.	Indoor air quality (IAQ) or indoor environmental quality (IEQ), 
2.	Environmental chemistry and regulatory compliance related to soils and groundwater.  

CSC's IEQ and IH  services include initial investigations, project monitoring, remediation closure testing, bid management, litigation support, expert testimony, and more. 

CSC's environmental offerings include both Phase I and Phase II environmental assessments of properties in real estate transactions, investigation and feasibility studies of contaminated sites, evaluation and/or management of remedial actions, and representation before regulatory agencies.

CSC responds for clients on a scheduled or emergency basis (24 hours a day, 7 days a week).

Our clients include property managers, insurance companies, hospitals, schools, universities, attorneys, construction companies, State and cities.  

CSC's expertise is quite diverse and includes, but is certainly not limited to, the following:
Asbestos ---Mold---Mercury---Chinese Corrosive Drywall ---Meth Labs ---Sewage Incursion ---Infrared Moisture Surveys---Infectious Agents---Sick Building Syndrome (SBS)---Legionellosis---Mysterious Odors---Lead Based Paint (LBP)---Trauma Scenes---Ricin---Radon---Etc.

We serve the entire United States of America.
OFFICE LOCATIONS
•	Los Angeles
•	San Francisco
•	Long Beach
•	Phoenix
•	San Diego
STRATEGIC PARTNERS
•	Nationwide 

www.csceng.com

Section iconCompany Overview

Headquarters
21732 Devonshire Street 2nd Floor Chatsworth, California 91311 United States
Phone number
Website
csceng.com
SIC Code
8734 - Testing Laboratories
NAICS Code
54162 - Environmental Consulting Services
Founded
1996
Employees
11-50

Section iconFunding & Financials

  • $25M$50M

    Clark Seif Clark's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    Clark Seif Clark's revenue is estimated to be in the range of $25M$50M

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