What is Clark Seif Clark, Inc. (CSC), a part of J.S. Held's NAICS code?

Clark Seif Clark, Inc. (CSC), a part of J.S. Held's NAICS code is 54162 (Environmental Consulting Services).

Clark Seif Clark, Inc. (CSC), a part of J.S. Held Tech Stack

Clark Seif Clark, Inc. (CSC), a part of J.S. Held uses 8 technology products and services including Google Fonts API, imagesLoaded, OWL Carousel, and more. Explore Clark Seif Clark, Inc. (CSC), a part of J.S. Held's tech stack below.

Google Fonts API

Font Scripts

imagesLoaded

Javascript Libraries

OWL Carousel

Javascript Libraries

Constant Contact

Marketing Automation

jQuery Mobile

Mobile Frameworks

Microsoft Office

Office Suites

Google Tag Manager

Tag Management

Flat UI

UI Frameworks

Clark Seif Clark, Inc. (CSC), a part of J.S. Held's Email Address Formats

Clark Seif Clark, Inc. (CSC), a part of J.S. Held uses at least 1 format(s):

Clark Seif Clark, Inc. (CSC), a part of J.S. Held Email Formats	Example	Percentage
FLast@csceng.com	JDoe@csceng.com	65%
FirstLast@csceng.com	JohnDoe@csceng.com	19%
Last@csceng.com	Doe@csceng.com	11%
First@csceng.com	John@csceng.com	5%

Clark Seif Clark, Inc. (CSC), a part of J.S. Held Email Formats

Example

Percentage

FLast@csceng.com

JDoe@csceng.com

65%

FirstLast@csceng.com

JohnDoe@csceng.com

19%

Last@csceng.com

Doe@csceng.com

11%

First@csceng.com

John@csceng.com

Frequently Asked Questions

Where is Clark Seif Clark, Inc. (CSC), a part of J.S. Held's headquarters located?

Clark Seif Clark, Inc. (CSC), a part of J.S. Held'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, Inc. (CSC), a part of J.S. Held's phone number?

You can contact Clark Seif Clark, Inc. (CSC), a part of J.S. Held's main corporate office by phone at

+1-480-460-****

. 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, Inc. (CSC), a part of J.S. Held's official website and social media links?

Clark Seif Clark, Inc. (CSC), a part of J.S. Held's official website is csceng.com and has social profiles on LinkedIn.

What is Clark Seif Clark, Inc. (CSC), a part of J.S. Held's SIC code NAICS code?

Clark Seif Clark, Inc. (CSC), a part of J.S. Held's SIC code is 8734 - Testing Laboratories NAICS code is 54162 - Environmental Consulting Services.

How many employees does Clark Seif Clark, Inc. (CSC), a part of J.S. Held have currently?

As of June 2026, Clark Seif Clark, Inc. (CSC), a part of J.S. Held has approximately 30 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, Inc. (CSC), a part of J.S. Held's employee directory with LeadIQ.

What industry does Clark Seif Clark, Inc. (CSC), a part of J.S. Held belong to?

Clark Seif Clark, Inc. (CSC), a part of J.S. Held operates in the Environmental Services industry.

What technology does Clark Seif Clark, Inc. (CSC), a part of J.S. Held use?

Clark Seif Clark, Inc. (CSC), a part of J.S. Held's tech stack includes Google Fonts APIimagesLoadedOWL CarouselConstant ContactjQuery MobileMicrosoft OfficeGoogle Tag ManagerFlat UI.

What is Clark Seif Clark, Inc. (CSC), a part of J.S. Held's email format?

Clark Seif Clark, Inc. (CSC), a part of J.S. Held's email format typically follows the pattern of FLast@csceng.com. Find more Clark Seif Clark, Inc. (CSC), a part of J.S. Held email formats with LeadIQ.

When was Clark Seif Clark, Inc. (CSC), a part of J.S. Held founded?

Clark Seif Clark, Inc. (CSC), a part of J.S. Held was founded in 1996.

Clark Seif Clark, Inc. (CSC), a part of J.S. Held

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

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