Violation Tracker Parent Company Summary

Parent Company Name: 
MKS Instruments
Ownership Structure: 
publicly traded (ticker symbol MKSI)
Headquartered in: 
Major Industry: 
miscellaneous manufacturing
Specific Industry: 
scientific equipment
Penalty total since 2000: 
Number of records: 
Top 5 Offense Groups (Groups Defined)Penalty TotalNumber of Records
environment-related offenses$41,0303
safety-related offenses$17,2492
Top 5 Primary Offense TypesPenalty TotalNumber of Records
environmental violation$41,0303
workplace safety or health violation$17,2492

Parent-subsidiary linkages are based on relationships current as of the latest revision listed in the Update Log, which may vary from what was the case when a violation occurred. The penalty totals are adjusted to account for the fact that the individual entries below may include both agency records and settlement announcements for the same case; or else a penalty covering multiple locations may be listed in the individual records for each of the facilities. The totals are also adjusted to reflect cases in which federal and state or local agencies cooperated and issued separate announcements of the outcome. Duplicate or overlapping penalty amounts are marked with an asterisk in the list below.


Subsidy Tracker data on financial assistance to this company by federal, state and local government agencies can be found here.

Individual Penalty Records:

Click on the company or penalty amount for more information on each case.
Download results as CSV or XML (maximum 10,000; for access to larger downloads contact Phil Mattera)
Company Primary Offense Type Year Agency Penalty Amountsort icon
MKS INSTRUMENTS INC environmental violation 2003 MA-ENV $15,000
MKS Instruments HPS Products Group environmental violation 2004 CO-DPHE $13,600
OPHIR OPTICS LLC environmental violation 2009 MA-ENV $12,430
MKS INSTRUMENTS, INC. workplace safety or health violation 2020 OSHA $11,059
MKS INSTRUMENTS workplace safety or health violation 2008 OSHA $6,190
Download results as CSV or XML (maximum 10,000; for access to larger downloads contact Phil Mattera)