When was TSI founded?

TSI was founded in 1961 and raised its 1st funding round 51 years after it was founded.

Where is TSI located?

TSI is headquartered in Shoreview, United States. It is registered at Klíčanská 56 25066 Zdiby.

How many employees does TSI have?

As of Aug 31, 2026, the latest employee count at TSI is 1564.

Is TSI a funded company?

TSI is a funded company, having raised a total of $***** in its 1st and only funding round, a Grant (prize money) round on Feb 28, 2012.

When was the latest funding round of TSI?

TSI's latest funding was a $***** Grant (prize money) round on Feb 28, 2012, with participation from 1 investor.

Where does TSI rank among its competitors?

TSI ranks 6th amongst 359 active competitors, of which 2 are funded. It stands 6th in terms of total funding among its competitors. The most recent competitor to raise funding was Fortive, which secured $2.98M in Mar, 2020.

Who are the top competitors of TSI?

TSI's top competitors include Troax, Fortive and Halma. Among them, Fortive secured the most recent funding round in March, 2020.

TSI - 2026 Company Profile, Team, Funding & Competitors

Company Details

Manufacturer of precision measurement instruments, software, and workflow management solutions. The company offers aerosol and dust monitors, flow meters, particle counters, and fit testers. It provides software for data analysis, instrument control, and integration with other systems. The company delivers services such as repairs, calibrations, and product registration.

Website: tsi.com
Registered Address: Klíčanská 56 25066 Zdiby

Key Metrics

Founded Year

1961

Location

Shoreview, United States

Stage

Acquired

Latest Funding Round

Grant (prize money), Feb 28, 2012, $*****

Investors

TIIN Capital & 1 more

Ranked

6^th among 359 active competitors

Employee Count

1,564 as on Aug 31, 2026

Investment & Acquisitions

Casella & 3 more

Similar Companies

Troax & 377 more

Exit Details

Acquired by Western Group (Dec 01, 1998)

View TSI's full profile

TSI is associated with 2 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
TEOS v.o.s. CIN: 60931426 , Czech Republic, Active	Mar 01, 1994	-	-
TSI INSTRUMENTS INDIA PRIVATE LIMITED CIN: U33125KA2008PTC046667 , India, Active	Jun 05, 2008	₹10 - ₹50 Cr (As on Mar 31, 2025)	-

TSI got acquired by Western Group on Dec 01, 1998.

Click here to take a look at TSI's acquisition in detail

TSI has raised funding over 1 round. Its latest funding round was a Grant (prize money) round on Feb 28, 2012 for $*****. 1 investor participated in its latest round. TSI has 2 institutional investors.

Here is the list of recent funding rounds of TSI:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Feb 28, 2012	8354635	Grant (prize money)	8063870	8572037	4713786	4017767

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View details of TSI's funding rounds and investors

The founders of TSI is Mike Fingerson. Tom Kennedy is the CEO of TSI.

Here are the details of TSI's key team members:

Mike Fingerson: Co-Founder of TSI.

View details of TSI's Founder profiles and Board Members

TSI's employee count trend

TSI has 1,564 employees as of Aug 26. Here is TSI's employee count trend over the years:

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Top competitors of TSI include Troax, Fortive and Halma. Here is the list of Top 10 competitors of TSI, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Troax 1955, Hillerstorp (Sweden), Public	Manufacturer of mesh panel solutions for safety and security	$45.6M	Svolder, Latour	64/100
2nd	Fortive 2016, Portland (United States), Public	Industrial conglomerate	-	-	61/100
3rd	Halma 1894, Amersham (United Kingdom), Public	Manufacturer of safety sensors and life critical environmental monitoring equipments	-	-	57/100
4th	Schmersal 1996, Wuppertal (Germany), Unfunded	Manufacturer of safety switching devices and systems for machine safety	-	-	49/100
5th	E2S warning signals 1992, London (United Kingdom), Acquired	Manufacturer of audible, visual warning signals, and fire safety alarms	-	-	45/100
6th	TSI 1961, Shoreview (United States), Acquired	Manufacturer of precision measurement instruments, software, and workflow management solutions	-	TIIN Capital, OSTI	39/100
7th	Justrite Safety Group 1906, Deerfield (United States), Unfunded	Manufacturer of safety products for chemical, environmental, facility, and jobsite needs	-	-	37/100
8th	JMV 2003, Delhi (India), Unfunded	Manufacturer and suppliers of earthing & lightning safety equipment	-	-	34/100
9th	Safe Kraft 2023, Noida (India), Unfunded	Manufacturer of personal protective equipment	-	-	33/100
10th	Knowsley SK 1896, Manchester (United Kingdom), Unfunded	Company that has been designing, manufacturing, and innovating firefighting products, providing reliable fire protection solutions to customers worldwide	-	-	33/100

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TSI has not made any investments yet. TSI has made 4 acquisitions.

Here is the list of latest three $acquisitions:

Date of Investment/Acquisition	Type	Company Name	Founded Year	Location
Oct 06, 2022	Acquisition	Casella	1799	Buffalo (United States)
Nov 09, 2016	Acquisition	MSP Corp	1985	Saint Paul (United States)
Feb 25, 2014	Acquisition	Enwave Optronics	2003	Irvine (United States)