When was ESI founded?

ESI was founded in 1944 and raised its 1st funding round 66 years after it was founded.

Where is ESI located?

ESI is headquartered in Portland, United States.

How many employees does ESI have?

As of May 31, 2026, the latest employee count at ESI is 1630.

Is ESI a funded company?

ESI is a funded company, having raised a total of $4.75M across 3 funding rounds to date. The company's 1st funding round was a $***** Grant (prize money) round, raised on Nov 01, 2010.

How much is ESI worth?

The last known valuation of ESI was $***** as of Oct 30, 2018.

When was the latest funding round of ESI?

ESI's latest funding was a $***** Unattributed round on Aug 01, 2016, with participation from 0 investor. Its primary sector is Semiconductor Design and Manufacturing Services. In United States, the Semiconductor Design and Manufacturing Services sector has seen $35M in funding in 2026 to date.

What is the annual revenue of ESI?

Annual revenue of ESI is between $100M and $500M as on Mar 31, 2018

ESI - 2026 Company Profile, Team, Funding & Financials

Q: Is ESI an acquired company?

ESI got acquired by MKS Instruments on Oct 30, 2018.

ESI is an acquired company based in Portland (United States), founded in 1944 by Douglas C Strain. It operates as a Provider of laser processing systems for flex and rigid PCBs and MLCCs.. ESI has raised $4.75M in funding, with last known valuation of $*****.

Company Details

Provider of laser processing systems for flex and rigid PCBs and MLCCs. It offers solutions for flexible PCB laser processing, HDI PCB laser processing, and high-speed MLCC testing. These solutions are designed to help manufacturers optimize the production of materials, components, and systems used in modern electronic devices. The company also provides metrology systems for stent and THV frame measurement in the life and health sciences sector.

Website: www.esi.com
Social
Email ID: *****@esi.com
Phone Number: +1 **********

Key Metrics

Founded Year

1944

Location

Portland, United States

Stage

Acquired

Total Funding

$4.75M in 3 rounds

Latest Funding Round

Unattributed, Aug 01, 2016, $*****

Last Known Valuation

$***** as on Oct 30, 2018

Investors

North Bay Angels & 1 more

Annual Revenue

$100M - $500M as on Mar 31, 2018

Employee Count

1,630 as on May 31, 2026

Investment & Acquisitions

Visicon & 4 more

Similar Companies

Foxconn Electronics & 1802 more

Exit Details

Acquired by MKS Instruments (Oct 30, 2018)

View ESI's full profile

ESI is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
ELECTRO SCIENTIFIC INDUSTRIES INC CIN: 726514 , United States, Active		$100M - $500M (As on Mar 31, 2018)	-	-

ESI got acquired by MKS Instruments on Oct 30, 2018 at an acquisition amount of $*****.

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

ESI has raised a total funding of $4.75M over 3 rounds. Its first funding round was on Nov 01, 2010. ESI has 2 institutional investors.

Here is the list of recent funding rounds of ESI:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Aug 01, 2016	5493955	Unattributed	7224325	4914335	6401161	4873913
Dec 23, 2015	9128895	Grant (prize money)	2662246	2680881	9909987	Europa
Nov 01, 2010	9881530	Grant (prize money)	7850429	6674979	4336822	Europa

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View details of ESI's funding rounds and investors

The founders of ESI is Douglas C Strain.

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

Douglas C Strain: Founder of ESI.
Contact Info: 1 email address
Scott Teamer: CEO of ESI.

View details of ESI's Founder profiles and Board Members

ESI's employee count trend

ESI has 1,630 employees as of May 26. Here is ESI's employee count trend over the years:

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ESI has made 3 investments in companies including OmniGuide and Axsun Technologies. ESI has also acquired 2 companies including Visicon and EOLITE Systems.

Here is the list of investments & acquisitions:

Date of Investment/Acquisition	Type	Company Name	Founded Year	Location
Aug 02, 2016	Acquisition	Visicon	2001	Napa (United States)
Sep 26, 2013	Investments	OmniGuide	2000	Newton (United States)
Jun 19, 2012	Acquisition	EOLITE Systems	2004	Pessac (France)