Lookalikes · Data refreshed October 2026

25 I-Sys Corp lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 15, 2026 6365 matching companies

Looking for I-Sys Corp lookalikes, I-Sys Corp competitors or I-Sys Corp alternatives? The RevenueBase company graph holds 6365 companies that do what I-Sys Corp does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 6365 matches RevenueBase tracks 155,835 professional contacts, including 48,711 with verified work emails.

Similarity is measured on what companies actually do, from their business descriptions rather than industry codes, and is shown per row as a percentage. This page keeps only companies at 85%+ measured similarity to I-Sys Corp and ranks them by company size. Data current as of October 15, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list Similarity shown on every row Refreshed Oct 15, 2026 Match quality audited by blind human judging

Reference company

I-Sys Corp

“i-sys has been acquired by SDI Presence!”

51-200Employees

14Contacts tracked

0Verified emails

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The 25 largest I-Sys Corp competitors and alternatives

Ranked by team size

Top 25 of 6365 companies matching I-Sys Corp at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to I-Sys Corp (100% = identical). Data refreshed Oct 15, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Convergint	Hoffman Estates, US	10001+	89%	3,316 contacts →
2	SIBCA	Abu Dhabi, AE	1,001-5,000	86%	599 contacts →
3	Strong Segurança, S.A	Amadora, PT	5,001-10,000	86%	110 contacts →
4	Bahri & Mazroei Technical Systems Company LLC Bmts	AE	1,001-5,000	88%	141 contacts →
5	PCSS	Singapore, SG	501-1,000	89%	63 contacts →
6	Tech Electronics	St. Louis, US	201-500	85%	230 contacts →
7	Trinity Fire & Security Systems	Exeter, GB	501-1,000	88%	199 contacts →
8	Kings Secure Technologies	Bradford, GB	501-1,000	85%	172 contacts →
9	Firepro Systems	Bengaluru, IN	201-500	89%	23 contacts →
10	JBK Controls - Qatar	Doha, QA	501-1,000	85%	10 contacts →
11	Ezone Security Solutions Pvt. LTD	Hyderabad, IN	201-500	86%	10 contacts →
12	Evolution Electronic Security Systems LTD	Marlow, GB	201-500	85%	153 contacts →
13	Etechs-Industrial Safety & Security Sector Isss	Jubail Industrial City, SA	1,001-5,000	86%	50 contacts →
14	Nextgen Security	Exton, US	201-500	85%	161 contacts →
15	Infiniti Building Solutions PVT LTD	Hyderabad, IN	51-200	89%	12 contacts →
16	IB Tecnologia E Sistemas	n/a	51-200	87%	36 contacts →
17	Senseco Systems Limited	Gillingham, GB	201-500	86%	78 contacts →
18	Systech Solutions Pune	Pune, IN	201-500	86%	2 contacts →
19	Colsys S.R.O	CZ	201-500	85%	71 contacts →
20	ESEC	Ahmedabad, IN	51-200	88%	5 contacts →
21	Apilog Automation	Massy, FR	51-200	88%	72 contacts →
22	Total Integrated Solutions TIS LTD	Mansfield, GB	51-200	88%	67 contacts →
23	Eurocontrolli	Abu Dhabi, AE	51-200	85%	52 contacts →
24	Veolink Sistemas Integrados DE Segurança Eletronica	Belo Horizonte, BR	501-1,000	86%	45 contacts →
25	ISF SFP PTY LTD	Johannesburg, ZA	51-200	88%	41 contacts →

Showing the 25 largest of 6365 similar companies

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How similarity works

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Matching: Companies are matched on what they actually do, as described in their own business descriptions, never on shared industry codes. The list keeps only matches at 85%+ measured similarity to I-Sys Corp, and match quality is audited by blind human judging. Read the full methodology.
Ranking: Team size, largest first, among the matched companies: companies are ordered by the number of professionals RevenueBase tracks at each one. Each row also shows its measured similarity to I-Sys Corp as a percentage.
Verification: Contact records re-verify on a rolling cadence rather than being scraped once and left to decay; each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 15, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are I-Sys Corp lookalikes?

I-Sys Corp lookalikes are companies that closely resemble what I-Sys Corp does and sells, based on each company's own business description. The table above ranks the closest matches by company size, with each company's similarity to I-Sys Corp shown as a percentage.

What companies are similar to I-Sys Corp?

The largest companies similar to I-Sys Corp are Convergint, SIBCA, Strong Segurança, S.A and Bahri & Mazroei Technical Systems Company LLC Bmts. The table above shows the 25 largest of the 6365 matched companies, with each row's similarity shown as a percentage.

How is similarity measured?

Similarity scores how closely a company's business, as described in its own words, matches I-Sys Corp's, shown as a percentage (100% = an identical description). The list keeps companies at 85% or above and ranks them by team size.

How do I get contacts at these companies?

A free RevenueBase account lets you run this exact search and work the top matches, verified emails and direct dials included. Upgrading unlocks the 48,711 verified emails and direct dials tracked across all 6365 matched companies.

Who are I-Sys Corp's biggest competitors?

The largest I-Sys Corp competitors by measured business-description similarity are Convergint, SIBCA, Strong Segurança, S.A and Bahri & Mazroei Technical Systems Company LLC Bmts. Every company here does what I-Sys Corp does at 85%+ similarity, ranked by team size.

What are the best I-Sys Corp alternatives?

The closest I-Sys Corp alternatives are the companies whose own business descriptions match I-Sys Corp's most closely, shown above with each one's similarity as a percentage and ranked by team size.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 15, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.