Lookalikes · Data refreshed October 2026

25 Nostra lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 15, 2026 5721 matching companies

Looking for Nostra lookalikes, Nostra competitors or Nostra alternatives? The RevenueBase company graph holds 5721 companies that do what Nostra does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 5721 matches RevenueBase tracks 87,361 professional contacts, including 32,087 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 Nostra 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

Nostra

“Nostra was established in 2006 and in that time has become one of Ireland’s most trusted providers of Managed IT and Cyber Security Services for a wide range of sectors.”

201-500Employees

275Contacts tracked

202Verified emails

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The 25 largest Nostra competitors and alternatives

Ranked by team size

Top 25 of 5721 companies matching Nostra at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Nostra (100% = identical). Data refreshed Oct 15, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	OPTIV	Leawood, US	1,001-5,000	85%	1,342 contacts →
2	Synoptek	Costa Mesa, US	1,001-5,000	85%	659 contacts →
3	MTI	Staines-Upon-Thames, GB	201-500	88%	77 contacts →
4	IT Solutions	Fort Washington, US	501-1,000	88%	237 contacts →
5	Softcell Technologies Global Pvt. LTD	Kurla W Mumbai, IN	501-1,000	88%	39 contacts →
6	Ultraviolet Cyber	Mclean, US	501-1,000	85%	270 contacts →
7	NIC	Los Angeles, US	n/a	87%	16 contacts →
8	Lucidity Cloud Services	Auckland, NZ	n/a	86%	19 contacts →
9	Blue Mantis	Portsmouth, US	201-500	91%	266 contacts →
10	Maintech, Incorporated	Clark, US	501-1,000	87%	235 contacts →
11	Paramount Computer Systems	AE	201-500	87%	120 contacts →
12	Ntiva, INC	Mclean, US	501-1,000	88%	382 contacts →
13	Securityhq	Gb, GB	501-1,000	85%	283 contacts →
14	Vc3	Columbia, US	501-1,000	90%	311 contacts →
15	Protechmanize	Thane, IN	501-1,000	88%	71 contacts →
16	Meriplex	Houston, US	501-1,000	89%	322 contacts →
17	PT Itsec Asia TBK	Jakarta Selatan, ID	201-500	86%	53 contacts →
18	Safeway	Sao Paulo, BR	201-500	86%	10 contacts →
19	Fourth Dimension Technologies	Chennai, IN	501-1,000	86%	25 contacts →
20	Dyopath	Houston, US	501-1,000	88%	208 contacts →
21	Computer Solutions	San Antonio, US	51-200	87%	67 contacts →
22	IBN Technologies	Miami, US	51-200	85%	116 contacts →
23	BOXXE	Hemel Hempstead, GB	201-500	87%	273 contacts →
24	Centorrino Technologies	Coburg, AU	201-500	86%	230 contacts →
25	Total Information Management Corporation	Makati City, PH	201-500	87%	119 contacts →

Showing the 25 largest of 5721 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 Nostra, 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 Nostra 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 Nostra lookalikes?

Nostra lookalikes are companies that closely resemble what Nostra 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 Nostra shown as a percentage.

What companies are similar to Nostra?

The largest companies similar to Nostra are OPTIV, Synoptek, MTI and IT Solutions. The table above shows the 25 largest of the 5721 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 Nostra'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 32,087 verified emails and direct dials tracked across all 5721 matched companies.

Who are Nostra's biggest competitors?

The largest Nostra competitors by measured business-description similarity are OPTIV, Synoptek, MTI and IT Solutions. Every company here does what Nostra does at 85%+ similarity, ranked by team size.

What are the best Nostra alternatives?

The closest Nostra alternatives are the companies whose own business descriptions match Nostra'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.