Lookalikes · Data refreshed October 2026

25 GCL lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 333 matching companies

Looking for GCL lookalikes, GCL competitors or GCL alternatives? The RevenueBase company graph holds 333 companies that do what GCL does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 333 matches RevenueBase tracks 4,764 professional contacts, including 540 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 GCL and ranks them by company size. Data current as of October 16, 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 16, 2026 Match quality audited by blind human judging

Reference company

GCL

“GCL, with its unique, non-scripted approach to telemarketing and related marketing services, has for over 30 years established an enviable reputation for providing winning lead…”

51-200Employees

22Contacts tracked

1Verified emails

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The 25 largest GCL competitors and alternatives

Ranked by team size

Top 25 of 333 companies matching GCL at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to GCL (100% = identical). Data refreshed Oct 16, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Inventive SMI	IN	201-500	87%	18 contacts →
2	The Telemarketing Company	Brighton, GB	201-500	86%	45 contacts →
3	BALAT	Capital Federal, AR	201-500	85%	18 contacts →
4	AIR Marketing	Exeter, GB	51-200	88%	43 contacts →
5	3tec Solutions	Los Angeles, US	51-200	87%	9 contacts →
6	Lead Crafts Media	Mumbai, IN	51-200	86%	11 contacts →
7	Metanova Tech Pvt. LTD	Deira, AE	51-200	86%	2 contacts →
8	Advance Connects	Ellesmere Port, GB	51-200	90%	23 contacts →
9	Marathon B2B	Pune, IN	51-200	90%	1 contacts →
10	Parallel Partnerships LTD	Leeds, GB	51-200	90%	17 contacts →
11	VSA Prospecting	Westmont, US	51-200	89%	6 contacts →
12	Beanstalk Marketing	Southend On Sea, GB	11-50	92%	32 contacts →
13	Tactical Telesolutions	Walnut Creek, US	51-200	88%	10 contacts →
14	Findbusiness	Eindhoven, NL	11-50	86%	14 contacts →
15	Uniaq AG	Heidelberg, DE	11-50	92%	25 contacts →
16	TELUP	Montreal, CA	11-50	86%	9 contacts →
17	IT Focus Telemarketing LTD	Bradford On Avon, GB	11-50	88%	13 contacts →
18	The Lead Generation Company	Glasgow, GB	11-50	86%	10 contacts →
19	The Lead GEN Specialists	Witham, GB	11-50	87%	9 contacts →
20	Paragon Marketing Projects	Portsmouth, GB	51-200	85%	22 contacts →
21	SLM Connect	Manchester, GB	201-500	86%	1 contacts →
22	Demand Drive Solutions PVT LTD An ISO 27001 2022 Certified Company	Sheridan, US	11-50	86%	1 contacts →
23	Maven TM	Carlow, IE	11-50	88%	9 contacts →
24	Ventes B2B Technologies INC	Great Neck, US	51-200	86%	5 contacts →
25	Blue Donkey LTD	Soham Ely, GB	11-50	89%	5 contacts →

Showing the 25 largest of 333 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 GCL, 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 GCL 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 16, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are GCL lookalikes?

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

What companies are similar to GCL?

The largest companies similar to GCL are Inventive SMI, The Telemarketing Company, BALAT and AIR Marketing. The table above shows the 25 largest of the 333 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 GCL'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 540 verified emails and direct dials tracked across all 333 matched companies.

Who are GCL's biggest competitors?

The largest GCL competitors by measured business-description similarity are Inventive SMI, The Telemarketing Company, BALAT and AIR Marketing. Every company here does what GCL does at 85%+ similarity, ranked by team size.

What are the best GCL alternatives?

The closest GCL alternatives are the companies whose own business descriptions match GCL'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 16, 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.