Company lists · Data refreshed September 2026

Top 10 Lead qualification call centers based in Miami, United States

RevenueBase identified 45 lead qualification call centers headquartered in Miami, United States as of September 2026 and tracks 1,227 professional contacts across them, including 37 with verified work emails. New York is the largest hub.

This list covers lead qualification call centers headquartered in Miami, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 15, 2026 86% judged on-target in blind review
45Companies
1,227Contacts tracked
37Verified emails
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The 10 largest lead qualification call centers based in Miami, United States

Ranked by team size
Top 10 of 45 lead qualification call centers based in Miami, United States, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to lead qualification call centers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceMiami, FL, United StatesHQ checked Sep 15, 2026201-5001,068 contacts →

Partial evidence

“CIENCE Technologies, Inc, founded in 2015 and headquartered in Denver, CO, is a pioneering global company in lead generation software and services, committed to transforming the…”

Source: RevenueBase Database · checked Sep 15, 2026
2Partial evidenceMiami, FL, United StatesHQ checked Sep 15, 202611-5014 contacts →

Partial evidence

“We are a team full of marketers, designers, and programmers doing Performance Marketing better than anyone in the business, We find LIVE leads who are ready and actively looking…”

Source: RevenueBase Database · checked Sep 15, 2026
3Partial evidenceMiami, FL, United StatesHQ checked Sep 15, 202611-5012 contacts →

Partial evidence

“Innovation Direct Group (IDG) is a full-service lead generation agency focused on "owned and operated" media with performance that delivers the highest intent consumers in a…”

Source: RevenueBase Database · checked Sep 15, 2026
4Partial evidenceMiami, FL, United StatesHQ checked Sep 15, 202611-507 contacts →

Partial evidence

“Vrand es la agencia líder en generación de leads B2B en LATAM, especializada en impulsar el crecimiento de empresas del sector tecnológico.”

Source: RevenueBase Database · checked Sep 15, 2026
5Partial evidenceMiami, United StatesHQ checked Sep 15, 20261-105 contacts →

Partial evidence

“We generate and qualify leads, so you don't waste your time on junk leads.”

Source: RevenueBase Database · checked Sep 15, 2026
6Indirect evidenceMiami, FL, United StatesHQ checked Sep 15, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
7Partial evidenceMiami, FL, United StatesHQ checked Sep 15, 20261-104 contacts →

Partial evidence

“We saw the pitfalls in the way lead generators operate – the sale of a single lead to several vendors, the lack of filtering to ensure valid lead contact information, and…”

Source: RevenueBase Database · checked Sep 15, 2026
8Strong evidenceMiami, FL, United StatesHQ checked Sep 15, 202611-503 contacts →

Strong evidence

“Home Direct Marketing, a proud Connection Holdings company, is a leading provider of high-quality, compliant leads for call centers and businesses across a variety of industries.”

Source: RevenueBase Database · checked Sep 15, 2026
9Partial evidenceMiami, FL, United StatesHQ checked Sep 15, 20261-103 contacts →

Partial evidence

“Callwise.io is a SaaS platform that invented a cross-channel trigger called Tele-mail™ that sends an inbound call to sales reps after an event like E-mail open, link click, web…”

Source: RevenueBase Database · checked Sep 15, 2026
10Partial evidenceMiami, FL, United StatesHQ checked Sep 15, 20261-101 contacts →

Partial evidence

“Bongoze delivers warm lead transfers through outbound calling.”

Source: RevenueBase Database · checked Sep 15, 2026

Showing 10 of 45 lead qualification call centers based in Miami, United States

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Lead qualification call centers based in Miami, United States at a glance

As of Sep 15, 2026
3.0%Verified-email coverage
27.3Average contacts per company
11-50Median size (employees)
120.0%Largest-city concentration · New York
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
17
51-200
5
201-500
3
501-1,000
1

Email recency for this list is measured across the whole United States list rather than for Miami, so it is reported there. Company counts and contact totals on this page are exact for Miami, over 45 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among lead qualification call centers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

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.
What qualifies
Companies headquartered in Miami, United States whose own description of what they do matches “lead qualification call centers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names lead qualification call centers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among lead qualification call centers, and records with no verified work email. Companies headquartered outside Miami are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 37 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 15, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Lead qualification call centers by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names lead qualification call centers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many lead qualification call centers are there based in Miami, United States?

RevenueBase identified 45 lead qualification call centers headquartered in Miami, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Cience, headquartered in Miami, tops this list with the largest team on record.

Which city has the most lead qualification call centers?

New York leads with 54 headquartered companies, followed by Los Angeles (45) and Miami (45).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 37 verified decision-maker contacts tracked across these 45 companies.

How current is this list?

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