Company lists · Data refreshed September 2026

Top 25 Startup marketing agencies based in Indianapolis, United States

RevenueBase identified 119 startup marketing agencies headquartered in Indianapolis, United States as of September 2026 and tracks 727 professional contacts across them, including 245 with verified work emails. New York is the largest hub.

This list covers startup marketing agencies headquartered in Indianapolis, 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 6, 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 6, 2026 86% judged on-target in blind review
119Companies
727Contacts tracked
245Verified emails
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The 25 largest startup marketing agencies based in Indianapolis, United States

Ranked by team size
Top 25 of 119 startup marketing agencies based in Indianapolis, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to startup marketing agencies: 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 evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202651-200103 contacts →

Marketing leaders are juggling too many agencies, too many handoffs, and too much complexity.”

Source: company website · checked Sep 6, 2026
2Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202651-20051 contacts →

“JDA Worldwide is a full-service marketing and communications agency serving national, emerging, and category-leading brands since 2003.”

Source: company website · checked Sep 6, 2026
3Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202611-5025 contacts →

“Williams Randall Advertising is a full-service marketing and advertising agency with our office in Indianapolis, Indiana.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202611-5022 contacts →

“We create stronger connections between brands and their audiences, building engaged communities of advocates and enthusiasts.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202611-5018 contacts →

“At Collective Alternative, we live in a constant state of WHY?”

Source: company website · checked Sep 6, 2026
6Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202611-5014 contacts →

“Green Loop Marketing is a boutique marketing agency specializing in getting local businesses noticed.”

Source: company website · checked Sep 6, 2026
7Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-1012 contacts →

“Cortland Consulting is a brand strategy and marketing studio”

Source: company website · checked Sep 6, 2026
8Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202611-5012 contacts →

“SteerPoint is a full-service Digital Marketing Agency providing an array of professional marketing services including search engine optimization (SEO), social media, PPC, Web…”

Source: company website · checked Sep 6, 2026
9Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-109 contacts →

“For 40 years, we've helped brands make their mark.”

Source: company website · checked Sep 6, 2026
10Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-108 contacts →

“Elevated Marketing Solutions is a company built on honesty and integrity.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202611-508 contacts →

“KM & A identifies strengths and recognizes vulnerabilities.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-107 contacts →

“The Flatland is an independent advertising agency in Indianapolis, Indiana.”

Source: company website · checked Sep 6, 2026
13Partial evidenceIndianapolis, United StatesHQ checked Sep 6, 202611-507 contacts →

“EverEffect is a full-service digital marketing company.”

Source: company website · checked Sep 6, 2026
14Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-106 contacts →

“FlyDog Digital is a boutique digital marketing agency for wellness and hospitality brands - the businesses built around people, experiences, and places that matter.”

Source: company website · checked Sep 6, 2026
15Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202611-506 contacts →

“Argona Partners is a globally recognized Strategy Consulting and Startup Development firm dedicated to shaping the future by empowering entrepreneurs and founders to achieve…”

Source: company website · checked Sep 6, 2026
16Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-104 contacts →

“Kalop Marketing, located in Indianapolis, Indiana, offers a wide-range of creative and innovative marketing solutions for small to medium-sized businesses, including: • marketing…”

Source: company website · checked Sep 6, 2026
17Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-103 contacts →

“Muse Street Marketing is your business’s boutique marketing partner offering full-spectrum services including brand design, marketing strategy consulting, custom website design…”

Source: company website · checked Sep 6, 2026
18Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-103 contacts →

“Unlock your brand’s potential with Absorb Studios, Indiana’s premier full-service digital marketing agency.”

Source: company website · checked Sep 6, 2026
19Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-103 contacts →

“We’re a strategic marketing firm that specializes in Big Ideas.”

Source: company website · checked Sep 6, 2026
20Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-102 contacts →

“MondoVox® Marketing is an agency focused on digital marketing, sales and promotional collateral, advertising, branding, and interactive.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-102 contacts →

“Matinee is a branding firm in Indianapolis, Indiana.”

Source: company website · checked Sep 6, 2026
22Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-102 contacts →

“Circle City Digital is a one-stop Indianapolis Web Design company for everything marketing.”

Source: company website · checked Sep 6, 2026
23Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-102 contacts →

“Lumbre Media is a boutique agency driven by a passion to elevate mission-driven brands and businesses through strategic, creative content and digital marketing solutions that…”

Source: company website · checked Sep 6, 2026
24Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-102 contacts →

“Digital marketing consulting and services for SEO, PPC, and content.”

Source: company website · checked Sep 6, 2026
25Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 20261-102 contacts →

“Kelly O'Neill is a marketing consultant for entrepreneurs who are ready to position themselves as experts in their industry using online strategies to generate revenue, attract…”

Source: company website · checked Sep 6, 2026

Showing 25 of 119 startup marketing agencies based in Indianapolis, United States

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Startup marketing agencies based in Indianapolis, United States at a glance

As of Sep 6, 2026
33.7%Verified-email coverage
6.1Average contacts per company
1-10Median size (employees)
1247.1%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
96
11-50
19
51-200
4

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Indianapolis, over 119 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 startup marketing agencies, 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 Indianapolis, United States whose own description of what they do matches “startup marketing agencies”. 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 startup marketing agencies), 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 startup marketing agencies, and records with no verified work email. Companies headquartered outside Indianapolis 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, 245 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 6, 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.

Startup marketing agencies 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 startup marketing agencies, 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 startup marketing agencies are there based in Indianapolis, United States?

RevenueBase identified 119 startup marketing agencies headquartered in Indianapolis, 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?

Trendyminds, headquartered in Indianapolis, tops this list with the largest team on record.

Which city has the most startup marketing agencies?

New York leads with 1484 headquartered companies, followed by Los Angeles (1079) and Miami (760).

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 245 verified decision-maker contacts tracked across these 119 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 6, 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.