Online advertising · United States

The ranking of the best online advertising agencies in the United States

Independent ranking: Sortlist does not rank itself, and agencies cannot pay for their position in this ranking. Sponsored agencies are shown separately and clearly labelled.

Nicolas Finet

By , Co-founder & CEO of Sortlist · · How we ranked

Quantum IT Innovation is no. 1 because it has the largest review base in the US ranking (162 reviews rated 5/5) and the most published projects in the service (20).

No. 1 by score: Quantum IT Innovation

Quantum IT Innovation scores 100/100: 5 out of 5 from 162 reviews and 20 published projects. It is a 200-person Dallas IT firm covering web and app development, AI and digital marketing for B2B and B2C companies worldwide.

  1. 1
    Quantum IT Innovation logo

    Rank 1: Quantum IT Innovation

    100/100

    • 5.0/5 (162 reviews)
    • Dallas, United States
    • from €1,000
    • 200 people
    • 20 published projects in this service

    Ideal for a company that wants online advertising bundled with web, app or AI development from one large team, with projects from €1,000.

    IT firm covering web and app development, AI and digital marketing for B2B and B2C

    Why #1?

    • Quantum IT Innovation is no. 1 because it has the largest review base in the US ranking (162 reviews rated 5/5) and the most published projects in the service (20).

    Score breakdown: rating 100/100 · review volume 100/100 · published work 100/100

    Less suited if you want an advertising-only specialist: 16 of its 162 reviews describe advertising work, against 28 of 31 at DASH TWO, a media buying agency.

    View Quantum IT Innovation’s profile

The 10 agencies with the highest score

A woman with glasses writing notes in front of a laptop in an office
Write down the goal, the audience and the monthly budget before you ask for proposals.Photo by Vitaly Gariev on Pexels (Pexels License).

Sorted by score. The “reviews about advertising” column shows how many of each agency’s reviews describe it: the score measures overall track record, that column measures specialisation.

online advertising agencies in the US with the highest Sortlist score
#AgencyScoreRatingReviews about advertisingFrom
1Quantum IT Innovation – Dallas · IT firm covering web and app development, AI and digital marketing for B2B and B2C100/1005.0 (162)16 of 162€1,000
2Elit-web – Schaumburg · Performance-driven digital marketing: leads, ROI and revenue, 12+ years84/1005.0 (25)16 of 25€1,000
3DASH TWO – Inglewood · Digital and outdoor advertising media buying agency in Los Angeles83/1004.99 (31)28 of 31€3,000
4BERK Labs – Houston · Full-service PPC marketing agency80/1005.0 (9)6 of 9€1,000
5Prime Clicks – Glenvar Heights · Amazon marketing agency and e-commerce growth partner79/1005.0 (9)4 of 9€1,000
6Garraje – Miami · 360° digital, PR and marketing agency based in Istanbul, Miami, Dubai and Casablanca78/1005.0 (11)5 of 11€3,000
7CUT THRU – Brooklyn · Boutique branding agency named best of the year at the Netty Awards 2023 and 202477/1005.0 (96)3 of 96€1,000
8Ranxy – San Francisco · Marketing agency built exclusively for financial brands: brokers, crypto, fintech and banks74/1005.0 (54)49 of 54€1,000
9RSXigital – Chicago · B2B lead generation and performance marketing across the US, Canada and the UK73/1005.0 (21)4 of 21–
10Good Kids – Los Angeles · Independent agency in Los Angeles, New York and Toronto creating campaigns that connect with audiences72/1005.0 (6)3 of 6€10,000

Score of the 10 highest-ranked agencies

Score out of 100 for each agency, calculated from rating (50%), review volume (30%) and published projects (20%).

  • Quantum IT Innovation100
  • Elit-web84
  • DASH TWO83
  • BERK Labs80
  • Prime Clicks79
  • Garraje78
  • CUT THRU77
  • Ranxy74
  • RSXigital73
  • Good Kids72
Show the data as a table
Categorypoints
Quantum IT Innovation100
Elit-web84
DASH TWO83
BERK Labs80
Prime Clicks79
Garraje78
CUT THRU77
Ranxy74
RSXigital73
Good Kids72

How the score is calculated

A woman drinking tea while looking at a design page on a laptop
Each score can be reproduced from the data on the agency’s profile.Photo by Startup Stock Photos on Pexels (Pexels License).

Of the 2,460 providers Sortlist lists for this search, we evaluated 223 profiles (the first pages of the listing). 52 have a US office and at least 3 verified reviews, and 21 of them also have at least 3 reviews that describe advertising work (profiles that are mostly book publishers are set aside): those are scored. The 3 sponsored agencies (Fellow Partners and Rex Automaton and Sellucent) paid for visibility and are excluded.

A script calculates the score out of 100 with the same formula for every agency: average rating (50%), number of reviews on a log scale (30%) and projects published in the service (20%). The order is never adjusted by hand.

Independent ranking: Sortlist does not rank itself, and agencies cannot pay for their position. Listing order and sponsored placements play no part.

Reviews come from verified Sortlist clients. The 27 other agencies on the listing appear in the link list. A high score reflects track record, not that the agency is the best fit for your specific project.

Other agencies evaluated (27)

Agencies on the Sortlist listing that are not in the table: they have a lower score or do not meet the criteria.

Creative Web Guys · Monzix · Fyncoder · SparkX Marketing LLC · Offshore Marketers · Snow Monkey · WebAppsWorld · Division of Labor SF · instafollower · American Wiki Pro · Adsy · Boundify · Delante SEO/SEM Agency · NinjaPromo · Acevox · SWC Partnership · 42DM · ConTesta · Probey Services · Incrementors · iDigitalise.net☑️ · JG Digital Agency · Acclaro · Excella PPC · Scopic Software & Scopic Studios (Marketing Agency) · Transformed Design Inc. · Harrington Clark

About the author: Nicolas Finet

Nicolas Finet

About the author:

Co-founder and CEO of Sortlist. An entrepreneur passionate about B2B marketing and about helping companies grow, he has been connecting companies with the right marketing agencies across Europe since 2014. His focus: digital strategy, business development and scaling B2B marketplaces. He oversees this methodology and the data behind every Sortlist ranking.

LinkedIn · X (@nifinet)

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Frequently asked questions

How much does a online advertising agency cost?

Of the 184 agencies evaluated in the US, 162 state a minimum project budget and 94 start at €1,000. That is the entry point for a first project, not a monthly fee: ask for a quote broken down by line.

What should I ask an online advertising agency?

Which platforms it has run for businesses like yours, the return on ad spend it achieved on two comparable accounts, who owns the ad accounts and tracking pixels, whether its fee is flat or a percentage of spend, and the budget at which it starts testing creative.

Why can a generalist agency rank first?

The score rewards rating, number of reviews and published projects, not specialisation alone. To see who is most specialised, read the reviews column: Division of Labor SF (3 of 3) has the most.