For something in its infancy (both literally, and in dollar terms), mobile advertising makes a lot of noise. It’s suddenly a required part of every digital ad package, and traditional agencies are scrambling to work up their own mobile offerings. In the trendy world of app building, nascent efforts at mobile display ads and transaction-based mobile platforms may have generated only $550 million to $650 million in revenue last year, according to the Interactive Advertising Bureau—compare that with the larger category of online advertising, which brought in $26 billion—but it’s growing fast. Last year’s revenue in the category was roughly 30 percent higher than 2009’s, and BIA/Kelsey predicts the market will swell to $2.9 billion by 2014.
The average U.S. advertiser reserves around 2 percent to 5 percent of its overall ad budget for mobile apps, according to Kai Buehler, CEO of Mobile Messaging Solutions. While that money previously came out of the digital pool, Buehler said it’s increasingly common for advertisers to dedicate a budget and even an in-house position to the category.
But even as mobile devices evolve at an ever more rapid pace—including the introduction of tablets—mobile advertising is still deciding what, exactly, it is. What advertisers have learned is that a mobile campaign isn’t as simple as cramming a display ad into a smartphone. “Brands don’t just want ads in an app experience,” says Steven Golus, general manager of mobile at DataXu. “They want cross-selling, m-commerce, and in-store advertising.”
They also want exciting creative, and to enhance a customer’s experience in their stores with apps utilizing geo-tagging, for example. And as anyone who has used an iPad or Xoom can testify, the proliferation of high-definition tablets allows for high-quality display ads.
But many brand managers, as well as the creative at traditional agencies, are still far from mobile savvy. That’s where the agencies on our list come in. These shops, devoted exclusively to mobile advertising, are among a selection of agencies as steeped in digital technology as they are creative. While some have been around for a decade or more, it’s “still the early days [of mobile],” says Mark Mackenzie, head of digital media venture capital at AllianceBernstein. “The pieces aren’t all there—the analytics, the data. [But they’re] being built out.”
5th Finger 
The San Francisco-based mobile firm has launched more than 5,000 campaigns since its genesis in 1999. And no, that year is not a typo. 5th Finger has been at it since the days of Zach Morris’s brick-like mobile phone. It’s kept up, of course, with the song-recognizing, GPS-enabled, video-recording mini-computer times, and now focuses on the retail, consumer packaged-goods, and health sectors. It raised $7 million in venture backing from Starfish Ventures in 2008; the firm is also partially owned by Microsoft through its parent company, Ninemsn. Clients include Victoria’s Secret, My Coke Rewards, Safeway, and Bath & Body Works.
Mobients has been designing mobile apps for complex interactions since before the iPhone. The Atlanta-based agency’s pre-iPhone mobile banking apps were adopted by Wachovia, Citigroup, and 40 other banks, and later ported into iPhone as the first app of its kind. Now its offerings span operating systems: the shop created a mobile site for Verizon designed to attract users surfing the Web on non-Verizon phones. It’s also created a usability assessment program for AT&T, and a mobile retail system for Home Depot. Mobients was founded in 2007 by former BMX racer Matthew Perry; the company’s employees call themselves “scalability ninjas.”
Founded in Paris in 2001 by Alexandre Mars, Phonevalley prefers to work on mobile campaigns that are closely tied to advertisers’ Web work. Mars has decried “innovation for the sake of innovation” without identifying milestones for a mobile campaign. An augmented reality app without a concrete engagement goal, for example, does not equal a marketing campaign. In 2007, the agency—which also operates from Chicago and Singapore—was bought by Publicis Groupe; Mars was promoted to head of mobile at the holding company. Phonevalley’s offerings include mobile media planning, and its clients have included Nissan, Purina, and H&M.
This shop made a splash in 2008 with its Kraft iFood Assistant app; its clients have grown to include Intel, Nestlé’s Gerber, Coca-Cola, Trojan, Adidas, Taco Bell, and AB InBev. In 2009, The Hyperfactory sold a 20 percent stake to magazine publisher Meredith Corp. for $4.5 million; a year later Meredith bought the agency’s remaining shares for $16.2 million. At the time, founders, brothers, and poker enthusiasts Derek and Geoffrey Handley said the sale to a content-focused parent company legitimized The Hyperfactory’s role as a strategic agency, counteracting dismissals that the firm was all creative and no method. Started in 2001, The Hyperfactory has more than 100 employees in New York; Auckland, New Zealand; Sydney, Australia; and Hyderabad, India.
Calling its campaigns “highly social, mobile, and interactive brand experiences,” Marvellous’s work for clients like Timberland, Nokia, and the Museum of London are driven by humor and design. The London-based company was acquired by Aegis Group shortly after its founding in 2007.
London-based Ringring, founded in 2008, specializes in “moving beyond the simple clickable banner and text ads,” delivering pre-roll, sponsorships, in-app, and in-game ads in more than 170 countries. Last year, the agency sold to Amobee Media Systems for $20 million. Clients include Nokia, Google, Yahoo, and AdMob.
A multi-tasking shop, Ipsh offers m-commerce, advertising, engagement, and mobile social commerce. The San Francisco Omnicom subsidiary is responsible for bringing Bud Light’s “Real men of genius” campaign to cell phones.
YOC Group 
The publicly traded agency, based in the U.K., entered mobile advertising in 2009 with its acquisition of Bluestar Mobile. This year, YOC Group has added a mobile campaign management platform and location-based advertising capabilities, in addition to international acquisitions. Clients include Coca-Cola.
The creative-driven agency operates independently as a division of Kinetic Worldwide, a WPP joint venture. Its mantra to clients: “Stop doing ads that just sit there.” The two-year-old shop has worked with the clients of WPP subsidiaries Mindshare, MediaCom, Maxus, and Kinetic.
IPG’s mobile agency specializes in the retail, healthcare, and technology industries. It has offices in New York and San Francisco, and makes QR codes and augmented reality apps in addition to the standard mobile fare.
Serial entrepreneur Declan Reddington launched the London-based agency last year to strategize, create, and plan mobile marketing for brands. In just a year, the firm has amassed a roster of big-name clients like Universal Music Group, Krispy Kreme, Hotels.com, and Expedia.com.
Its offerings range from apps, mobile websites, ticketing, and coupons, to basic SMS dispatches and interactions. Munich, Germany-based 12snap has worked with Coca-Cola, Lufthansa, McDonald’s, MTV, Procter & Gamble, Sony PlayStation, Unilever, Vodafone, and Wrigley.
The nine-year-old shop’s campaigns integrate the offerings of subsidiaries, which focus on design, interface, R&D, and new media formats. In 2007, the Berlin-based firm sold a 40 percent stake to WPP.
Active since 2001 in Stockholm, Sweden, the shop’s campaigns have appeared in some 72 countries. In March, Mobiento’s Volkswagen app gained attention for its print tie-in—the app lets a user “drive” a car on a “road” by putting an iPhone over the page.
With clients in South America, Mexico, the U.S., and Europe, Mobext’s next frontier is Asia—the Havas Media-backed firm announced plans this month to open offices in India, China, and the Philippines. Clients include Nike, Dior, Amtrak, and McDonald’s.
We Love Mobile 
The U.K. shop’s notable campaigns include a technological update to the music-recognizing Shazam app, the mobile music store for Orange, and Fanta’s free phone credit campaign. The firm was acquired by marketing agency BD Network in 2010.