Display and video-focused ad network Altitude Digital has announced $5 million in funding from Mercato Partners, whose portfolio includes Fusion-io and Skullcandy.

According to the release, the Denver-based ad tech startup had been seeking growth capital. Now, Altitude Digital’s new funds will largely be used towards customer acquisition and marketing initiatives. More specifically, Altitude Digital says the investment will allow it to “optimize ad space and operations for online publishers while reaching new, untapped target markets.”

Altitude Digital details that its display and video ads process an average of 12 billion impressions per month. The company claims to “empower online publishers to maximize their revenue by optimizing their ad space and eliminating unnecessary ad operations costs with a full-scale Supply Side Platform.”

With this deal, Mercato Partners’ Alison Wistner and Greg Warnock are joining the company’s board of directors.

Image credit: Emma Weber