Markos

Mark OS (MarkOS, markos.ai) is a Seattle-based software company whose platform applies AI to review marketing and brand content before and after it goes live. The product scores assets such as digital ads, videos, product pages, and websites on a quality score and flags content that is off-brand, legally non-compliant, or misaligned with platform best practices. Capabilities described by the company include pre-launch checks, always-on monitoring of ad platforms, partner websites, and creator feeds, benchmarking of creative quality scores against competitors' live content, filtering by the most frequent and urgent compliance issues, and scoring content quality by team across brand, legal, and performance dimensions.

At launch the company described software that continuously audits an organization's brand assets — photos, videos, text, and more — and that can also assist in creating those assets. Management framed the problem as a consequence of generative AI enabling non-specialists to produce copy, photography, and design, which organizations fear will increase the volume of non-compliant content.

Founding story

MarkOS was co-founded by Marius Ciocirlan, David Dawson, and Wesley Yun. Ciocirlan, the CEO, was previously managing director at Techstars Seattle before the accelerator shut down, and earlier co-founded ShareGrid, a marketplace for filmmakers and photographers to rent and sell equipment that was acquired by Backstage; he also worked as a product designer for Groupon, Kromatic Entertainment, and Samsung. Dawson co-founded the recycling startup Ridwell, was an early engineer at Zillow, and co-founded Stash, a loyalty reward startup for independent hotels. Yun was formerly head of design at Asana and worked on the WebOS operating system at Palm, with design leadership roles at Samsung, Lytro, GoPro, and Uber Freight.

Business model

Enterprise software sold to brand and marketing organizations; the website directs prospective customers to schedule a demo to obtain access to the platform.

Traction

The website names Almave, a non-alcoholic blue-agave spirit brand co-founded by Lewis Hamilton; The King's Trust Group, a global network of charities founded by His Majesty The King addressing youth unemployment; and Suntory, a global beverage company whose spirits portfolio includes Jim Beam, Maker's Mark, and Laphroaig, and states it works with additional customers across industries.

Latest developments

As of 2025 the company promotes Mark OS publicly, states it raised $4.1M to speed up marketing teams, and is recruiting through a careers page.