Companies

Ogilvy PR is a global public relations and communications agency, part of the Ogilvy network, delivering integrated PR, influence, and reputation management services for major brands worldwide.

Ogury is a mobile advertising technology company that provides a privacy-focused platform for brands and publishers. They use contextual intelligence to deliver ads without relying on personal data, focusing on user consent and transparency. Their technology allows for precise targeting based on content and context.

Okendo is a customer marketing platform that helps e-commerce brands collect and display customer reviews, ratings, and user-generated content to drive conversions.

Okera was a data access and governance platform that enabled secure, policy-based access to data across cloud and on-premise environments before being acquired by Databricks in 2022.

Okta is an identity and access management platform that helps organizations securely connect the right people to the right technologies. It provides cloud-based solutions for user authentication, authorization, and identity lifecycle management.

Oktopost is a leading social media management platform specifically designed for B2B companies. It empowers businesses to manage, monitor, and measure their social media activities, focusing on lead generation, employee advocacy, and demonstrating ROI from social media efforts.

Visual commerce platform that enabled brands to collect, curate, and display user-generated content (UGC) for marketing and e-commerce purposes.

Top-3 global media-buying agency within Omnicom Media Group. Recognized as one of the most-awarded media agencies globally; sister network to PHD under OMG. Post-Omnicom-IPG merger (Nov 2025), OMD operates alongside PHD, Hearts & Science, UM, Initiative, and Mediahub under the unified Omnicom Media platform.

Omnicom Group is one of the world's largest advertising and marketing communications holding companies, operating a portfolio of leading agency brands across creative, media, PR, and specialty marketing services.

Omnicom Health Group is the world's largest healthcare marketing and communications network, delivering specialized health and wellness advertising solutions across the full spectrum of healthcare audiences.

Omnicom Media Group is a global media planning and buying agency network, part of Omnicom Group, operating major brands including OMD, PHD, and Hearts & Science.

Omnicom umbrella division for CRM/precision/data agencies; founded 2016. Houses Rapp, Credera, and Flywheel (pre-2025 reorg into Omnicom Media). Acronym: OPMG.

Omniconvert is a comprehensive growth platform designed for e-commerce businesses, offering tools to optimize customer journeys and boost conversions. It provides solutions for A/B testing, personalization, surveys, and advanced customer segmentation to enhance website performance and user experience.

Omnisend is a comprehensive omnichannel marketing automation platform specifically designed for ecommerce businesses. Founded in 2014 and headquartered in London, United Kingdom, the company provides integrated email and SMS marketing solutions that enable online retailers to create personalized customer experiences across multiple channels. The platform combines email marketing, SMS campaigns, web push notifications, and other communication channels into a unified system, allowing ecommerce ...

Onalytica was an influencer relationship management (IRM) platform that helped brands identify, analyze, and engage with key influencers across social media and digital channels.

OnAudience was a global data marketplace and DMP provider specializing in third-party audience segments for programmatic advertising, operating primarily across European and international markets.

Onavo was a mobile analytics + VPN company acquired by Facebook October 2013 (~$120M). Onavo Protect VPN gave Facebook competitive intelligence on user behavior across other apps — used to inform acquisition strategy (notably WhatsApp). Apple removed Onavo from the App Store August 2018 for violating data-collection policies. Facebook shut down Onavo entirely February 21, 2019 amid privacy backlash and FTC scrutiny.

Onclusive is a global PR analytics and media intelligence platform that helps communications professionals measure earned media impact and demonstrate PR ROI.

Cheil's MENA regional hub, headquartered in Dubai. Serves Samsung-Middle-East plus regional brand work. Slug includes "-uae" suffix to disambiguate from other "One Agency" naming collisions in the global agency landscape. Source: Cheil Sustainability Report 2014.

OneLogin is a cloud-based identity and access management (IAM) platform that provides single sign-on, multi-factor authentication, and user provisioning for enterprises.

OneSignal is a leading customer engagement platform that enables businesses to send targeted push notifications, in-app messages, email, and SMS. It helps developers and marketers engage their users across multiple channels to improve retention and drive growth for their applications and websites.

Header bidding and yield optimization platform for publishers, offering wrapper solutions and programmatic monetization tools. Provides advanced header bidding technology to maximize publisher revenue.

OneTrust is a leading privacy, security, and data governance software platform that helps organizations manage compliance with global privacy regulations including GDPR, CCPA, and cookie consent.