# Lower Cross > Lower Cross is a private growth office in Greenwich, CT: one senior partner for paid media & acquisition, creative, retention and measurement. Lower Cross LLC (The Private Growth Office) is based in Greenwich, Connecticut, and works across North America. Founder & CEO: Jonathan Geller (Forbes 30 Under 30 (2016)). Chief Operating Officer: Zach Epstein. Medallion is Lower Cross's reporting platform: Medallion reconciles channel data, internal figures, ad platforms, attribution and email into one view of spend, revenue and contribution. Contact: hello@lowercross.com, +1-203-990-2888. ## Pages - [Lower Cross](https://lowercross.com/): Lower Cross is a private growth office in Greenwich, CT: one senior partner for paid media & acquisition, creative, retention and measurement. - [Expertise](https://lowercross.com/expertise): Eight growth levers run by one senior team: paid media, creative, site and conversion, email and SMS, brand, insight and analytics, tied to your goals. - [Who we help](https://lowercross.com/who-we-help): For founders, private-equity investors and growth teams at consumer businesses whose growth has outgrown a roster of agencies. - [Work](https://lowercross.com/work): Engagements with verified results: +400% apparel revenue in 90 days, +329% real-estate revenue, 29x ROAS for a PE-owned brand, and what changed in each. - [Medallion](https://lowercross.com/medallion): Medallion reconciles channel data, internal figures, ad platforms, attribution and email into one view of spend, revenue and contribution. - [The firm](https://lowercross.com/about): Founded by Jonathan Geller, Lower Cross is a private growth office in Greenwich, Connecticut: senior operators connected directly to the work. - [Perspectives](https://lowercross.com/perspectives): Notes by Jonathan Geller on measurement, operating models and creative: why ROAS can rise while profit falls, and why more ads won't fix a weak offer. ## Expertise - Performance media & acquisition: Google and Meta strategy, campaign management, budget allocation, and testing, grounded in acquisition cost and profitability. - Creative strategy & production: Concepts, messaging, briefs, and assets. We test different ideas, then use the results to guide what gets made next. - Competitive insight & analysis: Competitors' positioning, advertising, offers, and shopping experiences, studied to find openings for strategy and testing. - Website & product-page design: Sites, landing pages, and product pages that connect the advertising promise to the purchase experience. - Conversion & profit optimization: Offers, layouts, cart, checkout, and post-purchase tested to lift conversion and profit per session. - Email, SMS & retention: Klaviyo setup and migrations, lifecycle strategy, flows, and campaigns that drive repeat purchase and customer value. - Brand & positioning: Who the brand is for, what it promises, and why it wins, sharpened into messaging every channel can use. - Analytics & measurement: Tracking, attribution, and reporting set up so revenue, spend and contribution reconcile, powered by Medallion. ## Work - [A new growth system for a $50M GMV company](https://lowercross.com/work#smart-home): Smart home. Site migration to Shopify with paid media, lifecycle and ecommerce rebuilt around conversion economics. - [Digital strategy supporting a $20M Series A](https://lowercross.com/work#real-estate): Real estate. +329% revenue. - [A profitable new acquisition channel](https://lowercross.com/work#functional-consumables): Consumables. +105% reported profit, +221% new customers, +48% AOV. - [A 400% sales surge for a luxury fashion company](https://lowercross.com/work#luxury-apparel): Apparel. +400% revenue in 90 days. - [Rebuilding Meta as a profitable channel](https://lowercross.com/work#private-equity): Private equity. 29× reported ROAS, 8× average contract value. ## Perspectives - [ROAS is up. Is the business worth more?](https://lowercross.com/perspectives#decision-stack): Strong ad numbers and a stronger business are not the same thing. (Measurement, by Jonathan Geller, 2026-02-11) - [Five agencies and no one in charge](https://lowercross.com/perspectives#agency-roster): Good partners can still add up to a business nobody is running. (Operating model, by Jonathan Geller, 2026-05-27) - [More ads won’t fix a weak offer](https://lowercross.com/perspectives#creative-learning): Volume can hide the real problem instead of solving it. (Creative, by Jonathan Geller, 2026-08-19) ## Clients Brands the team has worked with: Amazon, Samsung, AT&T, T-Mobile, Jacob & Co., Anker, Republic Records, XOJET Aviation, TRX, Vaultek, RLTYco, Prime, Nic Nac, Farm to People, Tropical Oasis, Amali, Charlie Fox, Calissa, The Realest, EnergyBits. ## Certifications Google Partner, Meta Business Partner, Shopify Partners, Klaviyo Partner. ## Full text - [llms-full.txt](https://lowercross.com/llms-full.txt): the text of every page in one file. ## Contact - Email: hello@lowercross.com - Phone: +1-203-990-2888 - Start a conversation: https://lowercross.com/#contact ## Optional - [Privacy Policy](https://lowercross.com/privacy-policy): How Lower Cross LLC collects, uses and protects information about visitors and contacts. - [Terms of Service](https://lowercross.com/terms-of-service): The terms that govern use of lowercross.com, including its content, forms and newsletter, provided by Lower Cross LLC.