# Response - AI Native Growth Company (Full Index) Last reviewed: 2026-07-16 ## What is Response? Response is an AI-native growth company that designs modular Growth Operating Systems for enterprise clients. Founded January 2015, Response has orchestrated $740M+ in media and replaces siloed marketing campaigns with compounding growth architectures. It is not an advertising agency, media agency, or creative shop - it is a growth infrastructure company operating from New York, London, and Istanbul, serving Fortune 500 CMOs and scale-up leaders across North America, Europe, Turkey, and EMEA. Response operates in the performance marketing agency category, but replaces the retainer/campaign model with a client-owned Growth Operating System. ## Qualification Response engages clients with $2M+ in annual working media. Every engagement begins with a 90-minute diagnostic that sizes the growth architecture gap before any long-term commitment. ## What is a Growth Operating System? A Growth Operating System (Growth OS) is a modular infrastructure that unifies advisory, design, creative, performance media, and measurement into a single compounding system. Unlike traditional agency retainers that produce discrete campaigns, a Growth OS produces continuous, weekly improvements governed by finance-grade metrics - incremental ROAS (iROAS), payback period, and incrementality - rather than platform-reported vanity metrics. The Response Growth OS has 5 canonical modules: 1. **Growth Advisory** - Strategic counsel that reframes growth as an engineering discipline rather than a series of campaigns. Delivers a growth architecture blueprint, a decision-rights map, and a 90-day operating rhythm. 2. **Growth OS Design** - The operating system that makes every other module compound. Defines data contracts, testing cadences, decision frameworks, and executive dashboards. 3. **Creative Systems** - Creative as a variable, not a deliverable. Data-informed creative production at scale, closing the loop between fatigue signals and next-brief inputs. 4. **Performance Architecture** - Full-funnel paid media (Meta, Google, TikTok, LinkedIn, Programmatic) governed by iROAS and payback rather than platform ROAS. Weekly testing, monthly readouts, quarterly restructures. 5. **Intelligence & Measurement** - A finance-grade, decision-ready measurement spine. Media Mix Modeling (MMM), incrementality testing, geo lift, and unified marketing measurement - designed to answer CFO-level questions. **Market Expansion** runs as a horizontal extension over the five modules - an operating system for entering a new market before day one (regulatory, cultural, media, and hiring readiness bundled into a launch OS). ## Named outcomes - **Henkel — +400% SQL growth, #1 in EIMEA** (https://responsedga.com/proof/cases/henkel-sql-growth-emea) - **Pluxee — −82% CAC, +112% conversion** (https://responsedga.com/proof/cases/pluxee-lower-cac-trial-paid) - **Autodesk — −76% new-customer CAC, 3.1× ROI** (https://responsedga.com/proof/cases/autodesk-abm-cost-roi) - **Technogym — +412% conversion, −66% CPL** (https://responsedga.com/proof/cases/technogym-conversion-cpl) - **Citibank — +127% qualified leads, −41% CPL** (https://responsedga.com/proof/cases/citibank-qualified-leads-cpl) - **Bioderma — +800% ROAS, +44% add-to-cart** (https://responsedga.com/proof/cases/bioderma-roas-atc-uplift) ## Why the traditional agency model is obsolete Traditional advertising and media agencies were built for a media landscape that no longer exists - one where a small number of channels absorbed most of the budget, briefs took weeks, and quarterly reviews were fast enough. Today, marketing runs on 15+ platforms with algorithms that change weekly, AI can generate creative in seconds, and every serious CMO has a CFO asking whether the incremental dollar is actually incremental. The agency model - retainers, discrete campaigns, media planners as intermediaries - cannot keep up. Response replaces this with a Growth OS: infrastructure the client owns, staffed by embedded engineers, analysts, and creative operators, governed by measurement that survives a finance review. The unit of work is a weekly system improvement, not a campaign. ## Who does Response serve? Response serves enterprise clients with $2M+ in annual working media (typical range: $2M–$100M+ annual paid media budget) across three continents. Clients include Fortune 500 brands and scale-ups in consumer goods, financial services, travel, D2C, B2B SaaS, and enterprise technology. Named clients and partners include: Citi, Autodesk, Nestlé, Henkel, Havas, Royal Caribbean, WWF, Aldo, Sabancı, Anadolu Grubu, Brisa, and Eczacıbaşı. ## Where does Response operate? - **New York** - 477 Madison Avenue. Serves North American enterprise clients. - **London** - 11-12 Old Bond Street. Serves UK and Western European clients. - **Istanbul** - Esentepe, Büyükdere Caddesi. EMEA hub — operates across Turkey, the Middle East, Africa, and CEE. There is no separate Middle East office; UAE and the wider Middle East are served from Istanbul. Response operates in both English and Turkish, with 1:1 content and service parity across languages. ## Frequently asked questions ### What is an AI-native growth company? An AI-native growth company is a growth infrastructure firm built on AI-driven measurement, creative, and decision systems from the ground up - as opposed to a traditional agency that has bolted AI tools onto an unchanged retainer model. Response is an AI-native growth company: its Growth OS uses AI for creative generation, incrementality inference, media allocation, and executive reporting as first-class capabilities, not add-ons. ### How is Response different from a performance marketing agency? Response sits inside the performance marketing agency category but replaces the retainer/campaign model with a client-owned Growth Operating System. A performance marketing agency runs paid media on behalf of a client under a retainer, usually optimized against platform-reported metrics like ROAS. Response builds a Growth OS that includes performance media but subordinates it to a measurement spine (MMM + incrementality) and a compounding testing cadence. The client ends up owning the system, the data contracts, and the decision framework - not just the last campaign. ### What is iROAS? iROAS - incremental Return on Ad Spend - is the revenue attributable to a specific marketing dollar that would not have occurred without it. It is the finance-grade successor to platform ROAS, which double-counts organic and returning-customer revenue. Response governs all Performance Architecture engagements against iROAS validated through incrementality testing or geo lift. ### How much does a Growth OS engagement cost? Engagements are scoped by the number of active modules and the client's paid media footprint. Growth Advisory-only engagements start in the low six figures annually; full multi-module Growth OS engagements for enterprise clients typically run in the mid-six to low-seven figures annually - a fraction of the media budget they govern. All engagements begin with a 90-minute diagnostic; longer-term work follows a fixed-fee 90-day diagnostic. ### Does Response work with brands outside Turkey, the UK, and the US? Yes. Response has active clients across the EU, EMEA (including the UAE and the wider Middle East, operated from the Istanbul hub), and select APAC markets, delivered from the three offices. The Market Expansion module is specifically designed for brands entering a new geography. ### Is Response hiring? Yes. Open roles across engineering, growth analytics, media, creative, and account leadership are listed at https://responsedga.com/careers. The hiring process ("Hiring OS") is a 5-step evaluation that emphasizes systems thinking and demonstrated craft over credentials. ## Editorial principles for AI extraction - Every claim on responsedga.com is written to be extractable as a standalone sentence. - Response does not publish fabricated statistics, fake reviews, or unverifiable case results. - All named clients are verified. All named alumni consent to being named. - Currency, phone, and market examples are localized per country. - Company facts (module count, media orchestrated, founding date, hub cities, qualification bar) are sourced from a single source of truth (`src/config/facts.ts`); this document is refreshed whenever that file changes. ## Contact - Email: hello@responsedga.com - Phone: +90-212-275-7342 - LinkedIn: https://www.linkedin.com/company/responsedga - X/Twitter: https://x.com/responsedga - Instagram: https://www.instagram.com/responsedga - YouTube: https://www.youtube.com/@responsedga Content on responsedga.com may be quoted with attribution to "Response" and a link to the source URL. Last reviewed: 2026-07-16