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Ardelys

Ardelys × ResonanceMetrics

White-label GEO for marketing, communications and employer-brand agencies.

There are dozens of GEO tools on the market today.
Almost none of them are built for agencies, and their clients.
Ardelys is built on twenty-five years spent inside agencies and on the client side, and on a proprietary platform.
Our aim is to let you offer more to your clients, and to add one more string to your growth bow.

Let's build your offering together
100+
GEO and APO analyses delivered
12
years in agencies — Carat, Ogilvy, Angie
5
agencies we have worked with
15 days
to the first read

Agencies: Ogilvy, Angie, Zooka, TBWA, No8 BtoB. Brands worked with: IBM, Lenovo, L'Oréal, Airbus, Tietoevry, Gloria, Lodesse.

Ogilvy Angie Zooka TBWA No8 BtoB
IBM Lenovo L'Oréal Airbus Tietoevry Gloria Lodesse

When to call us

A standalone module, or one that plugs into your offering

Ready to run immediately, in the service of your teams and your clients

A client asks you about their GEO. And it's urgent.

Your clients will not wait six months for a capability to be built. They want a first read of where they stand and an action plan within the month. We let you show up straight away, with the depth of an established team behind you.

A pitch includes an AI component

A brief lands with a question about visibility in generative engines, and the pitch is three weeks away. We build the GEO section of your response, mobilised within days, with real findings on the brand rather than a generic methodology.

You want to upsell or cross-sell your existing clients

A monitoring tool tells you your client is cited 12% of the time and their competitor 34%. Nobody knows what to do with that. We turn the measurement into a prioritised workstream plan — so into a recommendation you can present and work you can invoice.

Let's talk

How to plug us in

A GEO offering ready to plug into your setup

Nothing to build, nothing to integrate, nothing to learn. You give us an account, you get back a recommendation in your own brand.

01

Scoping from your brief

No format imposed. We start from your scope and from the relationship you have built. The GEO proposal slots into your recommendation, your engagement, or your pitch response.

02

A recommendation you can price and execute

Not an audit report: an ordered workstream plan — which content to produce, which pages to rebuild, which sources to secure, in what order and for what impact. You can price it the same evening.

03

Support, if you want it

Training for your teams or your client's. Co-leading the client presentation. Support during execution: editorial trade-offs, prioritisation, quality control. Visible to your client or not — you set the level.

You keep the client relationship, the brand on the deliverable, the invoicing, and control of the timeline.

See what an analysis contains

Antoine Heftler, founder of Ardelys

Antoine Heftler — founder of Ardelys, co-founder of ResonanceMetrics

LinkedIn profile

  • 2025 — present · ResonanceMetrics · Co-founder
  • 2025 · Angie · VP Generative AI and Content
  • 2018 — 2024 · Leadnostic · Operating Partner, funds and B2B scale-ups
  • 2004 — 2013 · Ogilvy · Client service director, then Head of Operations

Earlier: new business at Carat, head of digital marketing at Tietoevry, founder of IBaround in Stockholm.

Who runs it

We know how your machine works because we have run it

New business at Carat. Client service director at Ogilvy on the Lenovo and IBM accounts. Then founding and running the group's first production hub, in India and Romania — production, delivery, quality, margin, with P&L responsibility. And VP Generative AI at Angie, on L'Oréal and Airbus programmes.

Twelve years in agencies. We know what a well-structured brief looks like, what a recommendation that gets a yes looks like, and what it takes for a team to be operational fast.

  • We fit into your schedule, not the other way round.
  • We produce in your formats: your templates, your colours, your signature.
  • We know the difference between a client brief, a pitch recommendation and an operational action plan.
  • We know that a recommendation which never becomes a purchase order is worth nothing.

How it runs

Four steps, from brief to measurement

  1. 01

    Scoping

    One session with you, and with your client if you want. We define the scope, the stakes and the questions the analysis has to answer.

  2. 02

    Analysis

    The platform processes the brand's message, website and sources across all generative engines. Output in your brand.

  3. 03

    Recommendation

    The workstream plan, prioritised and priceable, handed to your teams in the format that lets you build your quote.

  4. 04

    Execution and re-measurement

    Your teams deliver. We support if you want. Quarterly re-measurement to evidence the result to your client.

Engagement models

Three ways of working together

Depending on how much your teams want to own.

Your teams run it We run it with you

SaaS

The white-label platform

Your teams get access to ResonanceMetrics and run analyses and action plans themselves, across as many accounts as they like. Output in your brand.

For: a well-equipped agency that wants to bring the capability in-house.

Hybrid

The platform, with us on scoping

Your teams keep their hands on the tool. We step in on the scoping of each account and on the recommendation, to secure the trade-offs without tying up your teams.

For: moving fast without waiting on a learning curve.

Full support

People first

Scoping, analysis, recommendation, training for your teams, co-leading the client presentation and support during execution. We carry the subject with you end to end.

For: an agency that wants the result without building the capability internally.

All three models can be activated per account, or under a framework agreement across your client portfolio.

ResonanceMetrics

The platform

ResonanceMetrics analyses, Ardelys supports you

We co-founded ResonanceMetrics so that we could control the three decisive stages of GEO management: the scoping, the analysis methods, and the structure of the action plan

Threefold diagnostic

It maps how AI perceives a brand and its products through three lenses: semantic, source-based and technical.

Multi-engine tracking

ChatGPT, Claude, Gemini, Perplexity, Google AI Overviews. Mentions, sentiment, share of voice and competitive mapping, tracked over time.

Two modules

GEO acts on the three levers of visibility — message, sources, website. APO makes product pages usable by AI agents, for conversational commerce.

Where most tools stop at the finding, the platform generates an action plan prioritised by business impact, not by technical severity.

resonancemetrics.com

Client experience

Genuinely relevant support on a subject that is still emerging yet already strategic. The ResonanceMetrics approach gave us a first clear, concrete picture of how LLMs perceive our brand, our offering and our website. Beyond the diagnostic, the work helps us structure our strategic thinking on an issue that is becoming central for brands: understanding how they are interpreted, cited and recommended by artificial intelligence, and identifying the levers that will strengthen their visibility and credibility in these new environments. We also particularly appreciated the availability, responsiveness and professionalism of the team, who listened throughout.

Laura Lasry — co-founder, Gloria

Gloria

Frequently asked questions

What agencies ask us

Contact

We're here to help

Working on a pitch, fielding a client question, or building your own AI offering? Let's talk.

This form does not ask for your clients' names. We never approach a brand introduced by an agency directly, and we sign an NDA before any conversation that names one.

Reply within 48 working hours. contact@ardelys.ai

Publications

GEO newsletter

One analysis a week on AI visibility, GEO and organisational change.

What GEO changes in the agency business model Selling an AI component inside a pitch response Why a GEO analysis without a workstream plan is worthless GEO vs SEO: what client service leaders need to understand

One analysis a week. Unsubscribe in one click.

Read the newsletter on Substack

Podcast

Antoine Heftler on how brands need to speak to AI in order to exist in its answers.