# Quintessential

> We partner with organisations, startups, and visionary individuals across Greece, North America, the UK, the UAE, and Spain to design, build, and scale digital products.

Quintessential is an Athens-based digital product agency (founded 2018). A team of 25+ designers, engineers, and product people acts as a single accountable partner for full-cycle product development, embedded AI work, and dedicated team extension. We ship across web, mobile, and desktop, with particular depth in AI-assisted delivery.

Use this file as a map of the public site. Prefer the linked service and portfolio pages over crawling marketing chrome. Canonical hostname is https://www.quintessential.gr/.

This is a services business, not a software product: there is no public API, no MCP server, and no SDK. See https://www.quintessential.gr/developers.md.

## When to use us

- [Aletheia AI](https://www.quintessential.gr/services/aletheia-ai): AI strategy and roadmapping, custom LLM implementation, process automation and agentic AI, plus training and workshops for teams.
- [Product Development](https://www.quintessential.gr/services/product-development): Full-cycle product work covering research, product design, software engineering, and DevOps / cloud engineering.
- [Team Extension](https://www.quintessential.gr/services/team-extension): Dedicated cross-functional product teams and IT staff augmentation that embed into an existing workflow.

## Key pages

- [Homepage](https://www.quintessential.gr/): Positioning, selected work, and how the engagement process runs.
- [Homepage (markdown)](https://www.quintessential.gr/index.md): Same facts as markdown; also served when `Accept: text/markdown` is sent to `/`.
- [Agent view](https://www.quintessential.gr/agent-view.md): Compact machine-readable summary of endpoints, auth, and capabilities. Also served at `/?mode=agent` when that request hits this Worker.
- [Services](https://www.quintessential.gr/services): Overview of product development, Aletheia AI, and team extension.
- [About](https://www.quintessential.gr/about): Purpose, team, and global delivery from Greece.
- [Work with us](https://www.quintessential.gr/work-with-us): Contact form for new product, AI, or team-extension conversations.
- [Pricing](https://www.quintessential.gr/pricing.md): Engagement models and how quotes are scoped.

## Section maps

- [Services map](https://www.quintessential.gr/services/llms.txt): Scoped index of the three service lines.
- [Portfolio map](https://www.quintessential.gr/portfolio/llms.txt): Scoped index of published case studies.

## Selected work

- [Relief Time](https://www.quintessential.gr/portfolio/relief-time): Digital ecosystem making medical cannabis more accessible.
- [Up Hellas — FlexOne](https://www.quintessential.gr/portfolio/up-hellas-flexone): Unified employee-benefits experience with Up Hellas.
- [Up Hellas](https://www.quintessential.gr/portfolio/up-hellas): Conversion-driven digital presence for an employee-benefits platform.
- [Pharmacy295](https://www.quintessential.gr/portfolio/pharmacy295): Multi-device e-commerce for a leading online pharmacy.
- [Avante Security](https://www.quintessential.gr/portfolio/avante): Product suite protecting lives, assets, and estates in North America.
- [PPC Blue / Carge](https://www.quintessential.gr/portfolio/ppc-blue): Access to thousands of EV chargers for EV owners in Greece.
- [Waiz — National Bank of Greece](https://www.quintessential.gr/portfolio/waiz): Daily money-management app for National Bank of Greece customers.
- [HD Corner — Karabinis Medical](https://www.quintessential.gr/portfolio/hd-corner): Hypertension and diabetes support for a large patient community.
- [Viz](https://www.quintessential.gr/portfolio/viz): Personalised tutoring for students in North America.
- [Vespr](https://www.quintessential.gr/portfolio/vespr): Dating app connecting like-minded people.
- [Castview](https://www.quintessential.gr/portfolio/castview): Quality-control system for aluminium components.

## Developer and agent resources

- [Developer guide](https://www.quintessential.gr/developers.md): How agents should read the public site, and what this site deliberately does not offer.
- [Authentication](https://www.quintessential.gr/auth.md): none required; the website is public.
- [Agentic Resource Discovery catalog](https://www.quintessential.gr/.well-known/ai-catalog.json)
- [A2A agent card](https://www.quintessential.gr/.well-known/agent-card.json)
- [Agent skills index](https://www.quintessential.gr/.well-known/agent-skills/index.json)

## Contact

- [Email](mailto:contact@quintessential.gr): contact@quintessential.gr
- [Work with us](https://www.quintessential.gr/work-with-us): Start a conversation about a product, AI, or team engagement.
- [Headquarters](https://www.quintessential.gr/room): Chamosternas 16, 11853, Athens, Greece.

## Optional

- [Greek site](https://www.quintessential.gr/el): Greek-language version of the site.
- [French site](https://www.quintessential.gr/fr): French-language version of the site.
- [Blog](https://www.quintessential.gr/blog): Articles and updates.
- [Staff augmentation](https://www.quintessential.gr/services/staff-augmentation): Additional team-extension detail.
- [Privacy policy](https://www.quintessential.gr/privacy-policy): How personal data is handled.
- [Terms and conditions](https://www.quintessential.gr/terms-and-conditions): Legal terms.
- [Cookies policy](https://www.quintessential.gr/cookies-policy): Cookie usage.