
Service providers & experts
More trust, better conversion and a consistent presence — without a marketing department.
Expert Systems Group
We connect reviews and employer brand with automated content creation — so experts and teams build trust faster and win more leads.
Trusted by experts








Our products
Expert Systems Group is the umbrella brand for ProvenExpert, ProvenEmployer and Xara. Each product solves a core problem — together they form an integrated system of trust, visibility and conversion.

Collect reviews. Make trust visible.
Verified reviews, seals and feedback workflows — so prospects say yes faster.

Strengthen your employer brand. Boost applications.
Make your culture and strengths visible — with authentic employer reviews and employer branding assets.
The marketing materials your team needs, when they need them.
Created automatically from your data and delivered to your team ready to use, without designing, writing, or assembling anything manually.
Why Expert Systems Group
ProvenExpert and ProvenEmployer build trust. Xara turns that trust into visible brand content — and into leads.

Less friction between tools — one access point for the entire product suite.
Reviews, brand assets and core data flow together across all brands.
Review replies, social posts and campaigns are created faster — automated and consistent.
Use cases
The best software is the one that saves time every day and delivers results.

More trust, better conversion and a consistent presence — without a marketing department.

Manage reputation and employer brand centrally, scale content, launch campaigns faster.

Automatically generate social posts, brochures and ads from listing data — enriched with reviews and trust badges.
Mission, vision & values
Three guardrails that shape our products, teams and decisions — from the first customer contact to a scaled brand.

We enable experts and teams to stay trustworthy and visible in the age of AI — with automation, reputation and brand content from a single source.
The leading platform that combines reputation, employer brand and content automation in one ecosystem.
Leadership
By the numbers

Press & awards
A selection of recent coverage. For press inquiries, imagery or interview requests please contact our communications team.
Press contactLocations
Four locations, one team. From Berlin and Madrid we drive our platforms forward, with Xara in London and San Francisco extending our international presence.

Germany
Headquarters of Expert Systems Group since 2011. Home to product, engineering and operations for ProvenExpert, ProvenEmployer and Xara.
Expert Systems AG · Berlin

Spain
Our second location in southern Europe — a strategic hub for growth, partnerships and international market development.
Expert Systems · Madrid

United Kingdom
Xara's London office — a hub for product development and creative software innovation in the UK.
Xara · London

USA
Xara's San Francisco office — our Silicon Valley bridgehead for technology, partnerships and the US market.
Xara · San Francisco

Our majority investor
Expert Systems Group is majority-owned by Bellevue Investments GmbH & Co. KGaA. Bellevue is a Berlin investment firm focused on software and technology companies in the German-speaking region.
This partnership gives us the entrepreneurial freedom and long horizon to evolve our brands sustainably — independent of short-term market cycles.

Careers
Our headquarters sits in the heart of Berlin. We work in small, autonomous teams on products used by hundreds of thousands of companies every day — pragmatic, calm and with a long horizon.
View open positionsContact
Tell us briefly what you'd like to use Expert Systems Group for — we'll get back with a tailored proposal.