G-House Global & Public Affairs

Positioning in
decisive moments.

We guide individuals and companies on the path from professional excellence to institutional authority — at the intersections of business, politics, media and international institutions.

AccessAuthorityInfluence

Learn more

About us

We build position where trust, influence and international visibility take shape.

G-House Global Affairs is an advisory boutique for international reputation, curated access and institutional authority. We work for a select number of individuals, companies and organisations whose work is meant to gain significance beyond their own market.

The most important decisions are made long before the public debate — in networks, at institutions and on stages most people cannot enter. That is precisely where we develop relevance: quietly, reliably and built to last for years.

What we do

Relevance that endures.

01
Positioning on international stages

We position personalities and organisations where trust, influence and international visibility are created — from the United Nations to the leading forums of the global economy.
02
Networks between business and politics

Where institutions meet business, we accompany companies, associations and experts to the intersections of politics, economy and society — and create the connections that make movement possible.
03
Curated access and memberships

Access is the most valuable currency of our time. We open the door to forums, clubs and circles in which reputation, trust and lasting relationships are formed — carefully selected and personally accompanied.
04
Reputation and media authority

Reputation opens doors that advertising will never reach. Credibility is not built through reach, but through the right platforms, relationships and references — nationally and internationally.

amfAR Venezia · San Clemente Palace, Venice

Upcoming events

amfAR Gala Venice 2026

2026 · San Clemente Palace, Venice

G-House Global Affairs will be present at the amfAR Gala 2026 in Venice — one of the most significant gatherings of international society, culture and philanthropy.

A number of selected G-House Global Affairs clients have also been invited to attend the gala.

To be heard when it matters.

We create access to the media, institutions and networks that decide on reputation, influence and lasting success.

Press

In the press.

Our perspectives on trust, reputation and public affairs — taken up by editorial desks across the German-speaking world.

Featured in

Making professional expertise visible where trust is formed.

A strategic link between professional excellence and institutional relevance.

Reputation is becoming a strategic corporate resource.

Visibility and authority are not automatically connected.

Trust is becoming a strategic competitive factor.

Global public affairs creates institutional connectivity.

Credibility arises through institutional context.

Trust is built long before the first encounter.

Trust is becoming an economic asset.

G-House guides long-term institutional positioning.

Public affairs is becoming a strategic management task.

Public affairs, rethought.

Translating expertise into public authority.

Making expertise visible where trust is formed.

Credible relationships instead of short-lived attention.

Global public affairs connects business and institutions.

Team

Two perspectives, one standard.

Marcus Giers

Founder · Positioning & Reputation

Marcus Giers has been connecting people, media and markets for over two decades. His focus is the positioning of personalities — from professional credibility to publicly recognised authority. He thinks in relationships, not campaigns, and accompanies mandates over years.

Senator in the Senate of the Economy
For 15 years a speaker on international stages — including at the United Nations headquarters and as a guest lecturer at universities.

“The right rooms change your perception forever.”

Alfred Hanus

Founder · Digitalisation, AI & Business Development

Alfred Hanus leads digitalisation, artificial intelligence, business development, online marketing and funding strategy at G-House. His focus is the interplay of technological development and entrepreneurial steering — translating professional substance into robust, digitally driven growth processes and opening up public funding programmes as a strategic instrument.

Engineer & entrepreneur
Authorised within the INQA funding programme and a state-accredited energy-efficiency expert for federal funding programmes (KfW + BAFA).

“You have to speak with the right people at the right time.”