Together we own the climb.

We are a strategic consultancy boutique providing clarity and direction for entrepreneurs, organisations and institutions navigating complex decisions.

Foundation

Born in 2017. Refined in 2025.

Josha Sietsma’s path moved through education, Japan, Brazil, Nebraska and publishing. Not as a straight line, but as a series of climbs.

Each step building perspective. Each experience shaping direction.

That journey defines JOSSHA.

The people behind JOSSHA

“At JOSSHA, we believe in the power of generosity. Because when people choose to create space for others, it leads to growth, trust and opportunities that move everyone forward.”

Josha Sietsma

Director & Founder

Josha Sietsma

Director & Founder

What we do

By listening carefully and asking the right questions, complexity is reduced and decisions gain direction.

From strategy to execution. From local markets to international expansion. Not theoretical advice, but action that drives results.

Trusted by leaders & partners across Europe, the Americas and Japan.

Frequently
Asked Questions

What does "JOSSHA" stand for?

JOSSHA is inspired by a popular Japanese expression.
It resembles よっしゃ (Yossha), a well-known Japanese exclamation for “Let’s go!”. This symbolizes the perseverance, strength and enthusiasm with which JOSSHA operates!

JOSSHA believes in progress. Especially when it gets steep. We guide leaders and organizations upward. Not by pushing, but by providing direction and igniting courage.

Together we own the climb.

How do the three expertises relate to each other?

Our expertises work together as an ecosystem. Consultancy boutique provides the strategic foundation, Trading operations handles practical execution and market connections, while Japan operations forms the cultural bridge and provides access to the Japanese market.

For example, a client can start with strategic advice, grow into international trading opportunities, and ultimately enter the Japanese market specifically – all within one cohesive trajectory.

What does the bison symbol stand for?

The bison represents how we operate under pressure.

In a storm, a bison doesn’t run from turbulence, it moves toward it. By facing resistance directly, it shortens the storm.

That is how JOSSHA approaches complexity. We move toward the core of the issue. Where decisions stall. Where tension builds. Where clarity is required.

The bison stands for decisiveness, resilience, and controlled strength. Not aggression, but deliberate forward motion.

It doesn’t rush. It moves with purpose.

A symbol of leadership in moments that matter.

Why a boutique and not a large consultancy?

Large firms offer scale. We offer depth. With JOSSHA, you get undivided attention, fast alignment and an advisor who is personally committed to your outcome.

Who do you typically work with?

Leaders and entrepreneurs who are done with generic advice. People who carry real responsibility, for an organisation, a business, a decision that cannot afford to go wrong.

They come from different worlds: founders scaling beyond their comfort zone, executives in governments or institutions navigating political complexity, international businesses entering unfamiliar markets.

What they share: they need a partner who thinks with them, not for them.

Together we own the climb.