Boardroom overlooking the city at dusk

Maximising value in
high-stakes situations

C-suite and Board Advisory

Strategic leadership advisory and financial communications firm specialising in high-stakes capital market events, corporate finance situations, governance and corporate resilience matters

About

We partner with company leadership to navigate complexity, command market authority and reinforce strategic stewardship.

Our advisory is structured to deliver five critical institutional outcomes:

Value creation: drive long term enterprise value

Credibility: achieve undisputed capital markets credibility

Confidence: institutionalise market confidence

Authority: establish industry-defining authority

Goodwill: solidify strategic stewardship and enterprise goodwill

We are independent and founder-owned. Free from institutional constraints and conflicting agendas, we provide C-suite executives and Board Directors with uncompromised strategic counsel. Whether guiding an enterprise through high-stakes capital market transactions or conducting rigorous, proactive vulnerability audits, our partner-led structure guarantees absolute discretion, agility and velocity.

Our core principles are:

Uncompromising Integrity

Providing unvarnished, objective counsel exclusively aligned with our clients’ long-term strategic interests

Absolute Respect

Honouring the weight of fiduciary responsibility and the nuances of high-level corporate governance

Flawless Excellence

Delivering the disciplined technical rigour and precision required when stakes are high

Enduring Stewardship

Safeguarding the reputations, corporate legacies and future resilience of the clients we partner with

Board meeting silhouetted against a city skyline

Leadership Team

The leadership is comprised of veteran corporate finance advisors and capital markets specialists with proven executive backgrounds at global bulge-bracket investment banks. Collectively bringing more than a century of strategic transaction experience, the team commands an extensive network of institutional investors and C-suite and board relationships across the EMEA region. Built over decades of high-stakes capital market events, this deep connectivity ensures our clients receive sophisticated, board-level guidance backed by direct access to key market decision-makers.

Thomas Deitz, Chairman and Founding Partner of TEOS Advisory Limited

Thomas Deitz

Chairman & Founding Partner

Thomas is an accomplished corporate finance veteran, equity markets specialist and trusted boardroom advisor with a 30-year track record of driving enterprise resilience and market valuation across Europe.

Having held top-tier executive leadership roles at major global investment banks - including Barclays (Head of European Equity Advisory) and Royal Bank of Scotland (MD, Equities & Head of European Mid Cap Research), alongside Merrill Lynch and Citigroup - he brings deep expertise in corporate strategy, capital optimization and regulatory risk management.

Operating at the intersection of strategic communications, public equity markets, corporate finance and strategic risk, Thomas serves as a key advisor to C-suites and Boards of Directors, guiding them through macro shocks, high-stakes crises and complex capital market transactions and events. He advises large and mid-cap leadership teams on aligning corporate strategy with market expectations to maximize valuation impact and defend stakeholder value. While sector-agnostic, he possesses deep expertise in energy, utilities and critical infrastructure, having advised market leaders such as Enel, Enel Green Power, Eni, Naturgy, Neoen, Snam and Technip.

Thomas speaks English, French, German and Italian.

Benoit Savoret, Advisory Board Member of TEOS Advisory Limited

Benoit Savoret

Advisory Board Member

Benoit has been a private equity investor and non-executive Board member of small-to-mid-sized non-listed companies for nearly a decade, after a successful 25 year career in international investment banking. He is a passionate, decisive, accomplished and visionary business leader with a track-record of building and turning around large organisations in times of transformational change.

Throughout his career, Benoit has inspired people, built trust and empowered teams to perform and innovate, producing results beyond expectations in global and local businesses in the UK, Continental Europe, USA and Asia Pacific.

Benoit held many high-profile senior leadership positions in the financial services industry, such as Co-Head of Global Equities and Member of the Wholesale Executive Committee and Executive Management Board at Nomura and COO EMEA and Member of the Firm Executive Committee at Lehman Brothers. Earlier in his career, Benoit has spent 11 years in derivatives trading, first at Société Générale (US, UK, Japan and Hong Kong) and then at Lehman Brothers, where he became Global Head of Derivatives Trading.

Stephane Diederich, Advisory Board Member of TEOS Advisory Limited

Stephane Diederich

Advisory Board Member

Stephane has had a successful 30-year career across investment banking, equity and debt markets, derivatives and fund management and distribution.

Stephane is currently CEO of the award-winning investment fund platform Alpha UCITS. Based in London, Alpha UCITS is one of the oldest specialised UCITS fund distribution and structuring platforms. Its target investors are institutional end-investors across Europe.

Prior to founding Alpha UCITS in 2009, Stephane was a Partner at hedge fund Brevan Howard Asset Management.

Before that, Stephane worked for 13 years at Credit Suisse. His most recent leadership responsibilities were European co-head of fixed income derivative sales and head of EMEA institutional equities derivatives sales.

Stephane started his career in cross-border M&A and debt capital markets at Morgan Stanley in London.

Advisors in a strategy session in a glass-walled meeting room

What We Do

When We Get Involved

We provide the independent predictive intelligence, risk and vulnerability assessments and governance counsel required by the C-suite and board navigating high-stakes corporate inflection points. We guide our clients’ strategic choices throughout:

Capital Market Transactions & Valuation Events

M&A, IPOs, demergers, spin-offs, follow-ons, complex restructurings and equity & debt capital raises

Shareholder & Governance Dynamics

Activist protection and defence, proxy contests, institutional shareholder engagement and executive succession

Corporate Resilience Matters

Macro shocks, cybersecurity breaches, regulatory investigations, operational & physical business disruptions and existential reputation management

How We Deliver Value

In these critical situations, our advice is designed to safeguard our client’s reputation, protect its valuation and credibility, preserve its strategic choices and ensure board longevity:

Investor Alignment

We align corporate events, post-assessment remediation initiatives, or the strategic rationale of a transaction with institutional investor expectations to mitigate market arbitrage and execution risk

Market Authority

We support the leadership and board to establish industry-defining authority prior to, and throughout, high-stakes events, by structuring strategic readiness protocols and pre-emptive market narratives, preparing rigorous thought leadership and anchoring market confidence

Governance & Fiduciary Oversight

We provide independent intelligence that eliminates blind spots and underpins board decisions. This process mitigates governance risk, builds a defensible record of due care, minimizes fiduciary liability, upholds strategic autonomy and enables internal governance stability and cohesion

What We Deliver

We equip leadership teams with clear, actionable advisory outputs designed to insulate the board and protect corporate valuation and credibility:

Proactive Vulnerability Assessments & Remediation Roadmaps

Granular evaluations to identify governance, valuation or corporate strategy and capital allocation perception gaps, paired with clear action paths

Board Readiness Simulations

Targeted strategic dry-runs to prepare directors for high-stakes scrutiny, activist interventions, or proxy contests

C-Suite Message Stress-Testing & Response Simulations

Objective evaluation of leadership communication against aggressive market dynamics and adversarial scenarios

Reputational Resilience Audits

Deep-dive reviews to uncover hidden vulnerabilities that threaten institutional standing

Market Arbitrage & Valuation Risk Audits

Strategic data analytics evaluating how governance, strategic and equity story vulnerabilities expose the company to value dislocation and trading volatility

Independent Shareholder Alignment Audits

High-level strategic intelligence providing the board with unvarnished data on institutional shareholder positions on strategic direction and other key issues to prevent value leakage and proxy blind spots

Institutional Fiduciary Engagement Audits

Comprehensive reviews of systemic investor communications to ensure the strategic rationale of a transaction or corporate event perfectly protects board autonomy, anchors market confidence and aligns with institutional expectations

Market Leak Response Playbooks

Tailored, rapid-deployment operational frameworks designed to contain unauthorized disclosures and maintain narrative control

Strategic Capital Markets Perception Audits & Narrative Positioning

Multi-year narrative alignment designed to fix persistent valuation discounts by aligning internal board assumptions with public market realities

Who We Work With

With deep roots in energy, utilities, infrastructure, industrials and technology, our sector coverage also extends into materials, transportation, consumer, business services and healthcare.

Board meeting viewed from above

Due to the highly sensitive and strategic nature of our mandates, our engagements are strictly confidential.
We serve as trusted advisors to a select portfolio of institutional leaders, typically encompassing:

Publicly Listed Corporations

Board directors, special committees and C-suite executives navigating complex market disruptions, capital allocations, activist campaigns, or transactions where independent verification is required to uphold the fiduciary standard of due care

Founder-Led & Family-Controlled Enterprises

High-growth or generational businesses managing critical transition events, capital raises, or structural reorganizations

Private Equity & Institutional Investors

Sponsors requiring independent risk assessments and governance counsel for portfolio companies during high-stakes acquisitions or exits

Throughout their multi-decade professional careers, the TEOS leadership members have partnered with 50+ European companies on high-impact strategic transactions and corporate events — fostering enduring advisory relationships that span entire corporate life cycles.

Financial district office towers
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TEOS Advisory Limited

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