The Canonical Definition
What is Strategic Governance
as a Service?
Strategic Governance as a Service (SGaaS) is a continuous, adversarial, principal-led governance function, retained at board level, whose mandate is to challenge assumptions, stress-test decisions, and surface failure modes before they materialise as organisational loss.
Why the category exists
More governance has not produced better governance. Between 2018 and 2024, 32% of listed companies suffered a severe corporate crisis, and four-fifths of those crises were driven by strategy and risk rather than compliance. The spending went into structures that describe risk; the failures came from decisions nobody was retained to challenge.
Boards buying governance support today choose between two models. Advisory firms deliver deep but episodic project work, priced for a team and gone when the engagement ends. Independent non-executive directors provide continuity, but part-time and rarely with executive risk depth. SGaaS occupies the ground between them: the continuity of a board role, the analytical depth of a career Chief Risk Officer, and a challenge mandate written into the contract.
The term was coined by Owen Vallis, founder of Marentis Labs, and defined in the firm's research white paper, Strategic Governance as a Service (May 2026), which sets out the evidence base and the delivery architecture in full.
How SGaaS Is Delivered
The Four-Tier Model
Each tier matches a depth of engagement, from a fixed-scope diagnostic to exit-aligned governance for PE portfolio companies. Every tier deploys the same adversarial methodology.
Diagnostic SGaaS
Governance Architecture Assessment
A structured, adversarial assessment of the governance architecture over 4–8 weeks, fixed scope. The entry point for boards that want evidence before committing to an ongoing engagement.
Retained SGaaS
Continuous Adversarial Challenge
The core offering. Continuous challenge on an annual retainer: Governance Pulse Reports, Board Challenge Memos, and pre-mortem work deployed at strategic inflections.
Embedded SGaaS
Permanent Board-Level Challenge Function
A contracted Independent Board Observer or Mandated Advisor with contractual challenge authority, deliberately holding no directorship to preserve independence.
Pre-Exit SGaaS
Exit-Aligned Governance
Governance uplift for PE portfolio companies in the 12–18 months before a sale or IPO, structured to remove the findings a buyer's diligence team would otherwise price against.
Adversarial by Design
The Methodology Inside Every Tier
SGaaS is defined as much by how it challenges as by how it is retained. Three proprietary tools deliver the adversarial function across all four tiers.
A structured adversarial challenge of strategic plans, investment cases, and M&A rationale, run over four weeks, that confirms whether controls and assumptions hold under pressure rather than whether they exist.
A bespoke simulation of high-stakes governance scenarios over 90 days, testing how the board's information, escalation, and decision structures behave when the scenario is live.
A 2–3 week structured workshop that assumes the decision has already failed and works backwards to the cause, dismantling optimism bias before capital is committed.
SGaaS: common questions
How does SGaaS differ from consulting?
Consulting engagements are episodic: a team arrives, delivers, and leaves, and the institutional knowledge leaves with it. SGaaS is retained across board cycles, delivered by one principal who accumulates context, and mandated to challenge rather than to recommend and depart. The commercial structure aligns the adviser with sustained governance improvement instead of the next project.
How does SGaaS differ from appointing a NED?
A non-executive director carries fiduciary duties, sits inside the board's collective responsibility, and typically gives the role a few days a month. The SGaaS principal deliberately holds no directorship, which preserves the independence of the challenge function, and carries the analytical workload of a career Chief Risk Officer between meetings: assumption mapping, document review, and adversarial scenario construction the board sees only as distilled output.
Who is SGaaS for?
FTSE 350 boards facing the Provision 29 internal controls declaration, PE-backed organisations preparing for exit, and regulated entities that need documented, independent challenge for FCA, PRA, or equivalent supervisory expectations. The common factor is a board whose decisions are large enough that an unexamined assumption is more expensive than the function that would have examined it.
Who provides SGaaS?
Marentis Labs Ltd, the London firm that originated the category. Every engagement is delivered personally by the founder, Owen Vallis, whose twenty years as a Group Chief Risk Officer span Credit Suisse, J.P. Morgan, Morgan Stanley, and SICO Bank. The canonical description of the model is the firm's research white paper.
Next Step
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