Making Transactions Executable
Advisory and execution leadership for acquisitions, divestments, separations and integrations where execution risk materially impacts outcomes. Experience across capital markets, banking, wealth and non-bank financial institutions.
Atheryon was founded on a simple observation:
Transaction value is lost when separation and integration requirements are discovered too late.
Service lines
- 01
Transaction Readiness
Understanding execution requirements before transaction commitments are made.
- Operational feasibility assessments
- Separation and integration diligence
- Bid-phase separation and integration support
- Transaction readiness reviews
- TSA strategy
- Execution risk assessments
- Pre-sign operational dependency analysis
- 02
Separation & Integration Strategy
Designing practical pathways to Day 1 readiness and operational independence.
- Separation and integration strategy
- Operating model design
- Day 1 readiness planning
- Transition sequencing
- TSA design and exit planning
- 03
Execution Leadership
Leading complex transitions from signing through implementation.
- Program mobilisation and governance
- Executive stakeholder engagement
- Contractual planning and milestone alignment
- Risk and issue management
- Day 1 execution
- TSA establishment and exit management
- Delivery oversight and execution assurance
- 04
Technology, Data & Migration Readiness
Planning for the information, technology and migration work that often decides whether a transaction lands.
- Structured data separation and migration assessments
- Unstructured data and content migration analysis
- Application and platform landscape assessments
- Data quality, ownership and reconciliation planning
- Migration readiness and cutover support
- Operational readiness analysis
- Technology separation and integration planning
- Analysis of the data dependencies that drive TSA scope
Three transaction workflowsInputs, AI agents, processing and outputs
Three points in a transaction where the operational answer arrives too late to be useful: before signing, through planning, and across the TSA period. Each workflow runs the same way, from the deal inputs available at that stage through to a deliverable the transaction can be governed against. Senior specialists direct the work, review every output and own the result.
Pre-Sign Execution Review
- Input
- Draft SPA and transitional services terms, proposed perimeter, entity and product footprint, application and data landscape, current control environment.
- AI agents
- Mapping deal clauses to the operational obligations they create; projecting the TSA schedule the perimeter implies; testing where regulatory and control continuity breaks at separation.
- Processing
- Execution risk register → stranded cost and dependency exposure → mitigations costed and assigned → position for negotiation.
- Output
- An execution risk assessment the deal team can act on: what the perimeter will cost to separate, which risks belong in price, warranties or conditions precedent, and which need a mitigation owner before signing.
Separation & Integration Planning
- Input
- Signed terms and agreed perimeter, target operating model, TSA service schedules, functional and technology dependency inventories.
- AI agents
- Tracing dependencies across entities, applications and data; sequencing work into cutover windows the business can absorb; deriving what has to be true on Day 1; mapping data lineage through migration.
- Processing
- Dependency map → sequenced separation plan → Day 1 readiness criteria by function → migration and cutover approach.
- Output
- A plan the transaction can be run against: what stands up on Day 1, what runs on a TSA and for how long, what has to be built to exit each service, and the migration sequence with lineage tracked field by field.
TSA Tracking & Exit
- Input
- Executed service schedules and charges, exit criteria, extension terms and reverse TSAs, standalone build progress by function.
- AI agents
- Testing which services can exit and which are held up by a dependency elsewhere; projecting exit dates against the standalone build; flagging scope and charges drifting beyond the schedule; verifying the receiving controls before an exit is signed off.
- Processing
- Service register → exit sequence by dependency → extension and stranded cost exposure → position for the Steering Committee.
- Output
- A TSA exit plan with a gate per service: what has to be operational to exit it, who owns that, what an extension costs if the date moves, and evidence of control transfer at closure.
How we engage
Atheryon engages as embedded senior specialists, working alongside your team from pre-sign review through Day 1 to operational independence and TSA exit. Pre-sign work can stand alone or lead into full delivery.
From pre-sign to operational independence
Atheryon works across three stages of the transaction lifecycle. Before signing, we review the transaction for execution risk so commercial terms reflect operational reality. From signing, we lead readiness for Day 1 and the early period of operation. Beyond Day 1, we manage the path to operational independence and TSA exit.
The earlier the engagement begins, the more options remain open. Pre-sign work shapes the agreement itself; post-sign work protects the value already committed. Transformation work draws on the same data and AI foundation that underpins both functions.
Governance and regulatory posture
Engagements run under program governance with executive stakeholder engagement, milestone alignment and structured risk and issue management. Atheryon works in regulated environments and plans for regulatory continuity across reporting and controls through separation and integration.
Where the work benefits from scale, Atheryon applies data-enabled and AI-assisted techniques under the same governance, with senior specialists directing the work and owning the outcome.