The Operating Layer
    for enterprise
    AI.

    Fixed outcome. Six weeks to working signal. We scope it, build it, and retain it.

    Delivery model

    Fixed

    Outcome, price, scope.

    Time to signal

    Week 4

    Demonstrated, not promised.

    Deployed

    Urhandleren

    Three production systems, live.

    Groundwork

    130+

    Executive AI conversations.

    02 — Sectors

    Built for enterprise's foundational sectors.

    Finance·Energy·Healthcare·Trade·Hospitality·Sovereign
    View the Energy deep-dive

    Every engagement begins where the institution already runs — its systems-of-record, its data, its decision points. The Operating Layer is built around what already exists, not in place of it.

    Coverage

    Global · enterprise & sovereign

    03 — The Operating Layer

    Models are commodity.
    The Operating Layer is where enterprise AI becomes durable.

    One canonical architecture sits behind every engagement. Three bands. The band beneath holds the truth of the business. The band above is where work happens — by people, by agents, in service of named outcomes. The middle is the layer we build.

    04
    Outcomes

    Decisions · Actions · Revenue · Risk

    03
    Actors

    A

    Agents

    Reasoning · tool use · handoff

    B

    People

    Operators · approvers · analysts

    Interaction Design — The surface where AI recommends and humans commit

    02
    The Operating Layer

    Context Graph

    Context

    Entities, relations, lifecycle, policy

    Memory

    Episodic + durable state

    Orchestration

    Routing

    Model + agent selection

    Tools

    Capability registry, action execution

    Evaluation

    Offline + online truth tests

    Governance

    Policy

    Permissions, audit, redaction

    Observability

    Traces, costs, drift

    Connectors

    Source adapters

    Read from systems of record

    Action bridges

    Write back to systems of record

    01
    Systems of record

    Source

    ERP

    Source

    CRM

    Source

    Inventory

    Source

    Finance

    Source

    Files

    Source

    External

    Truth lives below. Work happens above. We build the connective tissue between.

    Fig. 04 — Tellefsen Operating Layer

    The connective tissue between systems-of-record, agents, people, and outcomes. We build this for every client.

    04 — Engagement Model

    The Tellefsen Engagement Model

    From operating gap to operating layer in one quarter.

    Every engagement runs on the same three-stage rhythm. Fixed price, fixed outcome, our risk — never time-and-materials. Each stage delivers operational value on its own and earns the next.

    01

    Sprint

    8–12 WEEKS · START HERE

    We sit with the firm, map the substrate it has, find the operating gap, and produce the Operating Layer Map — the signed-off picture of what gets built and what it returns.

    Deliverable

    Operating Layer Map · signed off

    02

    Build

    ~90 DAYS · FIRST DEPLOYMENT

    The first slice of the operating layer, built live in the client's environment to a fixed outcome. Not a pilot — a production system, owned by the client at hand-over.

    Deliverable

    Production operating layer · keys handed over

    03

    Retain

    ONGOING · OPERATE & EXTEND

    The layer operates and evolves — new domains, new ministries, sovereign models plugged in when ready. Each addition extends the substrate without rebuilding it.

    Deliverable

    Living operating layer · monthly investment

    Fixed price · fixed outcome · our risk · never time-and-materials

    06 — The firm

    Tellefsen SPC is led by Christoffer Tellefsen — former Tech Director at Avidly, the world's largest HubSpot agency. The firm is operator-led: code is written, shipped, and operated by senior hands.

    07 — Begin

    Book a Sprint conversation.

    One call, forty-five minutes. We map the systems-of-record on your side and the named outcome you would put under contract. If a Sprint is the right next step, we say so. If it isn't, we say that too.

    Direct

    A short note is enough. We respond within one working day.

    By submitting you consent to a single follow-up email. We do not run marketing automation.