Section 7 of 11 — Go-to-Market
One deep win, then four verticals — partner-amplified from Year 2
Celium’s GTM is sequenced by integration complexity and proof requirement, not by market size. Nature gives us the first defensible PE certificate. IT gives us the enterprise software wedge. Government and construction follow once the integration playbook is proven and the partner channel is live.
Phase 1 Q1–Q4 2026
Nature wedge — first PE certificates in the wild
Founder-led sales. Identify 3–5 nature programme operators with acute payment friction. Deploy Nature pack v1. Objective: first signed PE certificate accepted by a buyer without modification.
Target: 3–5 logos ARR target: $150–250k Sales cycle: 90–135 days Channel: founder-led
Phase 2 Q5–Q8 2027
IT managed services — enterprise software wedge
Seed round enables first AE hire. IT pack v1 deployed. Jira/ServiceNow integration creates chokepoint. Government pack v0 piloted with a single audit-firm partner.
Target: 8–12 logos ARR target: $600k–1M Sales cycle: 90–135 days Channels: AE direct + partner pilot
Phase 3 Q9–Q16 2028–29
Government & partner channel — Series A scale
Series A enables partner channel investment. Government pack v1 live via audit firm distribution. Construction lighthouse customer secured. Partner certification programme launched.
Target: 30–50 logos ARR target: $3–5M Channels: AE + certified partners Geographies: UK + EU + US
Phase 4 2030–2035
Construction at scale — ecosystem participant model
Construction pack v1 deployed. Hub-and-spoke model activates: each head contractor brings 5–10 subcontractors onto the platform. PLG self-serve layer launched. Full vertical coverage across all four sectors.
Target: 473 logos by 2035 ARR target: $191.8M Channels: AE + partner + PLG Geographies: 7 markets

The sequencing is driven by integration complexity and proof requirement, not by market size. Construction is the largest prize ($4tn GPV) but requires a proven playbook. Doing nature first in a hard context makes the IT and construction deployments faster and more credible.

Channel evolution — four modes, each unlocking the next
Founder-led direct
Founders carry the first 5–10 logos personally. Long sales cycles tolerated in exchange for deep product feedback and reference-customer quality.
CAC: ~$90k (Nature) Cycle: 90–135 days Win rate: 27%
Active: Phase 1–2 (Y1–Y2)
AE direct sales
First Account Executives hired after Seed round. Playbook codified from founder deals. Focus on IT and government verticals with established procurement processes.
CAC: ~$65k blended Quota: ~$480k ARR/AE Cycle: 90–180 days
Active: Phase 2+ (Y2–Y4)
Certified partner channel
Audit firms, MRV providers, assurance consultants, and construction QS firms become certified Celium deployment partners. They bring existing client relationships and domain credibility.
CAC: ~$45k (partner) LTV:CAC: ~18× Target: 65% of deployments
Active: Phase 3+ (Y3+)
PLG self-serve
Product-led growth layer for smaller programme operators and SME contractors. Low-friction onboarding via magic links. Upgrades to enterprise tier as volume scales.
CAC: ~$8k LTV:CAC: ~36× ACV: ~$36k
Active: Phase 4 (Y5+)

The partner channel is the most important GTM investment in Years 2–4. Partners reduce CAC by ~35%, bring pre-qualified pipeline, and accelerate time-to-PE in government and construction where buyer trust depends on domain credibility rather than software reputation.

Three partner archetypes — each amplifies a different part of the GTM motion
Distribution
Audit & assurance firms
Big 4 and mid-tier audit firms already advise on grant compliance, nature programme governance, and ESG assurance. Celium is a delivery tool for their recommendations.
Primary channel for: Government, Nature
Technical
MRV & field data providers
MRV providers who generate the underlying evidence have a direct incentive to connect their outputs to Celium’s EP intake — it makes their data useful for payment, not just reporting.
Primary channel for: Nature, ESG
Distribution
QS & construction consultants
Quantity surveyors and project management consultants are already involved in milestone certification and payment applications. Celium formalises and digitises their existing role.
Primary channel for: Construction
Technical
ERP / AP system integrators
SIs who implement SAP, Oracle, and NetSuite can embed Celium as the upstream payability layer in their standard delivery methodology.
Primary channel for: IT, Government
Strategic
Financial institutions & insurers
Banks and insurers who want to attach capital to nature and construction programmes have a strong incentive to recommend Celium to their clients as the infrastructure that makes the cashflow financeable.
Pull channel: all verticals
Distribution
Impact & sustainability advisors
Advisory firms that design nature finance structures and TNFD frameworks already touch the clients Celium needs. Celium is the operational layer for programmes their advice creates.
Primary channel for: Nature

Partners are not just a distribution channel — they are credibility proxies. In government and construction, a buyer’s decision to adopt Celium is often contingent on their trusted advisor recommending it. Partner certification is therefore a GTM requirement, not just an efficiency play.

The GTM flywheel — how each win makes the next win easier
1
First PE certificate accepted by a real buyer
Proof point that a Celium-generated Payment Eligibility artefact can pass a buyer’s internal approval process without modification. This is the hardest step and the gate to everything else.
2
Buyer circulates the PE certificate internally
AP, finance, and legal teams at the buyer’s organisation interact with a Celium artefact for the first time — via organic forwarding, not a sales motion. Creates warm inbound at the buyer’s other programmes.
3
Auditor or insurer relies on the artefact
The first time an external auditor or insurer accepts a Celium PE certificate as part of their own process validates the standard beyond the buyer-operator relationship. Becomes a reference case for regulated contexts.
4
Partner learns the deployment playbook
An audit firm or MRV provider who successfully deploys Celium with their first client now has a repeatable offering. They sell it to their broader client base — each new deployment extends Celium’s reach without incremental Celium sales cost.
5
Pack reuse compresses time-to-PE
The second deployment in a vertical uses the pack built in the first. The third is faster still. As reuse rate climbs, the marginal cost of onboarding a new logo falls — NRR improves and CAC drops simultaneously.
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Standard emergence accelerates adoption
Once enough programmes in a vertical use Celium artefacts, the industry begins to expect them. Buyers start requesting Celium-format PE certificates before any sales motion. Adoption becomes pull-driven.

The flywheel compresses at each stage as pack reuse, partner deployment, and standard emergence reduce the marginal cost of each new logo. By Phase 4, the GTM motion is predominantly inbound and partner-led — founder and AE effort shifts to partner enablement and enterprise expansion rather than cold outreach.