Answer your Microsoft supplier GHG request with a consultant letter.
Keslio helps service businesses calculate the required emissions, document the methodology, organize evidence, and provide consultant letters for Microsoft supplier reporting.
People-led, not software-led
Built for teams without sustainability staff
Three accepted annual cycles
If the request is already in your inbox
You do not need to turn it into a broad ESG project.
You need a clear read of the Microsoft requirement, a practical data path, and a consultant-letter response that your team can stand behind.
The risk is not that you care too little. It is that the response looks improvised.
Microsoft supplier reporting sits in an awkward gap: too specific for a generic contact form, too technical for a quick internal spreadsheet, and too important to leave ambiguous.
The request sounds simple, then turns technical.
Scope 1, Scope 2, relevant Scope 3, service-level accounting, emission factors, evidence, and portal wording all need to line up.
The data lives everywhere except one clean file.
Finance, travel, utilities, procurement, cloud usage, HR, and operations records usually need to be turned into a defensible footprint.
A key customer relationship is attached to the response.
This is not a generic ESG exercise. It is a Microsoft supplier requirement that needs to look prepared, specific, and credible.
This is customer-response work. The goal is to protect the Microsoft relationship with a credible, documented answer.
From first read to reusable evidence pack.
The free review keeps the first step small. If the request fits, the project becomes a bounded consultant-letter engagement instead of open-ended sustainability work.
Free request review
Keslio reads the Microsoft request, checks the deadline and likely scope, and tells you what the next step should be.
Fixed-fee project quote
If it fits, you get a bounded quote with timeline, data needs, deliverables, and what Keslio needs from your team.
Calculation and evidence build
Scope 1, Scope 2, and relevant Scope 3 data are collected, calculated, documented, and organized for a buyer-facing response.
Consultant letter and refresh path
Keslio provides the consultant letter, supports clarification questions, and leaves the work ready for next year's refresh.
Fixed-fee projects, quoted after the free review.
Most simple service-business requests fall into a bounded project range. The exact quote depends on deadline, data quality, entities, and whether service-level accounting is required.
Get a fixed-fee quoteAnnual refresh
$2k-$4k
For returning or well-organized suppliers updating a prior-year footprint and consultant letter.
First-time service business
$3k-$8k
For a simple Microsoft supplier request with one main business entity and manageable data sources.
Service-level accounting
$5k-$15k
For requests that need emissions tied to a Microsoft service, project, contract, or business unit.
Complex scope
Quoted
For multiple entities, messy historical data, physical operations, or requests outside a consultant-letter project.
Relevant experience, not a generic claim.
Keslio has already supported the type of supplier this page is built for. Details are anonymized for confidentiality.
Relevant client
Microsoft supplier, service-business context
Keslio supported a Singapore-based outsourced marketing services provider supplying Microsoft.
Result
Accepted reporting work
The engagement covered annual GHG emissions calculations and consultant-letter reporting that was accepted.
Repeatability
Three annual cycles
The client returned across three consecutive disclosure cycles, which is the refresh behavior this offer is built around.
From confusing request to annual refresh.
The first year creates the evidence base. The next year should be faster, cleaner, and less stressful.
Request in hand
You paste the Microsoft wording, portal instruction, or deadline.
First read
Keslio confirms what the request means and what data is likely needed.
Credible response
The calculation, methodology, evidence, and consultant letter come together.
Annual refresh
Next year starts from a working base instead of a blank spreadsheet.
Have the Microsoft request in front of you?
Paste the details below. Keslio will review the request, ask clarifying questions or schedule a short call if needed, and send a fixed-fee quote with timeline and data needs.
Best if you already received a request, template, portal instruction, or deadline.
The free review does not include calculations or consultant-letter issuance.
Relevant resources
Read the guide for more context on Microsoft supplier GHG reporting requirements and how a consultant-letter response is usually prepared.
FAQ
Short answers for the first questions a Microsoft supplier usually has before sharing the request.
Can Keslio provide consultant letters?
Yes. Keslio provides consultant letters for Microsoft supplier GHG reporting projects when we complete the emissions calculation, methodology documentation, and supporting evidence review.
What happens in the free review?
Keslio reviews the Microsoft request, asks clarifying questions or schedules a short call if needed, then sends a fixed-fee quote with the likely timeline, data needs, and deliverables.
What data is usually needed?
Most service businesses need utility, fuel, travel, purchased goods and services, employee commuting, cloud or software usage where relevant, and finance records that support Scope 1, Scope 2, and relevant Scope 3 calculations.
What if the request asks for something outside a consultant letter?
Keslio will flag that during review before quoting the project. This page is focused on Microsoft supplier GHG calculation and consultant-letter projects.