Carbon market decisions built around integrity.
JSC helps buyers, investors, developers and portfolio owners evaluate carbon projects, credits and climate assets before they commit capital, enter transactions or make claims — so climate decisions are grounded in stronger evidence and directed toward meaningful impact.
Assess the evidence. Understand the risks. Identify projects and credits you can stand behind.
Technical clarity for consequential carbon market decisions
JSC supports decisions around projects, credits, portfolios and methodologies — before uncertainty becomes larger commercial, technical or reputational exposure.
Buy or use carbon credits
Understand material integrity, additionality, carbon-accounting, MRV and claims exposure before procurement or use.
Sell or commercialize credits
Identify evidence gaps, integrity questions and buyer concerns that may affect market readiness or transaction confidence.
Invest in or prioritize assets
Compare projects and portfolios, identify material exposure and focus deeper diligence where it is most justified.
Develop, improve or review an asset
Test methodology fit, MRV readiness, baseline logic, auditability and commercialization potential.
Understand which carbon projects and credits you can stand behind.
A structured integrity assessment for existing carbon projects and credits, designed to turn complex evidence into clearer next steps.
Carbon Integrity Advisory → products and deliverables: the Carbon Integrity Report (CIR), the Carbon Credit Red Flag Report and a deeper Integrity & Risk Assessment where justified.
The CIR helps buyers, investors, brokers, marketplaces, portfolio owners and project developers understand how defensible the credits associated with a project are from an integrity perspective.
It identifies material red flags, evidence gaps, critical assumptions and priority follow-up questions across additionality, carbon accounting, permanence, MRV and methodology alignment.
How defensible are the carbon credits associated with this project?
Built on JSC's project-level Carbon Integrity Assessment Framework and currently being advanced in collaboration with COMSU.
Specialized advisory across carbon integrity and climate assets
Explore the service line that fits the project, portfolio, methodology or market decision you are facing.
Carbon Integrity Advisory
Assess how defensible existing projects, credits and issuances are. Delivered through the Carbon Integrity Report (CIR), the Carbon Credit Red Flag Report and, where justified, a Full Integrity & Risk Assessment.
Explore advisory →Carbon Portfolio Assessment & Prioritization
Compare, classify and shortlist multiple projects or credit opportunities — technical and commercial viability, priority flags and where deeper diligence is justified.
Explore portfolio work →Carbon Methodology & MRV Review
Review baselines, monitoring systems, accounting assumptions, evidence requirements, data quality and auditability.
Explore review →Independent Technical Review & Audit Readiness
An independent technical challenge before external validation, verification or investor diligence. JSC is not acting as a VVB.
Explore technical review →Evidence of how JSC works
Selected frameworks, assessment systems and technical-review approaches developed or applied through JSC's advisory practice.
Carbon Integrity Assessment Framework
A structured, expert-led framework for moving from project evidence to red flags, sensitivity analysis and decision-relevant integrity findings.
Carbon Portfolio Assessment & Prioritization
A controlled pre-due-diligence system — screening is typically the first stage — for comparing registry status, methodology integrity, MRV, crediting pathways and commercial actionability.
Carbon Methodology & MRV Review
A traceable review process linking technical findings, integrity implications, proposed resolutions and implementation requirements.
Audit, Verification & Carbon Rating Experience
Project-level judgement informed by validation, verification, MRV and carbon-credit integrity assessment across multiple standards. Experience informs JSC's independent technical review and audit-readiness work; JSC is not acting as a VVB or public rating agency.
A boutique independent advisory built on accumulated technical trajectory.
JSC Consultancy Services is a boutique independent advisory built on more than 15 years of research and technical work, including more than 6 years in carbon markets. It integrates perspectives that are often separated across the market: how methodologies are designed, how projects generate and document emission reductions, how evidence is audited, and how integrity risks are interpreted by buyers and investors.
JSC operates as a boutique independent advisory, with engagements led directly by founder and lead expert John Sandoval and selected collaborators or specialist expertise integrated when the scope requires it.
What are you evaluating?
Whether you are buying or selling credits, reviewing a project or portfolio, developing a carbon asset or addressing a methodology or MRV question, JSC can help identify the appropriate level of technical support.