About JSC

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.

Experience architecture

Where the perspective comes from

15+ years
Research & technical work
6+ years
Carbon markets
Methodology
Development & review
Projects
Development & climate technologies
Audit
Validation, verification & review experience
Integrity
Carbon integrity & risk assessment experience
Standards
Multiple standards & market contexts
Scale
Project, portfolio & methodology-level work

These are experience descriptors, not claims of current accreditation. JSC is not a validation/verification body, certification body or public carbon-rating agency.

JSC was created to bring together perspectives that are often separated across the carbon market: how methodologies are designed, how projects generate and document emission reductions, how evidence is audited, and how integrity risks are interpreted by buyers, brokers and investors.

  • Research and technical analysis
  • Carbon methodology development and review
  • Project development and climate-technology advisory
  • Validation, verification and audit experience
  • Carbon-credit integrity assessment and risk ratings
  • Portfolio and asset-level decision support

JSC operates as a boutique independent advisory, with engagements led directly and selected collaborators or specialist expertise integrated when the scope requires it. Founder and lead expert John Sandoval leads engagements, reviews the evidence and forms the conclusions; analytical tooling is used to accelerate work rather than to replace judgement.

Expertise

Four connected areas of technical depth

Carbon Integrity & Risk Assessment

  • Additionality
  • Carbon accounting
  • Permanence
  • Over-crediting
  • Integrity frameworks

Methodologies & MRV

  • Baseline design
  • Monitoring systems
  • Methodology review
  • Auditability
  • Validation and verification

Carbon Markets

  • Voluntary markets
  • Compliance markets
  • Article 6
  • Carbon asset development
  • Commercialization

Climate Technologies

  • Waste and landfill methane
  • Methane mitigation
  • Renewable energy
  • Industrial decarbonization
  • CCS/CCUS
  • Carbon removals
Who JSC works with

Organizations making consequential carbon decisions

Climate investment fundsCorporate carbon credit buyersPortfolio owners and asset managersProject developersBrokers and intermediariesClimate-tech companiesCorporate sustainability teams
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