consolidated disclosure·Oliver Wyman does not publish its own non-financial reporting. The data shown below reflects the group's consolidated reporting under Marsh McLennan.

RVBA-OWY◇Private↑ part of Marsh McLennan

Oliver Wyman

Consulting

New York City·US

Subsidiaries 1 mapped

↓ Mercer

Verified credentials

carbon_neutral_otherCarbonNeutral certified2021CDP ClimateA-2023 SBTi Validated1.5°C

Company website

Website

Oliver Wyman: Impact-Driven Strategy And Consulting

Oliver Wyman is a leading international management consulting firm that combines deep industry knowledge and expertise to create breakthroughs for clients on their toughest issues.

oliverwyman.com ↗

Decarbonisation trajectory · all scopes

Scope 1 + 2· base 2019 · 109k tCO2eScope 3· base 2019 · 19k tCO2e

Headline intensities

Reporting year 2024·Values in USD ($)

Peer cohort: Consulting · lower is better

Revenue intensity

Carbon / $m revenue

28.6tCO2e / $m

Carbon per million dollars of revenue. The legacy industry-standard reference (CDP, MSCI). Useful for cross-sector context, but distorted by margin — high-margin firms appear artificially efficient. Read alongside the operational and asset intensities for the full picture.

Bottom quartile

better than 24% of peers

best 7.74n=12 peersworst 35.5

Operational intensity

Carbon / $m OpEx

37.5tCO2e / $m

OpEx (operating expenditure) is the running cost of the business — staff, services, energy, materials. This shows how carbon-intensive operations are per million dollars of spend. Removes the margin distortion that revenue-based ratios introduce.

Below median

better than 26% of peers

best 8.23n=12 peersworst 51.0

Economic intensity

Carbon / $m EVIC

5.50tCO2e / $m

EVIC (Enterprise Value Including Cash) is the firm's total capital footprint — equity + debt + cash + minority interest. The EU's standard intensity measure (SFDR PAI 3) — answers: how much carbon does each million of capital deployed in this business produce?

Below median

better than 47% of peers

best 2.95n=6 peersworst 16.2

Asset intensity

Carbon / $m PP&E + leased

179tCO2e / $m

PP&E (Property, Plant & Equipment) plus leased real-estate assets is the firm's physical infrastructure on the balance sheet. This shows the carbon intensity of that physical footprint — uses Scope 1+2+3 for consistency with the other headline intensities. Surfaces stranded-asset risk for asset-heavy firms.

Above median

better than 55% of peers

best 31.2n=12 peersworst 1.3k

Workforce intensity

Carbon / FTE

0.41tCO2e / FTE

Carbon per FTE (full-time-equivalent employee) — the diagnostic measure for people-leveraged businesses where headcount, not capital, drives delivery. Captures the office, energy and travel footprint per person.

Bottom quartile

better than 22% of peers

best 0.02n=15 peersworst 0.41

Climate action evidence

12 records · 2 sources

Carbon credits retired

173,747 tCO2e

12 retirements · FY2019–2024 · third-party verified

By credit quality

Durable removals635 tCO2e(0%)
Nature-based removals28,612 tCO2e(16%)
Avoidance / reductions45,000 tCO2e(26%)
Unclassified99,500 tCO2e(57%)

Retirement records(top 8 by volume of 12)

2023 Ecoparque Candeias Landfill Gas Project · gold_standard45,500 tCO2e
2022 A-Gas V12 · acr45,000 tCO2e
2020 Vichada Climate Reforestation Project (PAZ) · gold_standard23,400 tCO2e
2023 Heartland Methane Abatement and Land Restoration Project 2 · acr20,000 tCO2e
2023 ILTF/NICC & Mississippi Band of Choctaw Indians Forest Carbon Project · acr14,259 tCO2e
2022 Flathead Ridge Ranch Forest Carbon Project · acr10,000 tCO2e
2020 Vichada Climate Reforestation Project (PAZ) · gold_standard6,600 tCO2e
2019 Humbo Ethiopia Assisted Natural Regeneration Project · gold_standard4,000 tCO2e

+ 4 more retirements not shown

Renewable electricity

84 %

Self-reported renewable electricity share, FY2025

Sources

· berkeley_voluntary_registry
· Puro.earth Registry

Registry retirements are direct evidence; commitments are forward-looking pledges. EPA snapshot covers FY2019–FY2020.

Targets

Near-term

2 targets

Scope	Base	Target	Reduction	Alignment	Progress	Status
Scope 1 + 2Absolute	2019	2030	−50%	1.5°C	−73.4% reductionof −50% target · 147% there	On track
Scope 3	2019	2030	−55%		−0.0% reductionof −55% target · 0% there	Off track

Long-term

2 targets

Scope	Base	Target	Reduction	Alignment	Progress	Status
Scope 1 + 2Absolute	2019	2050	−90%	1.5°C	−73.4% reductionof −90% target · 82% there	On track
Scope 3	2019	2050	−97%		−0.0% reductionof −97% target · 0% there	Off track

Net zero

1 target

Scope	Base	Target	Reduction	Alignment	Progress	Status
Scope 1 + 2 + 3	2019	2050	—	1.5°C	absolute-value target	—

⚠ Some targets show progress vs the earliest extracted year as a baseline approximation. The real base-year value will be used once historical reports are extracted.

Progress · absolute tCO2e

Scope 1 + 2 trajectory vs target

Scope 1 + 2 · 50% by 2030 · 1.5°C

ActualLinear1.5°C

Scope 3 trajectory vs target

Scope 3 · 55.00000000000001% by 2030

ActualLinear1.5°C

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Latest news· last 5 of 41

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Marsh McLennan businesses unified under new Marsh brand
CEO message announces bringing all businesses together under a new Marsh brand to deliver greater value across risk, reinsurance, talent, health, investments and consulting.
2025
Acquisitions of McGriff and Cardano
Marsh acquired McGriff and Cardano in recent years; these acquisitions affected the emissions inventory and required a re-baseline of 2019 figures.
2025
Limited assurance on emissions data
Marsh receives limited assurance on its emissions data per Greenhouse Gas Protocol; the report itself is not externally assured.
2025
Scope 3 long-term target expanded to include upstream transport and commuting
Long-term Scope 3 target covers purchased goods, capital goods, upstream transportation and distribution, business travel and employee commuting (97% per $M operating profit by 2050) — broader than the near-term target which excludes upstream transport and commuting.
2025
Re-baselined 2019 emissions to incorporate McGriff and Cardano acquisitions
Marsh re-baselined its 2019 emissions baseline to incorporate recent acquisitions including McGriff and Cardano. Restated 2019 figures appear in the appendix and serve as the baseline for SBTi targets.
2025