EPA GHGRP · reporting year 2023 · Other

Northrop Grumman - GHG emissions profile

Scope 1 reported greenhouse-gas emissions across 3 reporting facilities in 3 states, from the EPA Greenhouse Gas Reporting Program.

MT CO₂e (2023)
110K
Reporting facilities
3
States covered
3
Overall rank
#1018

Data updated May 2026

Northrop Grumman is a other company that reported 110K metric tons of CO2-equivalent emissions in 2023 across 3 reporting facilities in 3 states, per EPA GHGRP data covering 2011–2023. Emissions increased 62% over the tracked period.

Emissions Insight: Northrop Grumman

Northrop Grumman reported 110K metric tons of CO2-equivalent in 2023, placing it at rank #1018 among all EPA Greenhouse Gas Reporting Program (GHGRP) reporters and #193 within the Other category. The company operates 3 reporting facilities distributed across 3 states, giving an average of approximately 37K metric tons of CO2e per facility. Only sites emitting 25,000+ metric tons of CO2e annually are required to report, so these figures represent the company's largest operational emitters rather than its entire carbon footprint.

Classified in the Other sector (NAICS code 336415), Northrop Grumman sits alongside peers subject to the same reporting thresholds under 40 CFR Part 98. Across the 13 reporting years on record (2011–2023), the data shows a rise of 62.3% in annual emissions. This multi-year lens is critical because year-on-year variation may reflect production volume, fuel mix, facility acquisitions or divestitures, and efficiency upgrades rather than underlying operational intensity.

For analysts and policy users, the key takeaway is that this profile reflects self-reported Scope 1 combustion, process, and fugitive emissions verified by the EPA, not Scope 2 purchased electricity or Scope 3 value-chain emissions. When comparing Northrop Grumman to other large emitters, weight the 3-facility footprint against the 110K MT total to understand concentration risk. California SB 253 and SEC climate disclosure rules will push many GHGRP reporters toward broader Scope 1–3 reporting over the next reporting cycles, so this EPA baseline will remain the comparable backbone for tracking corporate carbon performance.

Largest facilities by reported emissions

Northrop Grumman - top facilities (MT CO₂e)

Northrop Grumman Systems Cor…52KNorthrop Grumman Marine Syst…35KALLEGANY BALLISTICS LABORATORY23K

Northrop Grumman's largest reporting facilities by cumulative CO₂e

Source: EPA Greenhouse Gas Reporting Program (GHGRP) As of Reporting year 2023

Reported emissions over time

0.04M0.06M0.08M0.1M0.12M 2011201320152017201920212023 0.11M

Northrop Grumman annual reported GHG emissions, 2011–2023

Source: EPA Greenhouse Gas Reporting Program (GHGRP) As of Reporting year 2023

Northrop Grumman reported 110K MT CO₂e in 2023, compared with 68K MT in 2011 - a rise of 62.3% across the EPA GHGRP reporting record.

Facilities (3)

Facility Location Emissions (MT CO2e)
Northrop Grumman Systems Corporation
Other
Promontory, UT 52K
Northrop Grumman Marine Systems
Other
Sunnyvale, CA 35K
ALLEGANY BALLISTICS LABORATORY
Other
KEYSER, WV 23K

Frequently Asked Questions

How much greenhouse gas does Northrop Grumman emit?

Northrop Grumman reported 110K metric tons of CO2 equivalent (CO2e) in 2023, according to EPA Greenhouse Gas Reporting Program data covering 3 reporting facilities across 3 states.

How does Northrop Grumman rank among U.S. emitters?

Northrop Grumman is ranked #1018 overall among all EPA GHGRP reporting companies and #193 within the Other sector.

Is Northrop Grumman increasing or decreasing emissions?

Over 13 reporting years (2011–2023), Northrop Grumman's emissions have increased by 62.3%. This may reflect expanded operations or increased production.

How many facilities does Northrop Grumman operate?

Northrop Grumman has 3 facilities reporting to the EPA GHGRP across 3 states. Each facility emitting 25,000+ metric tons of CO2e per year is required to report.

What industry is Northrop Grumman in?

Northrop Grumman is classified in the Other sector (NAICS code 336415). Industry classification is based on EPA reporting categories.

Where does this emissions data come from?

All data comes from the EPA Greenhouse Gas Reporting Program (GHGRP), which requires U.S. facilities emitting 25,000+ metric tons of CO2e annually to report. Data is self-reported by facilities and undergoes EPA verification.

Emissions guides & analysis

Source: EPA GHGRP EPA GHGRP Data is based on facility self-reporting. Not environmental compliance advice

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Greenhouse Gas Reporting Program (GHGRP). Consult a qualified professional before making decisions based on this data.

Every figure on PlainCarbon is rendered directly from EPA Greenhouse Gas Reporting Program (GHGRP) data, no number is typed in by an editor. This page draws directly on the EPA Greenhouse Gas Reporting Program (GHGRP), no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.