Heating, ventilation and air-conditioning (HVAC) contractors · Massachusetts

Nashoba Air Inc.

Name: Nashoba Air Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Littleton, MA · ~49 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 2.9
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Nashoba Air Inc. runs at 102% of its industry's injury rate - about level with the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade C.

Nashoba Air Inc.: 2.9 TCR = 102% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 4y Form 300A (see methodology below)

Nashoba Air Inc. safety composite

Nashoba Air Inc. scores strongest on total case rate (tcr) (safer than 55% of same-industry peers) and weakest on dart rate (safer than 46%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

51/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.86 per 100 workers

Safer than 55% of industry peers
DART rate: D 1.48 per 100 workers

Safer than 46% of industry peers
Fatalities: D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

Nashoba Air Inc.: 0.0 → 3.0 TCR

Peak year 2020 @ 4.3 TCR · DART/TCR 0.52× in 2022

Nashoba Air Inc.'s TCR rose 3.0 from 0.0 in 2019 to 3.0 in 2022. Peak filing year was 2020 at 4.3 TCR. In 2022, DART was 0.52× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Littleton, MA ABOVE-IND · SMALL

Grade C · TCR 2.9 · 102% of ind

DART 1.5 DART
RANK #61/140
PHOTO HUMPHREY MECHANICAL,…
BOOK 4y book
INJ 6 inj
SIZE ~49 FTE

Nearest TCR peer: HUMPHREY MECHANICAL, INC. (0.0 TCR gap)

Read with this employer → · Industry book → · Massachusetts employers → · Look up another →

This site

2.9
HUMPHREY MECHA

2.9
MBI HVAC Inc

2.9
Mechanical Com

2.9
Blackmon Servi

2.9

What this shows Nashoba Air Inc. averages 2.9 TCR (102% of the Heating, ventilation and air-conditioning (HVAC) contractors BLS benchmark).

Nashoba Air Inc. TCR series: 2019=0 · 2020=4.3 · 2021=4.2 · 2022=3 · BLS 2.8

Where Nashoba Air Inc. falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 55% of graded establishments in this industry, whose median TCR is 3.3.

Grade C

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #61 safest of 140 Heating, ventilation and air-c employers in Massachusetts.

Nashoba Air Inc. (49 employees, TCR 2.9) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Nashoba Air Inc. has fewer employees than the Heating, ventilation and air-conditionin median and a lower injury rate than the industry's median TCR of 3.3. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	DART	Injuries
2022	3.0	1.5	2
2021	4.2	4.2	2
2020	4.3	2.1	2
2019	0.0	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MA · Littleton

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 39 employers in Littleton, MA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	HUMPHREY MECHANICAL, INC.	JACKSONVILLE, NC	2.9 TCR
NAICS-TCR	MBI HVAC Inc	ALLENTOWN, PA	2.9 TCR
NAICS-TCR	Mechanical Comfort, Inc.	AMES, IA	2.9 TCR
NAICS-TCR	Blackmon Service, Inc.	CHARLOTTE, NC	2.9 TCR
STATE-SIZE	G&F Precision Molding INC	DANVERS	49 FTE
STATE-SIZE	Main Office	RAYNHAM	49 FTE
STATE-SIZE	TANGO CONSTRCTION, INC.	FITCHBURG	49 FTE
STATE-SIZE	All In One/Moore Insulation	WEST BOYLSTON	49 FTE
CITY-NEAR	FT0	Littleton	2,118 FTE
CITY-NEAR	The Middlesex Corporation	Littleton	916 FTE
CITY-NEAR	Dover Saddlery Retail	Littleton	404 FTE
CITY-NEAR	Market Basket #77	Littleton	317 FTE
NAT-TCR	Sodexo at Swedish Covenant Hospital	Chicago, IL	2.9 TCR
NAT-TCR	Sodexo at Saginaw Sd	Saginaw, MI	2.9 TCR
NAT-TCR	Sodexo at P&G Albany Infrastructure	Albany, GA	2.9 TCR
NAT-TCR	Eagan PN Clinic	Eagan, MN	2.9 TCR
NAT-SIZE	C. Wright's Machine Tool, Inc.	Diana, TX	49 FTE
NAT-SIZE	PCI Sacramento ISS	North Highlands, CA	49 FTE
NAT-SIZE	Event Rents, LLC	Phoenix, AZ	49 FTE
NAT-SIZE	Sodexo at Georgetown College-Resident	Georgetown, KY	49 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2022, 2021, 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.