B. T. Lindsay AND Company

What B. T. Lindsay AND Company does

B.T. Lindsay & Co. is a privately held commercial HVAC installation and service company headquartered in West Hartford, Connecticut, founded in 1984 by Brian Lindsay. The firm operates with 11-50 employees and provides commercial HVAC design-build and ongoing service work. Its operating geography is Connecticut, per company filings. No detailed product line, pricing model, revenue mechanics, or technology stack is described in the available sources.

The publicly documented strategic posture is regional and partnership-led: on 2025-06-12, B.T. Lindsay & Co. announced a mutual partnership with Air Temp Mechanical Services and PremiStar in Hartford, CT. Air Temp Mechanical is described as Connecticut's largest independent HVAC contractor with over 100 licensed service technicians, offering maintenance, energy audits, sheet metal fabrication, mechanical services, plumbing, and Honeywell building controls. The PremiStar branding is co-displayed on Air Temp's identity, indicating a parent or affiliate relationship. The partnership positions B.T. Lindsay to access capabilities beyond its standalone profile, including energy audits, building controls, and Dunham-Bush equipment channels, though specific scope and economics of the alliance are not disclosed.

Revenue, ownership, certification, and customer data are absent from the provided sources. No patents, trademarks, awards, management team details beyond the founder, regulatory actions, or acquisition history are recorded. Based on these gaps, B.T. Lindsay & Co. should be characterized as a small, long-tenured regional commercial HVAC contractor whose recent strategic signal is consolidation-oriented rather than growth-funded.

Name

B. T. Lindsay AND Company

Legal name

B.T. Lindsay & Co.

Website

https://btlindsayhvac.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

B.T. Lindsay & Co. is a privately held commercial HVAC design-build and service company founded in 1984 in West Hartford, Connecticut, serving commercial clients regionally. It recently partnered with Air Temp Mechanical and PremiStar to expand capabilities.

Ownership category

akta.pro rank

Product category

Commercial HVAC Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Building Automation & Controls (BAS/BMS) Contracting (IMAFALAE)

Keywords

• Commercial HVAC installation
• HVAC design build
• HVAC service contractor
• Commercial mechanical services
• HVAC maintenance repair

Headquarters

HQ city

West Hartford

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales

Core offering

B.T. Lindsay & Co. is a Connecticut-based commercial HVAC contractor that provides design/build, installation, and service for heating, ventilation, and air conditioning systems. The firm serves commercial customers with HVAC contracting services and operates in partnership with Air Temp Mechanical Services and PremiStar.

Product overview

Based on the source data, B.T. Lindsay & Co. is referenced in a partnership context with Air Temp Mechanical and PremiStar in Hartford, CT. The available sources do not provide specific information about B.T. Lindsay & Co.'s own product or service offerings, product architecture, or named products/modules.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial HVAC Design and Build

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered core.

• Air Temp MechanicalcoreStrategic or Co-development Partner · 12 June 2025B.T. Lindsay & Co. has partnered with Air Temp Mechanical in Hartford, CT. Air Temp Mechanical Services is Connecticut's largest independent HVAC contractor with over 100 licensed service technicians offering 24/7 services including maintenance, energy audits, sheet metal fabrication, mechanical services, and building controls.
• PremiStarcoreStrategic or Co-development Partner · 12 June 2025B.T. Lindsay & Co. has partnered with PremiStar in Hartford, CT. PremiStar is associated with Air Temp Mechanical Services as shown in the company branding (AIR-TEMP-LOGO-Premistar).

Recent moves1 record

Expansion highlights2 records

Broad incumbents

• Comfort Systems USA: Publicly-traded national provider of commercial HVAC, mechanical, and plumbing installation and services. Operates through a network of operating subsidiaries that compete in the same commercial HVAC market Lindsay serves, but at much greater scale.
• EMCOR Group: Fortune 500 mechanical and electrical construction, energy, and facilities services firm with a major commercial HVAC installation and service practice. Far larger than Lindsay, but operates in the same commercial HVAC contracting space with overlapping customer types.
• APi Group: Publicly-traded provider of safety, specialty, and industrial services with a meaningful HVAC and mechanical services footprint. Competes in adjacent commercial HVAC service work though as part of a broader portfolio.
• IES Holdings: Publicly-traded provider of electrical and mechanical infrastructure services, including commercial HVAC, plumbing, and building controls. Operates in the same commercial mechanical contracting market at significantly greater scale.

Direct peers

• McKenney's: Privately-held commercial mechanical contractor delivering HVAC, plumbing, and building automation design-build and service work. Operates a near-identical business model to Lindsay's commercial HVAC design-build offering.
• PremiStar: HVAC, plumbing, and mechanical services platform that has Air Temp Mechanical under its branding (per the Air Temp logo 'AIR-TEMP-LOGO-Premistar'). Operates commercial HVAC contracting businesses comparable to Lindsay, and is a direct strategic partner.
• Limbach Holdings: Publicly-traded commercial HVAC, plumbing, and building services contractor focused on design-build and maintenance for commercial and institutional customers. Closest publicly-traded analog to Lindsay's commercial HVAC design-build model.
• Air Temp Mechanical Services: Connecticut's largest independent HVAC contractor (100+ licensed service technicians) offering commercial mechanical services, sheet metal fabrication, building controls, plumbing, and energy audits. Directly comparable to B.T. Lindsay in commercial HVAC installation and service, and is in fact the company's announced 2025 strategic partner.
• ACCO Engineered Systems: Privately-held commercial HVAC, plumbing, and mechanical contractor performing design-build and service work for commercial, industrial, and institutional customers. Directly comparable in scope of commercial HVAC contracting services.
• Southland Industries: Large privately-held commercial mechanical contractor providing HVAC, plumbing, and fire protection design-build services. Operates in the same integrated design-build commercial HVAC segment Lindsay targets, with a similar service mix.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks4 records

Key highlights4 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about B. T. Lindsay AND Company