Industrial Steel & Boiler Services

What Industrial Steel & Boiler Services does

Industrial Steel & Boiler Services, Inc. (ISB) is a privately held industrial services company founded in 1991 and headquartered in Chicopee, Massachusetts. The company provides boiler and burner service, heat exchanger and deaerator maintenance, clean steam generator support, condensate return systems, steam specialties, ASME-certified steel and metal fabrication, safety relief valve and control valve services, flow meter products, and energy/audit services to industrial, commercial, and institutional facilities across the Northeast United States. Core technical capabilities include ASME-certified welding (stick, MIG, TIG), boiler retubing (water tube, fire tube, economizers, superheaters, air preheaters), pressure vessel fabrication, valve testing and certification, and steam system optimization, supported by ASME S, U, UV, and V designators, National Board NB, R, and VR stamps, and DCAMM certification enabling Massachusetts public-sector procurement access.

ISB operates a 55,000 sq ft fabrication facility equipped with CNC plasma cutting, rolling, shaping, shearing, and in-house machining, and dispatches field technicians from stocked service vans for 24/7/365 emergency response. The company is also an authorized assembler and distributor for Kunkle Valve and ARI-Armaturen, and has partnered with Vortek Instruments and JM Electrical to deliver flow meter products and installation services. Its customer base spans hospitals, industrial plants, educational institutions, power plants, government facilities, military, correctional facilities, marine, food and beverage, and construction.

Revenue is generated through a mix of emergency and planned field service work, recurring annual maintenance and service contracts, project-based steel and metal fabrication, valve and instrumentation product sales (Kunkle, ARI, Vortek), and engineering/energy audit engagements. Pricing is quote-based and not publicly disclosed; the company offers free quotes and consultations as the entry point to its service and contract offerings. Owner Alex Korobkov, who began his career as a boilermaker in 2001, leads the business, and ISB has recently extended its offering into plumbing and process piping.

Name

Industrial Steel & Boiler Services

Legal name

Industrial Steel & Boiler Services, Inc.

Website

https://isbservices.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

11–50 employees

Short description

ISB is a privately held Chicopee, MA-based industrial services provider founded in 1991, offering ASME-certified boiler, burner, valve, steel fabrication, and energy audit services to industrial, commercial, and institutional facilities across the Northeast United States.

Ownership category

akta.pro rank

Product category

Industrial Boiler and Pressure Vessel Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

Misc Industrial & Commercial Machinery & Equipment (3590), Steel Pipe & Tubes (3317)

akta.pro primary industry

Water Heater & Boiler Descaling/Flushing & Water Quality Treatment (HSAOACAH)

akta.pro secondary industries

Boiler Installation & Replacement (HSAOACAC), Tank, Vessel & Pipeline Inspection/Cleaning/Repair (API/ASME) (IMAIACAH), Testing, Inspection, Maintenance & Compliance Services (NFPA/Local Code) (HSAHAFAG), Security, Safety & Fire/Life Safety Management (BPABAAAE)

Keywords

• Industrial boiler services
• Pressure vessel fabrication
• Safety relief valves
• Metal fabrication services
• Steam system maintenance

Headquarters

HQ city

Chicopee

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Field Service & Repair (Emergency & Planned): On-site emergency repair and planned maintenance services for boilers, burners, heat exchangers, valves, and steam systems delivered by field technicians in stocked service vans. Revenue generated per service call, with emergency services available 24/7/365.
2. Maintenance & Annual Service Contracts: Recurring annual contracts offering scheduled maintenance, inspections, and priority emergency response to reduce customer downtime. Provides predictable recurring revenue from existing customer base.
3. Steel & Metal Fabrication (Shop & Field): Custom fabrication of carbon steel and stainless steel structures including tanks, pressure vessels, ductwork, conveyors, smokestacks, and specialty weldments from a 55,000 sq ft shop facility. Revenue per project/job, one-time per fabrication specification.
4. Valve & Instrumentation Product Sales: Sales of Kunkle valves (pressure relief, safety, blower, cryogenic), ARI-Armaturen valves (globe, butterfly, control), and Vortek flow meters as authorized distributor/reseller. Products range from ½" NPT to 8" flange. Revenue per unit sale.
5. Engineering & Consulting (Audits, Inspections): Energy audits (steam trap surveys, insulation audits, steam system audits, compressed air audits), deaerator inspections with non-destructive examination, and soft audits of condensate return systems. Revenue per audit/inspection engagement.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Industrial Steel & Boiler Services (ISB) provides on-site and shop-based boiler, burner, pressure vessel, valve, and steam system services, plus custom steel and metal fabrication, for industrial, commercial, and power plant customers across the Northeast United States. The company operates 24/7/365 emergency response, performs ASME- and National Board-certified repairs, sells Kunkle and ARI-Armaturen valves and flow meters as an authorized distributor, and offers recurring annual maintenance contracts.

Product overview

Industrial Steel & Boiler Services (ISB) is an industrial services company offering a comprehensive suite of boiler, burner, and energy management solutions. The portfolio is organized as a single integrated service platform centered on Boiler & Burner Services, complemented by specialized equipment services including Heat Exchangers & Water Heaters, Deaerators, Clean Steam Generators, and Condensate Return Systems. Supporting services include Steam Specialties (traps, pumps, regulators), Steel & Metal Fabrication (ASME-certified), Safety Relief Valves and Control Valves & Actuation (with Kunkle valve product resale), Flow Meters, and Energy Services (audits and optimization). The company also offers Maintenance & Annual Service Contracts to provide ongoing protection for customer facilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Boiler & Burner Services Comprehensive industrial and commercial boiler and burner services covering high and low pressure systems, steam and hot water, fire tube, water tube, and cast iron boilers, including emergency repairs, retubing, certified welding, and new installations for industrial, commercial, and power plant customers.
• Heat Exchangers & Water Heaters Complete heat transfer packages including design, fabrication, shop and field repair, full bundle replacement, and retubing services for heat exchangers used in steam systems, with yearly maintenance programs that increase efficiency and lengthen equipment life.
• Deaerator Services Inspection, maintenance, and installation services for boiler deaerators (spray or tray type), including non-destructive examination of vessels and complete repair solutions.
• Blowdown Heat Recovery Services Design and installation of systems that recover up to 90% of blowdown thermal value by pre-heating boiler make-up water, reducing energy costs with payback in under 12 months; multiple boilers can connect to a single heat recovery unit.
• Clean Steam Generator Services Installation and yearly maintenance contracts for clean steam systems serving hospitals, food and beverage, universities, and pharmaceutical facilities, including steam quality testing, feed water management, preventive maintenance, revalidation, rouging inspection, steam trap verification, and instrument recalibration.
• Condensate Return Services Design, fabrication, and installation of condensate recovery systems that return hot condensate to boilers, improving energy efficiency by recovering up to 16% of steam production energy.
• Steam Specialties Commercial steam heating system products including steam traps, condensate pumps, steam separators, regulators, strainers, flash tanks, pressure gauges, and steam system accessories from manufacturers with over 100 years of industry experience.
• Steel & Metal Fabrication ASME-certified custom steel and metal fabrication from a 55,000 sq ft shop, including cutting, rolling, shaping, shearing, CNC plasma cutting, machining, demolition, installation, and certified weld repairs for carbon steel, stainless steel, and structural steel.
• Safety Relief Valves National Board Certified VR repair facility offering safety relief valve sales, installation, maintenance, and repair, featuring Kunkle and ARI-Armaturen valve products and electronic AVK on-site testing that does not require facility shutdown.
• Control Valves & Actuation Comprehensive valve services for isolation valves (globe, gate, ball, butterfly, triple offset, diaphragm), boiler control valves, check valves, pressure regulators, and electric and pneumatic actuation, with in-place and in-shop repair capabilities from 1/4" to 60" and larger.
• Kunkle Valve Distribution Authorized stocking representative and assembler for the Kunkle valve product line, offering complete Kunkle pressure relief and safety valves from 1/2" NPT to 8" flange, including models 40R/40RL, 140, 930, 716H, 716, 756, 707, 766, 30, 537, 6252/6254, 300/600, 1 and 2, 71S/171/171P/171S, 338, 215V/337, 480/485/490, 616D, 19 and 20, 91/218/228, 189/363/389, 264/265/266/267, and 541/542/548 for steam, air, gas, and liquid applications meeting ASME, PED, and global standards.
• Flow Meters Products & Service Flow meter products and services for liquid and gas measurement, sold and serviced in partnership with Vortek Instruments, with installation and commissioning services provided through JM Electrical of Lynnfield, MA.
• Energy Services Comprehensive energy management services including steam trap testing, heat exchanger cleaning and efficiency optimization, insulation audits, steam system audits, and compressed air audits designed to reduce operating costs by up to 25% or more.
• Maintenance & Annual Service Contracts Recurring annual preventive maintenance contracts designed to meet rigorous facility demands and reduce downtime through scheduled inspections, cleaning, and ongoing system support, with priority emergency response for contract customers.

Quantifiable outcome

• Blowdown heat recovery systems can recover up to 90% of the blowdown thermal value with payback in under 12 months.
• +3 more outcomes

Named customers2 records

Segments10 records

Ideal customer profiles9 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Kunkle ValvecoreChannel Partner/ Reseller/ DistributorISB is a proud stocking representative and authorized assembler of Kunkle valves, offering prompt delivery of Kunkle products in sizes ranging from ½" NPT to 8" flange. Kunkle Valve manufactures pressure relief and safety valves for cryogenics to high-temperature systems, meeting ASME, PED, and global standards.
• ARI-ArmaturencoreChannel Partner/ Reseller/ DistributorISB is an authorized assembler and distributor of ARI-Armaturen valves, including globe valves, bellows sealed globe valves, and high-performance butterfly valves. ARI valves serve oil, shipping, breweries, food and beverage, and HVAC markets.
• JM ElectricalminorImplementation/ SI/ Consulting PartnerISB partnered with JM Electrical of Lynnfield, MA to provide electrical services for flow meter installation and commissioning. JM Electrical has hundreds of years of collective industry experience and is one of the largest and most successful electrical contractors in New England.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Fulton Companies: Fulton manufactures steam and hot water boilers and supports aftermarket service and parts for installed units in commercial and industrial settings. It is comparable to ISB's boiler service and repair business serving overlapping end markets.
• Hurst Boiler & Welding Co. Hurst Boiler designs and manufactures a full line of boilers and also supports field service, parts, and combustion services for industrial and commercial steam users. It competes with ISB in the same boiler service, repair, and steam system niche across the U.S.
• Johnston Boiler Company: Johnston Boiler manufactures fire-tube boilers and supports field service and parts for industrial and commercial steam customers. It competes with ISB in the same boiler service, repair, and replacement space.
• Powerhouse Industrial Services: Powerhouse Industrial Services is a regional industrial services provider offering boiler repair, pressure vessel work, and field services to plants in the U.S. It is closely comparable to ISB as a multi-trade industrial services contractor serving power and process customers in a defined region.
• Preferred Utilities Manufacturing Corporation: Preferred Utilities designs and manufactures burners, boilers, and control systems and supports field service for industrial and commercial heating customers. It is a direct competitor in burner and boiler service, particularly in the Northeast institutional market that ISB serves.
• R.W. Beckett Corporation: R.W. Beckett manufactures oil and gas burners and combustion controls and serves HVAC and industrial heating service markets. It overlaps with ISB's burner service, combustion, and controls work for commercial and light industrial customers.

Broad incumbents

• Cleaver-Brooks: Cleaver-Brooks is a major North American manufacturer of boilers and burners that also operates a nationwide service, parts, and aftermarket organization. It is comparable to ISB as a full-scope boiler, burner, and steam system provider serving commercial and industrial facilities, though at materially larger scale and with direct manufacturing.
• Babcock & Wilcox Enterprises: Babcock & Wilcox is an established provider of steam generation equipment and services to power plants and industrial customers. ISB overlaps with B&W's aftermarket service, retrofit, and boiler/pressure vessel repair work, particularly in power and heavy industrial accounts.
• Watts Water Technologies: Watts Water manufactures valves, flow products, and water system components used across plumbing, HVAC, and industrial applications. It overlaps with ISB's valve and flow meter distribution business (e.g., ARI, Kunkle, Vortek product lines) at a broader plumbing/mechanical scale.
• Burnham Holdings: Burnham Holdings owns multiple boiler and heat-transfer brands (Burnham, U.S. Boiler Company, Velocity Boiler Works) serving residential and commercial hydronic and steam markets. It competes with ISB on commercial boiler service and replacement, particularly in the Northeast where ISB operates.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/isbservices

Compliance8 records

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 Industrial Steel & Boiler Services