Sigma Manufacturing

What Sigma Manufacturing does

Sigma Manufacturing LLC is a privately held custom industrial fabricator headquartered at 4875 Deen Road in Marietta, Georgia. Founded with the arrival of its core leadership team around 2011 — Director/General Manager Tony Driskill, Quality Assurance Manager (and AWS QC1 Certified Welding Inspector) Frank LeBaron, Project Management Director Kevin Hoseclaw, and Quality Control Inspector Dennis Aubrey, later joined by Facility Manager Michael Breeding in 2017 — the company operates a 40,000 sq ft fabrication facility with 50-ton and 60-ton overhead cranes, an 8'×20' plasma cutting table, CNC pipe coping, plate rolling, tank turning rolls, and a 1,500 sq ft UL-listed panel shop. It maintains ASME U, S, and R stamps, AWS D1.1, CSA W47.1 Division 2, ASME B31.1 and B31.3, and multi-process qualified welding procedures (GTAW, GMAW, FCAW, SAW) qualified to ASME Section IX.

The company's product portfolio centers on ASME-certified pressure vessels and boilers, skid packages (pump skids, fuel train skids, heat exchanger skids), B31.1/B31.3 pipe fabrication with 100% radiography, process and safety control systems via the in-house UL-listed panel shop, and specialized thermal equipment including direct fired water bath heaters, convection heaters, hot oil systems, and temperature control units. End markets span oil and gas (natural gas production, North Slope Alaska), semiconductor manufacturing, municipal wastewater (South Florida), asphalt roofing shingles manufacturing, and adjacent industrial process customers. The website references Sigma Thermal via a link, suggesting a related-entity relationship whose formal corporate structure is not disclosed in the input data.

Sigma Manufacturing runs a sales-led, project-based business model. All engagements are one-time custom fabrication contracts quoted on specification, with pricing not publicly disclosed and customer relationships initiated via phone, email, and the company website. The company employs 51–100 people, has no parent company, no public listing, and no recorded venture or institutional funding rounds. Geographic reach has extended beyond the Southeastern United States — where the facility's proximity to the ports of Savannah, Charleston, and Jacksonville is a logistical advantage — into Canada (supported by CSA W47.1) and Alaska, though the Southeast remains the operational base.

Name

Sigma Manufacturing

Legal name

Sigma Manufacturing LLC

Website

https://sigmamanufacturing.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

51–100 employees

Short description

Sigma Manufacturing LLC is a privately held custom industrial fabricator in Marietta, Georgia, producing ASME-certified pressure vessels, boilers, skid packages, piping, and process heating equipment for oil and gas, semiconductor, municipal, and industrial process customers.

Ownership category

akta.pro rank

Product category

Industrial Process Equipment Manufacturing

NAICS

All Other Industrial Machinery Manufacturing (333248), Industrial Machinery Manufacturing (33324)

SIC

Fabricated Plate Work (Boiler Shops) (3443), Special Industry Machinery (No Metalworking Machinery) (3550), Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Process Skids & Modular Process Systems (Packaged Units) (IMAHAEAH)

akta.pro secondary industries

Pressure Vessels, Columns & Storage Tanks (ASME/Process Vessels) (IMAHAEAF), Welding, Fabrication & Field Machining Services (On-site) (IMAIACAD)

Keywords

• Process equipment fabrication
• Pressure vessel manufacturing
• Industrial piping fabrication
• Skid package fabrication
• Metal fabrication services

Headquarters

HQ city

Marietta

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Custom Process Equipment Fabrication: Project-based custom fabrication of process equipment including piping assemblies, skid packages, fired process heaters, convection coils, radiant coils, and equipment housings. Revenue generated through one-time project contracts for industrial customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Sigma Manufacturing is a custom industrial fabricator that designs and builds ASME-certified process equipment including piping assemblies, skid packages, fired process heaters, convection coils, radiant coils, pressure vessels, boilers, and equipment housings. The company delivers end-to-end fabrication under one roof—from simple spool pieces to complex process piping skids—from its 40,000 sq ft facility in Marietta, Georgia, complemented by an in-house UL-listed control panel shop.

Product overview

Sigma Manufacturing is a fabrication facility offering a portfolio of integrated industrial products and services centered on process equipment fabrication. The core offering includes ASME U, S & R certified pressure vessels and boilers, complemented by skid packages (pump skids, fuel train skids, heat exchanger skids), pipe fabrication, and automation/control systems. The company also manufactures specialized thermal equipment including hot oil systems, temperature control units (TCU), direct fired water bath systems, and convection heaters. A dedicated UL Listed Panel Shop provides control panel assembly and testing services. All products are fabricated in-house at the company's 40,000 square foot Georgia facility with lifting capacities up to 60 tons.

Differentiator

Problem solved

Functional benefit

Products and services

• ASME Pressure Vessels and Boilers
• Skid Packages
• Custom Pipe Fabrication
• Thermal Process Heaters
• UL Listed Panel Shop Services
• Automation and Control Systems Integration

Named customers5 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Chart Industries: Public industrial equipment maker specializing in cryogenic and process equipment for energy and industrial end-markets. Overlaps with Sigma's pressure vessel and process skid capabilities, though at much larger scale and broader portfolio.
• Mueller Industries: Diversified industrial manufacturer of copper, brass, aluminum, and steel products with fabrication operations serving plumbing, HVAC, and industrial markets; overlaps with Sigma at the metal-fabrication level but with much broader product breadth.
• Babcock Power: Established heat-recovery and boiler OEM providing engineered steam generation and process equipment to utilities and industrial customers; overlaps with Sigma's boiler and process heater offerings as a larger, established competitor.
• Babcock & Wilcox: Large, publicly known OEM of boilers, pressure vessels, and process heating equipment serving utilities, refineries, and industrial customers. Overlaps directly with Sigma's ASME-stamped boiler/vessel work but at much broader scale and global reach.

Direct peers

• Optimus Industries: Industrial fabrication shop producing custom ASME-coded pressure vessels, skids, and process equipment for chemical, oil & gas, and industrial customers — directly comparable in scope and customer mix to Sigma.
• Sigma Thermal: Sister/affiliated thermal-systems specialist explicitly linked from Sigma Manufacturing's website; both serve overlapping industrial customers with fired heaters, thermal fluid systems, and process equipment, suggesting shared ownership or close operational ties.
• HRS Heat Exchangers: Specialty heat-exchanger and skid manufacturer serving food, chemical, and industrial customers with engineered, often ASME-certified, equipment; comparable to Sigma's heat-exchanger skid, coil, and pressure vessel offerings.
• Paul Mueller Company: Privately held stainless steel process equipment fabricator producing tanks, vessels, heat exchangers, and custom industrial equipment for chemical, food, and pharmaceutical customers — directly comparable custom fabrication model with code-stamped work.
• John Zink Hamworthy Combustion (Koch Engineered Solutions): Leading manufacturer of process burners, fired heaters, and thermal equipment for oil & gas, petrochemical, and industrial customers; directly comparable to Sigma's fired process heaters and convection coils business.
• Selas Heat Technology: Established industrial combustion and process heating equipment manufacturer focused on fired heaters and process burners, broadly competing with Sigma's fired process heaters and convection coils in petrochemical and industrial applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/SigmaManufacturing
• LinkedInlinkedin.com/company/sigma-manufacturing

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

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 Sigma Manufacturing