Sotherm
Sotherm is a Brazil-based B2B industrial services firm founded in 1995 that provides induction heat treatment and non-destructive testing for metal components. It serves major automotive OEMs, Tier 1 suppliers, and heavy equipment manufacturers from facilities in São Paulo state.
- Company typePrivate
- Founded1995
- HeadquartersMairiporã, Brazil
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Sotherm does
Sotherm Tratamento Térmico por Indução is a Brazil-based B2B industrial services company founded in 1995 in Mairiporã, São Paulo. The company specializes in induction heat treatment of metal components — primarily induction hardening (têmpera por indução) and tempering (revenimento) — combined with non-destructive testing services (Magna Flux magnetic particle inspection and Magnatest eddy-current inspection) and in-house production of custom inductors and showers. Its core technical platform comprises 40 progressive and medium/high-frequency induction machines capable of handling varied component geometries, supported by specialized laboratories for physical, hardness, and microhardness testing.
Sotherm generates revenue through per-job industrial service contracts under a quote-based pricing model, primarily serving large automotive OEMs and Tier 1 system suppliers (Fiat, Toyota, GM, Renault, Nissan, Mercedes-Benz, Bosch, Valeo, ZF, Schaeffler), commercial vehicle manufacturers (Scania, Eaton), and agricultural and heavy equipment OEMs (John Deere, Caterpillar, CNH Industrial). The company holds ISO 9001 certification and CQI-09 compliance and is homologated by leading manufacturers. Operations are delivered from two production facilities in São Paulo state — the original Mairiporã headquarters and a newer Cordeirópolis unit added in 2025 — both positioned to serve the Southeast Brazilian industrial corridor within roughly 30 km of São Paulo with reduced logistics lead times. The go-to-market motion is direct enterprise field sales, executed via website quote requests, WhatsApp Business, and phone-based engagement, with 11-50 employees overall.
Sotherm firmographics
Firmographics- Name
- Sotherm
- Legal name
- Sotherm
- Website
- https://sotherm.com.br
- Company type
- Private
- Founded year
- 1995
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Sotherm is a Brazil-based B2B industrial services firm founded in 1995 that provides induction heat treatment and non-destructive testing for metal components. It serves major automotive OEMs, Tier 1 suppliers, and heavy equipment manufacturers from facilities in São Paulo state.
- Ownership category
- akta.pro rank
Sotherm industry classification
Industry- Product category
- Industrial Heat Treatment Services
- NAICS
- Metal Heat Treating (332811), Industrial Process Furnace and Oven Manufacturing (333994), Coating, Engraving, Heat Treating, and Allied Activities (3328)
- SIC
- Industrial Process Furnaces & Ovens (3567), Services-Testing Laboratories (8734), Heating Equipment, Except Electric & Warm Air Furnaces (3433)
- akta.pro primary industry
- Heat Treatment & Thermal Processing Furnaces (Hardening, Annealing, Induction) (IMAHADAI)
- akta.pro secondary industries
- Industrial Furnaces, Kilns & Thermal Processing Equipment (IMAHAEAE), Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)
Keywords
Where Sotherm is headquartered
LocationHeadquarters
- HQ city
- Mairiporã
- HQ country
- Brazil
- HQ region
- Latin America
Offices2 records
Markets served
Sotherm business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Supply Chain
Revenue model
- Induction Heat Treatment Services: B2B industrial services providing induction tempering, conventional tempering, and non-destructive testing services for metal components. Services are tailored to customer specifications with custom process development. Revenue is generated through per-job service contracts based on component volume and complexity.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
Sotherm product offering
Product offeringCore offering
Sotherm provides industrial induction heat treatment and non-destructive testing services that increase the hardness, wear resistance, and durability of metal components for automotive and industrial manufacturers. The company operates 40 progressive and medium/high-frequency induction machines across two São Paulo-area facilities, offering induction hardening, conventional and induction tempering (revenimento), Magna Flux magnetic particle inspection, Magnatest eddy current testing, custom process development, and in-house production of inductors and showers.
Product overview
Sotherm offers a unified portfolio of induction heat treatment services, primarily serving industrial sectors with two core offerings: induction hardening/tempering services (têmpera por indução and revenimento) and non-destructive testing services (Magna Flux magnetic particle inspection and Magnatest eddy current inspection). The portfolio also includes complementary support services for custom process development and in-house production of specialized inductors and showerheads. The company operates modern facilities with 40 medium/high-frequency progressive machines, specialized laboratories for physical testing, hardness and microhardness analysis, and strategically located operations near São Paulo for efficient logistics.
Differentiator
Problem solved
Functional benefit
Products and services
- Têmpera por indução de alta performance (High-Performance Induction Hardening) High-performance induction hardening treatment applied to metal components to efficiently and controllably increase surface hardness and wear resistance, tailored to customer specifications and component geometry for automotive and industrial buyers.
- Revenimento em forno convencional ou por indução (Tempering in Conventional or Induction Furnace) Tempering process using conventional furnaces or induction to reduce internal stresses and improve ductility of metal components after quenching, applied to customer-supplied components and delivered with associated quality verification.
- Seleção por partículas Magnéticas (Magna Flux / Magnaflux Magnetic Particle Inspection) Non-destructive magnetic particle inspection process (Magnaflux) used to detect surface and subsurface discontinuities in ferromagnetic materials, performed on customer metal components for quality verification.
- Seleção por correntes parasitas (Magnatest Eddy Current Inspection) Eddy current testing method using Magnatest equipment to identify structural differences or defects in metallic components without damaging the material, delivered as a standalone quality verification service.
- Desenvolvimento de processos (Custom Process Development) Custom heat treatment process development service to optimize industrial processes and meet specific project requirements, contracted by customers needing tailored metallurgy outcomes.
- Fornecimento de indutores e duchas (In-House Inductor and Shower Supply) In-house manufacturing and supply of inductors and showerheads in varied geometries for specific induction heat treatment applications, sold or supplied to customers needing specialized tooling for their heat treatment processes.
Companies that use Sotherm
Customer profileNamed customers15 records
Segments3 records
Ideal customer profiles3 records
Sotherm technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Sotherm partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights5 records
Sotherm competitors and assessment
Company assessmentBroad incumbents
- Bodycote: World's largest commercial heat treatment services provider with ~165+ facilities globally. Directly comparable to Sotherm as a contract heat treater serving automotive, aerospace, and industrial customers, but at vastly greater scale and geographic breadth including Latin America.
- HEF Group (formerly HEF/IES): French-headquartered global surface engineering and heat treatment services group with significant automotive exposure. Competes with Sotherm in contract induction hardening and surface treatments for automotive drivetrain components.
- Inductoheat: Global leader in induction heating equipment manufacturing with associated services. Directly overlaps with Sotherm's induction heat treatment technology and serves overlapping automotive and industrial customers.
- Seco/Warwick: Global manufacturer of heat treatment furnaces and provider of heat treatment services, with strong presence in vacuum and atmosphere furnaces. Comparable to Sotherm's furnace/tempering business while also competing in equipment supply.
- Ipsen International: Global manufacturer of heat treatment furnaces and atmosphere equipment with service operations. Comparable in vacuum furnace and tempering technology; serves aerospace, automotive, and industrial OEM customers like Sotherm.
Direct peers
- Solar Atmospheres: US commercial heat treatment services provider specializing in vacuum and specialty heat treating for aerospace, medical, and industrial markets. Comparable services model with NDT capabilities and OEM customer base.
- Advanced Heat Treat Corp. Mid-sized US heat treatment services company offering induction hardening, ion nitriding, and through-hardening. Directly comparable in scale, service mix, and automotive/industrial customer focus.
- TMT - Tocco Induction Heating: Commercial induction heat treatment services and equipment provider. Closely comparable induction-focused technology and service offering to Sotherm, particularly for automotive drivetrain and bearing components.
- Paulo Products: US-based commercial heat treating company offering induction hardening, batch heat treatment, and NDT services. Highly comparable mid-sized services business model focused on automotive and industrial OEM customers.
Regional players
- Tratamento Térmico São Paulo / Brazilian regional heat treaters: Brazilian regional commercial heat treatment service providers operating in São Paulo industrial corridor. Direct geographic competitors to Sotherm for local OEM and Tier 1 supplier contracts.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Sotherm social profiles
Digital presenceSotherm compliance and trust
Trust signalCompliance2 records
Sotherm financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sotherm leadership team
Management profileNumber of profiles
Sotherm funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sotherm M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sotherm
What does Sotherm do?
Sotherm provides industrial induction heat treatment and non-destructive testing services that increase the hardness, wear resistance, and durability of metal components for automotive and industrial manufacturers. The company operates 40 progressive and medium/high-frequency induction machines across two São Paulo-area facilities, offering induction hardening, conventional and induction tempering (revenimento), Magna Flux magnetic particle inspection, Magnatest eddy current testing, custom process development, and in-house production of inductors and showers.
Is Sotherm a public or private company?
Sotherm is a private company. It is classified as unknown and is currently operating.
When was Sotherm founded?
Sotherm was founded in 1995. It employs 11 to 50 people.
Where is Sotherm based?
Sotherm is headquartered in Mairiporã, Brazil, in the Latin America region.
How does Sotherm make money?
One revenue line is on record: induction Heat Treatment Services.
Who are Sotherm's main competitors?
Broad incumbents on record are Bodycote, HEF Group (formerly HEF/IES), Inductoheat, Seco/Warwick and Ipsen International. Direct peers are Solar Atmospheres, Advanced Heat Treat Corp., TMT - Tocco Induction Heating and Paulo Products. Tratamento Térmico São Paulo / Brazilian regional heat treaters is listed as a regional player.
Does Sotherm have an API?
No public API is recorded for Sotherm.
What industry is Sotherm in?
Sotherm's product category is Industrial Heat Treatment Services. Its primary akta.pro industry code is IMAHADAI, Heat Treatment & Thermal Processing Furnaces (Hardening, Annealing, Induction), with a secondary code of IMAHAEAE, Industrial Furnaces, Kilns & Thermal Processing Equipment. Its NAICS code is 332811 and its SIC code is 3567.