Siphonic Flow Mandiri

What Siphonic Flow Mandiri does

PT Siphonic Flow Mandiri (SFM) is an Indonesia-based B2B engineering and construction services company specializing in siphonic rainwater management systems for large-scale buildings and infrastructure. Founded in 2011 and built on 20+ years of management experience in siphonic systems dating to 2004 via its sister company PT GPS Indo Mandiri, SFM provides end-to-end project delivery including hydraulic design, proprietary calculation software execution, material supply, installation, and warranty service. Its core technology uses hydraulic principles to create full-bore flow in roof drainage, enabling horizontal pipe runs without slope, smaller pipe diameters (claimed at roughly one-third of gravity system sizing), and up to 35% total cost savings versus conventional gravity drainage.

The company's product portfolio centers on Siphonic Roof Outlets, a range of pipe materials (uPVC, HDPE, Cast Iron, Stainless Steel, Galvanized), the SFM SMART Design optimization methodology, and rainwater harvesting integration for green building certification. Its customer base spans aviation (multiple Indonesian airports including Soekarno-Hatta T3, Yogyakarta International Airport, Kualanamu), hyperscale data centers (Amazon CKG065, Microsoft JKT02, 11 total data center projects), government and national projects (IKN, Masjid Negara IKN, Bank Indonesia), commercial buildings (IKEA, Trinity Tower), sports venues (Jakarta International Stadium), and emerging verticals such as EV manufacturing (VinFast).

SFM operates a project-based, specification-driven B2B go-to-market targeting property owners, main contractors, architects, and consulting engineers who embed SFM systems into construction project specifications. Pricing is custom quote-based with multi-year contract cadence. The company holds ISO 9001:2015 certification (March 2026), Greenship Green Building certifications on multiple projects, and registered trademarks for the SFM Siphonic System and SFM SMART Design. Operations are based in Tangerang Selatan at the Taman Tekno BSD industrial estate with 41 employees. As of December 2024, the company had completed 124 projects covering 3.8 million square meters of roof catchment area, primarily within Indonesia with one overseas reference project in Timor-Leste.

Name

Siphonic Flow Mandiri

Legal name

PT Siphonic Flow Mandiri

Website

https://siphonicflowmandiri.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

PT Siphonic Flow Mandiri is an Indonesian B2B engineering firm that designs, supplies, and installs proprietary siphonic rainwater drainage systems for large-scale buildings, airports, data centers, and infrastructure, serving property owners, contractors, and consultants on a project basis.

Ownership category

akta.pro rank

Product category

Building Rainwater Drainage Engineering

NAICS

Water and Sewer Line and Related Structures Construction (23711), Water and Sewer Line and Related Structures Construction (237110), Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Stormwater & Drainage Infrastructure Construction (Sewer, Detention, Outfalls) (IMAFAGAF)

akta.pro secondary industries

Design & Engineering for Renewal/Expansion (Pipelines, Pump Stations, Treatment Plants) (EUANALAD), Sewer Pump/Lift Stations & Wet Wells (EUANACAC)

Keywords

• Siphonic roof drainage
• Rainwater management systems
• Building drainage engineering
• Roof drainage solutions
• Hydraulic drainage systems

Headquarters

HQ city

Tangerang Selatan

HQ country

Indonesia

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Siphonic System Design, Supply & Installation: Complete project-based services encompassing design and calculation, material supply, and professional installation of siphonic rainwater systems. Revenue is generated through one-time project fees for design and installation services, combined with product sales of pipes, fittings, and specialized siphonic components.
2. Integrated Rainwater Management Solutions: Consulting and system integration services including rainfall analysis, gutter sizing, rainwater tank design, drainage systems, and control chambers. Covers consultation through construction phases.
3. Training Services: Training facilities provided to enhance worker knowledge on SFM Siphonic System Technology.
4. Rainwater Harvesting System Integration: Engineering recommendations and integration services for gutter dimensions, rainwater tanks, and overflow pipe specifications, supporting rainwater harvesting and green building certification.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

Siphonic Flow Mandiri (SFM) designs, supplies, and installs siphonic rainwater management systems for large-scale buildings and infrastructure projects. The company delivers end-to-end project services covering hydraulic design, siphonic roof outlets, pipe and fittings (uPVC, HDPE, cast iron, stainless steel, galvanized), and on-site installation. It also provides integrated rainwater management including gutters, rainwater tanks, overflow pipes, and rainwater harvesting integration, supported by proprietary SFM SMART Design methodology and calculation software.

Product overview

Siphonic Flow Mandiri (SFM) offers a unified product and service portfolio centered on its proprietary Siphonic System technology for rainwater management. The core offering consists of SFM Siphonic System Design, Supply & Installation combined with Integrated Rainwater Management services. Supporting services include Training on SFM Siphonic System Technology and Warranty coverage. Key technology components include Siphonic Roof Outlets, Pipe & Fittings (in various materials including uPVC, HDPE, Cast Iron, Stainless Steel, and Galvanized), and Siphonic Calculation Software for hydraulic design. The portfolio also includes SFM SMART Design for material optimization and Rainwater Harvesting Integration for sustainable water reuse. All products are developed and manufactured in-house in Indonesia.

Differentiator

Problem solved

Functional benefit

Products and services

• SFM Siphonic System Design, Supply & Installation Complete project-based service from hydraulic design and calculation, through supply of siphonic roof outlets, pipes and fittings, to professional on-site installation. Delivered to property owners, main contractors, architects, and planning consultants on large infrastructure and building projects.
• Integrated Rainwater Management Consulting and system integration service covering rainfall analysis, gutter sizing, rainwater tank design, drainage systems, and control chambers, including rainwater harvesting integration for green building certification.
• Siphonic Roof Outlet Siphonic roof outlets with higher capacity compared to gravity drainage systems, installable in metal gutters or concrete roofs. Tested by independent institutions according to siphonic standards and codes. Sold as part of project supply.
• Pipe & Fittings Pipes and fittings in uPVC, HDPE, Cast Iron, Stainless Steel, and Galvanized materials, designed and supplied for siphonic systems with the ability to mix materials across different stacks per project requirements.
• Siphonic Calculation Software Proprietary hydraulic design software for sizing and engineering siphonic rainwater systems, based on well-established hydraulic principles and validated by independent institutions.
• Training on SFM Siphonic System Technology Structured training program delivered to contractors, installers, and project staff to build working knowledge of SFM siphonic system installation practices.
• SFM Siphonic System Warranty Warranty coverage bundled with installed siphonic systems to ensure long-term performance and customer satisfaction.

Quantifiable outcome

• Up to 35% total cost savings compared to conventional gravity systems
• +4 more outcomes

Named customers14 records

Segments7 records

Ideal customer profiles7 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Pipelife: European plastic pipe manufacturer offering siphonic roof drainage solutions across multiple European and emerging markets. Comparable product, customer segments, and B2B project-driven model.
• Geberit: Swiss multinational plumbing/sanitary systems group whose Geberit Pluvia is the globally recognized siphonic roof drainage system. Directly comparable product, target market (commercial/institutional roofs), and engineering-led specification model.
• Wavin: Netherlands-based pipe systems manufacturer offering the Quickstream siphonic roof drainage system. Closely comparable technology, customer base, and project-based specification sales motion.
• Valsir: Italian plumbing and drainage systems producer with the Rainplus siphonic rainwater drainage system. Direct competitor in the same niche with comparable engineering-led specification sales.
• Jay R. Smith Mfg. Co. US-based manufacturer of engineered roof drainage products including siphonic roof drain systems. Comparable niche product line and specification-driven sales through plumbing engineers and architects.
• Josam Company: US manufacturer of engineered roof drainage including siphonic drain systems for commercial buildings. Comparable niche product category and specification sales through plumbing consultants.
• HL Hutterer & Lechner: Austrian drainage systems specialist with siphonic roof drainage products. Comparable niche product portfolio and project-based specification model serving commercial and institutional buildings.

Broad incumbents

• ACO Group: Global drainage solutions provider covering surface, building, and infrastructure drainage. Broader portfolio than SFM, but with overlapping roof and stormwater drainage offerings and similar enterprise/infrastructure customer base.

Emerging players

• MIFAB: North American manufacturer of commercial drainage products with siphonic roof drain offerings. Comparable product technology for commercial roofs, smaller scale than Geberit or Wavin, with growing specification presence.

Others

• PT GPS Indo Mandiri: Siphonic Flow Mandiri's sister company and 2004 pioneer of siphonic systems in Indonesia. Related party operating in the same Indonesian siphonic market with overlapping technology base, but not a true competitive peer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCEEV3C0h-iNqtpUvSs2GZxg
• Facebookfacebook.com/100069233595148
• LinkedInlinkedin.com/company/pt-siphonic-flow-mandiri
• Instagraminstagram.com/siphonicflowmandiri

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 Siphonic Flow Mandiri