Singapore Airlines posted SGD 22.8 billion in revenue for FY2023/24, making it one of the most profitable commercial carriers in the world. Its supply chain is large and deliberately structured. SIA sources across more than 80 countries, and its Singapore procurement team actively works with Enterprise Singapore and industry groups to develop local and diverse suppliers.
If you run a women-owned, minority-owned, or locally certified diverse business in Singapore or the broader APAC region, there is a real path into SIA's supply chain. It requires preparation, but the door is open.
What Singapore Airlines actually buys
SIA's core procurement categories break into five areas:
Catering and inflight products. SIA operates its own inflight catering subsidiary, SATS Ltd, which handles the majority of ground catering at Changi. But SIA directly procures specialty food items, wines, spirits, premium tableware, and linen. Local food producers and specialty suppliers have entered this category.
Ground handling and airport services. SATS Ltd again handles much of this, but SIA directly contracts for ramp services at outstations, lounge management, and ground transport.
MRO (Maintenance, Repair, and Overhaul). SIA Engineering Company (SIAEC) is a separate listed entity, but SIA Group contracts extensively for component MRO, tooling, and technical consumables. This is a high-value category with long contract cycles.
IT and digital services. Passenger experience technology, crew management systems, cybersecurity, and data analytics services. SIA has invested heavily in digital transformation since 2018 and continues to run vendor pilots through its KrisLab innovation unit.
Marketing, creative, and consulting. Agency work, market research, event management, photography, video production, and translation services for 35+ markets. This category tends to have shorter contract terms and is more accessible to smaller suppliers.
Uniforms and corporate merchandise. SIA's distinctive sarong kebaya uniform is a brand asset. The uniform contract is long-term and tightly held, but ancillary corporate merchandise, workwear for ground staff, and branded gifts represent accessible entry points.
Singapore Airlines' supplier diversity and vendor development programme
SIA does not operate a standalone "supplier diversity programme" branded the way US carriers like United Airlines do. The accurate framing is this: SIA participates in Enterprise Singapore's Vendor Development Programme (VDP), which is Singapore's government-backed initiative to grow local SME participation in the supply chains of large anchor companies.
Under the VDP, SIA commits to developing local suppliers in identified categories. Enterprise Singapore co-invests in supplier capability building and facilitates introductions. This is the formal channel for Singapore-registered diverse businesses seeking to enter SIA's supply chain.
SIA's sustainability reporting also references supplier diversity commitments, specifically mentioning women-owned and SME suppliers as priority groups in its FY2023/24 Sustainability Report. The procurement team sits within SIA's Finance division, and supplier development is coordinated through the Group Procurement department.
SIA is also a member of Star Alliance, which operates a coordinated procurement function for some categories. Star Alliance's collective buying arrangements mean that SIA procurement decisions can open doors across other member carriers, including Air Canada, Lufthansa, and United Airlines.
Where to register: the iSupplier portal
SIA uses Oracle iSupplier Portal as its primary vendor registration platform. The URL is:
https://isupplier.singaporeair.com
Registration is open to new suppliers. You will need:
- Business registration certificate (Singapore ACRA BizFile or equivalent for APAC entities)
- GST registration number (if applicable)
- Company profile and capability statement
- Banking details for payment setup
- Relevant certifications (ISO, safety certifications for MRO, food safety for catering)
- References from existing enterprise clients
After submitting, procurement category managers review applications against active sourcing needs. There is no guaranteed response timeline, but suppliers typically hear back within 4 to 8 weeks if there is an active category match. If there is no current need, your profile stays on file for future tendering.
SIA also accepts supplier introductions through Enterprise Singapore's VDP team. Going through EnterpriseSG is slower upfront (VDP onboarding takes 2 to 3 months) but gives you a warm introduction rather than a cold portal submission.
Does WEConnect International certification help here?
Yes, concretely.
WEConnect International has a presence in Singapore and APAC. Its network includes corporate members who have committed to sourcing from women-owned businesses, and SIA has participated in WEConnect's Asia-Pacific events. WEConnect certification provides third-party verification that your business is at least 51% owned, managed, and controlled by women.
SIA's procurement team recognises WEConnect certification as a credential when evaluating suppliers for categories where diversity sourcing is a stated goal. This matters most in marketing, consulting, and catering-adjacent categories. It matters less in MRO, where technical certification (AS9100, CAAS approval) dominates the evaluation.
WEConnect International's Singapore certification process runs through its regional office. The application fee is approximately USD 350 for businesses with revenue under USD 1 million, and the process typically takes 6 to 10 weeks. Certification is valid for one year with annual renewal.
Getting WEConnect certified before you approach SIA is worth doing if you are in a service category. It signals that you meet an international standard, not just a local one, which matters to a carrier operating in 35+ countries.
Realistic timeline to first purchase order
This is not a fast cycle. Plan for 12 to 18 months from first contact to first paid order. Here is how that typically breaks down:
Months 1 to 3: Foundation. Register on iSupplier. Apply for WEConnect certification if applicable. If you are Singapore-registered, contact Enterprise Singapore to understand VDP eligibility. Build a capability statement that speaks to SIA's specific categories, not a generic company overview.
Months 3 to 6: Engagement. Attend Singapore Airshow (held biennially in February) and SIA-adjacent industry events. SIA procurement staff attend. WEConnect's Asia-Pacific Summit, typically held in Q3, is another venue. Direct contact with SIA procurement is difficult to engineer cold; events and EnterpriseSG introductions work better.
Months 6 to 12: Qualification. If SIA's procurement team is interested, expect a formal qualification process. For catering, this includes food safety audits. For IT, this includes security assessments. For MRO, this includes regulatory approval verification. This step is non-negotiable and cannot be shortened.
Months 12 to 18: First tender. SIA issues tenders to qualified suppliers. First orders for smaller categories (marketing, translation, merchandise) can move faster. IT pilot programmes through KrisLab can also move in this window. Larger categories (catering, MRO) run on multi-year contract cycles and you may be competing for a contract renewal rather than a new award.
Practical first steps
- Check ACRA registration. SIA requires Singapore-registered entities or APAC entities with a Singapore presence for most local procurement. If you are not yet Singapore-registered, this is the prerequisite.
- Register on iSupplier now. Even without an active tender, being in the system matters. SIA sometimes runs rapid sourcing events and pulls from the registered vendor database.
- Contact Enterprise Singapore's VDP team. Their website lists anchor companies participating in VDP. SIA is on the list. EnterpriseSG assigns a relationship manager who can facilitate a warm introduction to SIA procurement.
- Get WEConnect certified if you are women-owned. Do this in parallel with iSupplier registration. The timing works out.
- Build a category-specific capability statement. Not a brochure. A one-page document that names the SIA procurement category you are targeting, your relevant experience with similar enterprise clients, your certifications, and your geographic reach. SIA procurement managers see hundreds of generic company profiles.
- Target the right categories for your stage. Marketing, translation, photography, and corporate merchandise are the accessible entry points for smaller businesses. Catering and MRO require capital investment in compliance infrastructure before you can compete.
Singapore Airlines is not easy to get into, but it is not a closed system. The iSupplier portal is public, Enterprise Singapore's VDP is funded and active, and WEConnect certification gives diverse businesses a verifiable credential that SIA's procurement team knows. The work is in the preparation, not in finding the door.
