Find the Right Supplier.
Before the RFQ.
Reshoring pressure. Supplier fire drills. RFQs landing on the wrong shop. TandemOne replaces the guesswork with verified capability, capacity, and certifications before a single quote is requested.
Build Your RFI
Tell us what you're sourcing in three quick steps, then request a demo to see real verified matches.
Browse the Full Operations & Capabilities ListSee every process across all seven categories, no steps required
Buyers on TandemOne Right Now
Verified buyers across critical manufacturing sectors are actively sourcing on the platform today.
- Tier 1 & 2 buyers sourcing CNC machining + metal stamping
- OEMs sourcing sheet metal fabrication + robotic welding
- Buyers sourcing die casting + surface finishing
- Tier 1 buyers sourcing injection molding + assembly
- OEMs sourcing metal stamping + IATF 16949-certified processes
- Tier 1 & 2 buyers sourcing CNC machining + metal stamping
- OEMs sourcing sheet metal fabrication + robotic welding
- Buyers sourcing die casting + surface finishing
- Tier 1 buyers sourcing injection molding + assembly
- OEMs sourcing metal stamping + IATF 16949-certified processes
- OEMs sourcing precision machining + surface finishing
- Buyers sourcing injection molding + cleanroom assembly
- OEMs sourcing Swiss machining + passivation
- Buyers sourcing metal injection molding + laser marking
- OEMs sourcing precision machining + ISO 13485-aligned processes
- OEMs sourcing precision machining + surface finishing
- Buyers sourcing injection molding + cleanroom assembly
- OEMs sourcing Swiss machining + passivation
- Buyers sourcing metal injection molding + laser marking
- OEMs sourcing precision machining + ISO 13485-aligned processes
- Buyers sourcing metal finishing + fabrication
- OEMs sourcing sheet metal fab + powder coating
- Buyers sourcing CNC machining + welding
- Tier 1 buyers sourcing casting + machining
- OEMs sourcing fabrication + assembly
- Buyers sourcing metal finishing + fabrication
- OEMs sourcing sheet metal fab + powder coating
- Buyers sourcing CNC machining + welding
- Tier 1 buyers sourcing casting + machining
- OEMs sourcing fabrication + assembly
- Buyers sourcing precision machining + NADCAP-certified processes
- OEMs sourcing 5-axis machining + AS9100D-certified processes
- Buyers sourcing sheet metal fab + ITAR-registered suppliers
- OEMs sourcing precision machining + non-destructive testing
- Buyers sourcing forging + heat treatment
- Buyers sourcing precision machining + NADCAP-certified processes
- OEMs sourcing 5-axis machining + AS9100D-certified processes
- Buyers sourcing sheet metal fab + ITAR-registered suppliers
- OEMs sourcing precision machining + non-destructive testing
- Buyers sourcing forging + heat treatment
Additional industries already sourcing and supplying on the platform.
Where TandemOne Operates
Strong supplier and buyer density across regions worldwide, anchored in the United States of America.
North America
Our deepest concentration of verified suppliers and active buyers, anchored in the U.S. and expanding across Canada and Mexico.
Europe
Buyer demand is climbing across manufacturing hubs in Western and Central Europe as teams look to diversify their supplier base.
China
An established supplier base for buyers who prefer to keep sourcing directly from China.
India
A fast-growing supplier base in precision machining, metal injection molding, and fabrication.
Southeast Asia
An emerging non-China alternative for fabrication, energy, and industrial equipment sourcing.
South America
Early but growing supplier and buyer activity as manufacturers look closer to home for backup capacity.
Your Primary Supplier Goes Down. Now What?
More fire drills. More reshoring pressure. Buyers can no longer afford to have one supplier per category, but qualifying a real backup the old way takes weeks you don't have.
- ✓Pre-vetted alternates by capability, certification, and location, ready before you need them
- ✓Domestic-first options for teams under reshoring pressure
- ✓Qualify a second source in days, not weeks
From Buyer Need to Verified Supplier
A real example of how TandemOne connects sourcing demand to a qualified supplier.
Industrial Equipment
Sourcing sheet metal fabrication and stamped brackets for a new product line, domestic supply preferred.
Sheet Metal Fab & Stamping
30–1,000 ton stamping, waterjet, robotic weld cells, and CMM inspection under one roof.
Sent an RFI, received a qualified quote, and moved to production planning, without another wasted RFQ cycle.
Real Feedback From the Network
Klesk Metal Stamping is focused on supporting their customers and finding the right solutions, even when a project includes components outside of their in-house capabilities.
Using TandemOne, Klesk was able to quickly identify a qualified supplier, send an RFQ, and receive a competitive quote in a short timeframe. The platform helped them expand their supplier network, collaborate with trusted manufacturing partners, and provide a more complete response to their customer.
For Klesk, TandemOne created a simple way to increase sourcing flexibility and better support customer opportunities.
TandemOne directly addresses the need by providing a dedicated platform to showcase our products to a targeted, global network of industry buyers.
I feel very confident about working with suppliers on TandemOne, based on their pre-vetting process. It removes the uncertainty that typically slows things down.
TandemOne's solution enables discovery as a vetted supplier to clients across industries globally. A trusted connection is critical to explore cross-border collaboration.
TandemOne Intelligence
The market knowledge to quote, negotiate, and source with confidence.
Hot-Rolled Coil Steel
USD per short ton · CME
Sign up to see full price history for every metal
Get StartedSimple, Transparent Pricing
Buyers source for free. Suppliers don't pay until they receive their first RFI.
Browse the directory, send RFIs, message suppliers, and track metal & material cost indexes.
- Verified profile & directory listing
- Receive RFIs (title & description visible)
- Invoice tracking
- Market intelligence: metal, labor & energy indexes
- Everything in Free
- Respond to RFIs directly through the platform
- Direct messaging with buyers
- Standard marketing analytics
- 3 team seats
- Everything in Pro
- Advanced marketing analytics
- Priority placement in search
- Unlimited team seats
Frequently Asked Questions
What buyers and suppliers ask us most before getting started.
What does "verified supplier" actually mean, what's the vetting process?
A verified supplier has gone through our QMS (quality management system) verified review process, covering capability, certification, and capacity, before their profile goes live and becomes searchable. Buyers are looking at confirmed processes and credentials, not just self-reported claims from a website or PDF.
How is TandemOne different from other marketplace platforms?
Those platforms operate at the RFQ and instant-quoting stage, acting as a broker between you and the other side. TandemOne lives upstream of that. We meet and verify each supplier ourselves before they're listed, then step aside. We're not a middleman, so you deal directly with the supplier and stay in control of the relationship.
What is an RFI, and how is it different from an RFQ?
An RFI (Request for Information) is a structured, criteria-based way to reach out before either side is ready to negotiate, it covers capability, capacity, and fit. An RFQ (Request for Quotation) comes after that, once you have confirmed a real match and are ready to discuss pricing and terms. TandemOne replaces the cold-email version of an RFI with a structured one.
Can suppliers see buyers?
Not upfront. Buyers are typically fielding dozens of requests at once, so their identity stays private until an RFI is sent. Once a buyer sends you an RFI, Pro and Growth suppliers can see exactly who that buyer is, along with the title, description, and requirements, and respond directly through the platform.
What information do I need to submit to get verified?
A standardized profile covering your core capabilities and processes, certifications, facility and capacity details, and location. Our team reviews it before your profile goes live.
How long does verification take?
Verification is a manual review by our team, not an automated approval. Most suppliers with a complete profile are live within a few business days.
Do I get any visibility into who's viewing my profile or sending RFIs?
Yes. Your RFI activity dashboard shows every RFI and its status, and marketing and engagement analytics show interest in your profile, so you can see real demand instead of guessing at it.
Do you verify certifications (ISO, IATF, AS9100, etc.)?
Yes. Certifications like ISO 9001, IATF 16949, AS9100D, and NADCAP are confirmed as part of verification and shown directly on your profile, so buyers can filter and trust what they see without asking you to prove it over email.
Who owns the relationship once a buyer and supplier connect, do you take a cut or stay involved?
You do. TandemOne does not take a cut of any deal and does not stay involved in the commercial relationship. Once an RFI turns into a real conversation, the quote, the contract, and the ongoing business are between you and the other side, with invoice tracking available on the platform if you want it.
Ready to Source With Confidence?
Free for buyers. Verified suppliers, ready before the RFQ.