We closed our Seed Round. Great North Ventures led the $3.5M raise, with participation from two undisclosed angels who have operated construction businesses in Mexico for a combined 35 years. We are not calling this a milestone — it is a starting line.
This post explains what the capital is earmarked for, why Great North Ventures chose us, and what contractors using Mango should expect to see change over the next 12 months.
What Great North Ventures Actually Bets On
Great North Ventures has a specific thesis: they look for technology companies entering industries where the dominant workflow is still analog — fax machines, phone calls, handshake agreements, paper invoices. Construction procurement in Latin America is one of the most extreme examples of that pattern still operating at scale.
The average Mexican contractor making MXN 5,000,000 in annual materials purchases runs that spend across three to eight suppliers, none of whom share data with each other. Payment terms are negotiated in person. Credit decisions are made by a supplier's accountant based on how long they have known you. Delivery windows are a suggestion. Great North looks at that and sees the same gap they recognized in agricultural supply chains in 2019 and logistics software in 2021 before those markets got their first wave of verticalized software.
They reached out to us after watching three months of transaction data from our beta cohort. By that point, Mango was processing 140 orders per month with an average order value of MXN 87,000. That was enough for them to make the decision without additional due diligence rounds.
The Three Things This Round Funds
We made specific commitments about how this capital gets deployed. Here they are, in order of priority.
First: the credit infrastructure layer. Right now, Mango's trade credit product relies on a single capital partner for the credit lines we extend to contractors. That works at our current volume, but it creates a concentration risk we are not comfortable with at scale. We are using a portion of the Seed Round to negotiate a second credit facility and to build the internal underwriting tooling that lets us process decisions without routing every application through a third party. The target is 4-hour credit decisions on orders up to MXN 500,000 without manual review.
Second: logistics expansion to Monterrey and Guadalajara. Our 48-hour delivery commitment currently covers the Mexico City metropolitan area, roughly 21 million people. Monterrey and Guadalajara together add another 10 million, and both cities have active construction markets that run at a different pace than CDMX. We are pre-negotiating warehouse agreements in both cities rather than waiting until we have active orders there. The goal is to be live in Monterrey by Q3 2025 and Guadalajara by Q1 2026.
Third: the supplier API layer. Today, our supplier integrations are a mix of manual CSV syncs, individual EDI connections, and two suppliers who call us to update inventory. That is not a scalable data architecture. We are building a supplier-facing API that lets any verified supplier push real-time inventory and pricing into the Mango catalogue without our operations team in the loop. Target: 80% of our SKU catalogue updating in real time by end of 2025.
What Contractors Will See First
The internal infrastructure changes do not translate directly into visible product improvements, so here is what will actually change in the Mango app between now and the end of 2025.
Credit limit increases. Contractors who have completed three or more orders with on-time payment will see their credit ceilings raised automatically in June. The current top credit limit is MXN 1,000,000. After the infrastructure work is complete, that ceiling moves to MXN 5,000,000 for qualified accounts.
Real-time inventory on high-turnover SKUs. Cement, rebar, and drywall are the three categories where price and availability shift fastest. These are also the three categories where a stale catalogue causes the most damage. The supplier API work starts there. By August, those categories will show live stock levels pulled from supplier warehouse systems.
Expanded catalogue depth in electrical and plumbing. Our current electrical SKU count is 1,200. We have signed two new suppliers whose catalogues add 3,400 additional electrical and plumbing SKUs. Those go live in April.
The Numbers We Track Internally
We shared some of these with Great North during diligence, and they asked us to make them public as a commitment to transparency.
Orders per month at close of beta: 140. Average order value: MXN 87,000. Repeat order rate among contractors with 60-day tenure: 73%. Average credit decision time, Q1 2025: 5.2 hours. On-time delivery rate, CDMX metro area: 91%. Supplier removal rate, Q4 2024: 8 suppliers removed out of 104 active. Credit default rate to date: 0.4% of total disbursed value.
That last number is the one we watch most carefully. At 0.4%, we are performing better than the industry average for construction trade credit in Mexico, which hovers around 2-3% for new lenders. The reason is the data signals we use — permit records, project timelines, contractor payment history across suppliers — rather than relying on a single bureau score. We will publish a separate post on the underwriting model.
What We Got Wrong in the Beta
We ran the beta for six months before this round. Some things did not work as planned.
The mobile app was too slow for foremen working on-site. The initial build required a consistent 4G connection to load the catalogue. On construction sites, that connection is not guaranteed. We rebuilt the catalogue view to cache locally and sync when connectivity returns. That change went out in February. Load time on 2G dropped from 8 seconds to under 2 seconds.
The delivery window communication was too coarse. We told contractors "within 48 hours" but did not give specific arrival windows until the morning of delivery. Three contractors in the beta requested a refund not because of a problem with the order but because the vague timing made site logistics impossible. We now send a 3-hour delivery window at 6 AM on delivery day and an SMS 30 minutes before the truck arrives.
Onboarding took too long. The original KYC process required contractors to upload 7 documents and wait 3 business days for approval. We cut it to 4 documents with a 24-hour review for standard applications. High-value accounts above MXN 2,000,000 in projected monthly spend still go through the full review.
A Note on What This Round Is Not
This is not a Series A. We are not building a unicorn narrative or chasing TAM slides. We are solving a specific, observable problem: contractors in Mexico cannot access trade credit at the scale they need, and the procurement process is fractured across too many non-integrated vendors. We raised enough to prove the model works at a larger scale. If it does, we raise more. If it does not, we adjust.
The construction market in Mexico is worth $48 billion annually. We do not need a large fraction of that to build a durable business. We need to be the most reliable procurement option for 10,000 contractors in three cities. That is the target for this raise.
How to Work With Us
If you are a contractor in Mexico City currently managing procurement across multiple suppliers, you can request access at mangxo.org. Onboarding takes one business day. You do not need a credit history with Mango to apply — we evaluate your project pipeline, not your bank relationship.
If you are a supplier who wants to list inventory on the Mango platform, contact us at contact@mangxo.org. We are currently accepting applications from suppliers in cement, structural steel, lumber, finishes, and MEP (mechanical, electrical, plumbing) categories with RFC compliance and delivery capability in the CDMX metropolitan area.
If you are a potential investor reading this: we are not raising another round until the Seed milestones are hit. Check back in Q4 2025.