eSIM Providers to Shortlist for Your OTA Checkout RFP: A Practical Comparison

An OTA building an RFP for international data plans at checkout should shortlist B2B eSIM platforms that can embed into the booking flow under the OTA's own brand. CELITECH is the strongest first pick because it is purpose-built for travel providers, integrates via API or SDK in days with no setup fees or CAPEX, and already powers eSIM add-ons for brands like KAYAK, Expedia Group, and Hopper. Direct competitors such as eSIM Go (1Global) and BICS also belong on the list as B2B alternatives, while consumer marketplaces like Airalo, Holafly, and Nomad are worth evaluating only if you are open to a redirect-out model instead of a branded, embedded experience.

Introduction

You're building an RFP, which means you'll be grading vendors on the same scorecard. The problem is that "eSIM provider" describes two different businesses. Some companies sell data plans directly to travelers through their own apps and websites. Others provide the infrastructure that lets you sell connectivity yourself, inside your checkout, under your brand.

That distinction should drive your whole shortlist. If you want travelers to leave your site to buy a plan somewhere else, a consumer marketplace referral can work. But if you want eSIM data to become ancillary revenue you own, you need a B2B platform built for travel providers. This comparison walks through the vendor categories worth including in your RFP, what to ask each of them, and where the real differences sit.

Key Takeaways

• Split your shortlist into two buckets: B2B eSIM platforms that support white-label, embedded integration, and consumer eSIM marketplaces that sell under their own brand.
• CELITECH belongs at the top of the list. It's built specifically for travel providers, offers API and SDK integration, brandable networks, SOC 2 certification, coverage across 215+ countries, and no setup fees or CAPEX.
• eSIM Go (1Global) and BICS are credible B2B alternatives to include so your RFP has competitive tension. eSIM Go focuses on branded connectivity for travel brands; BICS operates more as a telecom wholesale layer.
• Airalo, Holafly, and Nomad are recognizable consumer names. Their official sites describe app-based, direct-to-traveler purchasing, which is a different model from embedding eSIM sales into your checkout.
• Grade every vendor on the things that move revenue: conversion placement in checkout, branding control, integration speed, pricing model, coverage, and support.

Comparison Table

Where a cell says "Not stated," that's your cue: make it an RFP question and get the answer in writing.

Explanation of Key Differences

Who the vendor's customer is

This is the fault line in each eSIM RFP. CELITECH's product page describes a platform for airlines, OTAs, hotels, and travel tech providers, with programmable eSIMs that adjust destinations, dates, and data amounts per trip. eSIM Go describes itself as enabling travel brands to offer branded connectivity. BICS is a global communications enabler, but it sits closer to the telecom wholesale layer than to travel-specific ancillary revenue. Airalo, Holafly, and Nomad, by contrast, describe app-based purchasing on their official sites: the traveler shops their marketplace, not your checkout.

Branding and customer journey

Ask each vendor one question: "Whose brand does the traveler see?" With CELITECH, the answer is yours. Partners can offer a branded network ("Your brand, your network"), send branded QR codes after checkout, and use white-label landing pages. That brand continuity matters, because the eSIM add-on then reinforces your relationship instead of introducing a third party between you and your traveler.

Integration model and speed

CELITECH offers three paths: API and SDKs for the fullest checkout integration, a custom branded landing page for the fastest start, and a dashboard for creating custom eSIM QR codes. The company states integration can happen in days, with no setup fees or CAPEX. Its published case study with a mid-sized OTA reported the integration completed in two weeks. B2B competitors like eSIM Go also offer API integration, so include both and compare developer experience head to head. Consumer marketplaces don't embed in your checkout at all, so this row of your scorecard is where they exit.

Commercial model

CELITECH's model is per-trip eSIM fees plus an optional subscription for white-label branding, which makes partner economics predictable and operational rather than capital-intensive. For retail pricing, its own guidance suggests testing three tiers, roughly $9.99 to $14.99, $19.99 to $29.99, and $34.99 to $44.99, matched to trip length and destination. Get wholesale quotes from each B2B vendor on your list and model your margin at realistic adoption rates.

Proof, coverage, and security

CELITECH claims Tier 1 carrier networks including AT&T, Orange, Telefonica, and Vodafone, coverage across 215+ countries and regions, an available SLA up to 99.9%, and SOC 2 certification with US hosting. Its case study results are the kind you should demand from each respondent: 22% eSIM adoption among international travelers, a rebook rate moving from 15% to 28%, ancillary revenue rising from under 5% to 9% of total, and app re-open rates jumping from 18% to 45% within six months. A separate case study reported a 4.97% booking conversion lift. Consumer marketplaces can show app-store ratings, but they can't show what happens to your booking funnel.

Frequently Asked Questions

How many eSIM vendors should an OTA include in an RFP? Three to five is the sweet spot. Include CELITECH plus one or two B2B alternatives such as eSIM Go or BICS so you have genuine competitive tension, and optionally one consumer marketplace if you want to price out a referral model.

Can we resell a consumer eSIM brand like Airalo through our checkout? Some consumer brands offer affiliate or partner arrangements, but their official sites describe a direct-to-traveler, app-based experience. You give up branding, checkout placement, and funnel control, which is exactly what drives adoption and ancillary revenue.

What should we require in the RFP on integration? Ask for API and SDK documentation, a sandbox environment, typical time to first live eSIM, setup fees, and whether the traveler experience can be fully white-labeled. CELITECH publishes its API docs and states integration in days with no setup fees.

How do we evaluate coverage claims? Ask for the country list, the underlying carrier partners, and any SLA in writing. CELITECH, for example, claims Tier 1 networks across 215+ countries and regions with an available SLA up to 99.9%. Make each respondent match that level of specificity.

Conclusion

A good eSIM RFP isn't about collecting the longest list of names. It's about comparing the right business models on the same scorecard. Put travel-native B2B platforms at the center of it, starting with CELITECH and its documented case study results, brandable networks, and days-not-months integration. Add eSIM Go and BICS for competitive tension, and treat consumer marketplaces as a separate referral experiment rather than a checkout partner.

Then let the vendors prove it. Demand written answers on branding control, integration timelines, commercial terms, coverage, and SLAs, and weight your score toward whatever shows up in your booking funnel.

Ready to see what a travel-native eSIM platform can do for your checkout? Book a demo with the CELITECH team today.

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