People across 6 countries
A deliberately compact team of engineers, network operators, compliance specialists, and solutions architects. No BPOs in the escalation path, no offshore script-readers on the first call.
Company / About
A CPaaS messaging company built since 2012.
BulkSMS Services is the mid-market platform engineering teams keep on speed-dial for transactional alerts, OTP verification, and promotional SMS — at carrier-grade SLAs without hyperscaler pricing.
14.2B messages delivered
190 countries
99.95% uptime SLA
11 min median integration
Singapore HQ · Frankfurt · Mumbai · Atlanta · 187 people · 24/7 in-house NOC
- 2012Founded · Singapore
- 14.2BMessages delivered
- 190Direct carrier routes
- 18,400+Paying customers
Founding Story
Built in 2012 for teams that needed reliable messaging without hyperscaler pricing.
BulkSMS Services started in a single office in Raffles Quay with a simple thesis: mid-market companies — fintechs, logistics operators, e-commerce platforms in the 50–2,000 employee range — were being asked to ship transactional alerts, OTP codes, and promotional campaigns at carrier-grade reliability, but every serious vendor on the market priced and packaged for the top 0.1% of the cloud.
We built BulkSMS Services to sit squarely in the gap: a CPaaS-grade platform with direct Tier-1 carrier routes, REST + SMPP APIs that integrate in minutes, and a pricing model that an operations lead can actually defend in a budget meeting. Twelve years later, the same thesis still drives every roadmap decision.
- Direct Tier-1 carrier relationships in 190 countries — no reseller hops.
- Median integration of 11 minutes across REST, SMPP, and 12 CRM connectors.
- Transparent route pricing — currently $0.0042/SMS on the US lane.
People & Operations
Real engineers, real coverage, audited controls.
Most mid-market CPaaS competitors outsource tier-1 support and run a skeleton night shift. BulkSMS Services runs a 42-person, 24/7 in-house Network Operations Center — the same engineers who wrote the routing layer are the ones picking up your ticket at 03:00 UTC.
Engineers in the 24/7 NOC
The NOC monitors every route, every webhook, and every DLR. Median first-response on a P1 incident is under four minutes — measured, not marketed.
ISO 27001 certified
Continuously certified since 2017 across infrastructure, code deployment, and physical security at every delivery hub. Annual surveillance audits by a Big-Four-aligned certification body.
SOC 2 Type II, audited annually
SOC 2 Type II coverage renewed every year since 2020 across Security, Availability, and Confidentiality trust principles. Reports available under NDA from your account team.
Customer Roster
Trusted by 18,400+ teams — from fintech to logistics.
A representative slice of the brands running production traffic on BulkSMS Services. The full customer list skews heavily into mid-market — 50 to 2,000 employees, multi-region, and shipping at real volume.
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Klarna
Fintech · BNPL
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Decathlon
Retail · Sporting goods
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Careem
Mobility · Super-app
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Bukalapak
E-commerce · Marketplace
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Nimbus
Digital banking · EU
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Routelink
Logistics · Last-mile
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Pulsecare
Healthtech · APAC
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Shipyard
DevOps SaaS
Operating Metrics
The numbers behind 12 years of uptime.
Verified metrics from the trailing 8 quarters — no aspirational language, just the figures our NOC reports to the leadership team every Monday morning.
Messages delivered since 2012
Transactional alerts, OTPs, and promotional traffic across 190 direct carrier routes — with a verified delivery receipt on every single send.
Cumulative, 2012 — Q1 2026Platform uptime SLA
Contractual SLA on the control plane and API. Recent trailing-30-day actuals sit at 99.97% — and yes, we issue credits when we miss.
Backed by service creditsPeak messages per second
2024 Black Friday window — sustained across a 4-hour traffic curve with zero dropped batches and zero operator intervention required.
2024 Black Friday peakQuarterly client retention
Trailing 8 quarters. The same number that gets reviewed in every board meeting — and the reason we under-promise in sales calls.
Trailing 8 quartersAvg. enterprise onboarding
Down from 31 days in 2020, measured contract-to-first-production-message across the last 12 enterprise launches. Includes compliance review.
From 31 days in 2020DLR webhook delivery
Median time from carrier handoff to a signed delivery receipt landing in your webhook. Crucial for OTP flows and conversion attribution.
Median, signed receiptsG2 customer rating
Across 2,140 verified reviews on the 2024 G2 Fall Grid — and the reason we were named a Leader in Mid-Market CPaaS.
G2 Fall Grid 2024Marketers using our ROI calc
The free SMS ROI calculator we published in 2021 — now the most-cited CPaaS planning tool in the mid-market segment.
Free · since 2021
Company Tenet
Reliability is a feature you build, not a slide you sell.
“Twelve years in, the part of this job that still keeps me up at night is not market share or pricing. It is the 03:00 UTC P1 page when a customer's OTP flow goes dark. Everything we ship — the routing layer, the NOC staffing model, the on-call rotations, the way we write runbooks — is in service of that one moment. If we get it right, nobody notices. That is the whole point.”