Seam

What Seam does

Seam (Seam Labs, Inc.) is a San Francisco-based API infrastructure company founded in 2020 that provides a universal interface for connecting, controlling, and managing third-party IoT devices. The platform serves software developers and businesses primarily in the property management, hospitality, multifamily, and vacation rental sectors, offering standardized APIs for smart locks, thermostats, access control systems, and noise sensors from 30+ brands including Yale, Schlage, August, Lockly, Nuki, Google Nest, ecobee, ASSA ABLOY, Avigilon, Brivo, and Salto. Named customers include property management SaaS platforms Mews, Guesty, Cloudbeds, Hospitable, Hostaway, Lodgify, Operto, Breezeway, and RMS Cloud, as well as multifamily operator AvalonBay, smart home platforms Kasa and Enso, and fitness management providers GymDesk and Wodify.

The core technology is a unified API abstraction layer supporting 1,000+ device models through standardized interfaces, supplemented by client SDKs in JavaScript, Python, Ruby, PHP, C#, Java, and Go, plus iOS and Android mobile SDKs for credential management (BLE, NFC, Apple Wallet). The platform includes pre-built UI Components, real-time webhooks and events, a sandbox workspace for testing with virtual devices, and a proprietary "Seam Bridge" device for hardware lacking native APIs. Device coverage spans four primary verticals: Smart Locks, Access Control Systems, Thermostats, and Noise Sensors.

Seam operates a freemium go-to-market motion with self-serve onboarding via console.seam.co and a no-credit-card free trial for small teams, complemented by custom enterprise pricing that scales with device fleet size. Enterprise tier includes enhanced security, beta features, dedicated support, and volume discounts. The company claims 100K+ devices connected across 55+ countries and 25M+ monthly operations, and has disclosed only a single $125,000 seed round from Y Combinator (lead), Pioneer Fund, Root Ventures, Soma Capital, and Tuesday Capital in August 2020. The company is led by co-founder and CEO Sy Bohy and co-founder Dawn Ho.

Name

Seam

Legal name

Seam Labs, Inc.

Website

https://seam.co

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

Seam is a San Francisco-based API platform, founded in 2020, that lets developers connect, control, and manage smart locks, thermostats, access control systems, and sensors from 30+ brands through a single unified interface, primarily serving property management and hospitality software companies.

Ownership category

akta.pro rank

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. API Platform Subscription: Seam generates revenue through a subscription-based API platform model. The free trial is available for small teams to build and test, while enterprise pricing scales with device fleet size. Pricing includes enhanced security, beta features access, dedicated support channel, volume discounts, and no usage limits for enterprise customers.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

Seam provides a universal IoT API platform that enables developers to connect, control, and automate third-party smart devices — including smart locks, thermostats, access control systems, and noise sensors — through a single standardized REST API with webhooks. The platform abstracts 1,000+ device models from 30+ brands and supports pre-built UI components, mobile credential issuance (BLE/NFC/Apple Wallet), and sandbox testing environments, targeting software companies building applications for property management, hospitality, multifamily, fitness, coworking, and self-storage operators.

Product overview

Seam is an API-first IoT infrastructure platform that provides a unified API for connecting and controlling smart devices across multiple manufacturers and protocols. The core offering is the Seam API Platform, which integrates with 1,000+ device models from 30+ brands including smart locks (Yale, August, Schlage, Lockly, Nuki, Salto, etc.), thermostats (Nest, ecobee, Honeywell), access control systems (ASSA ABLOY, Avigilon, Brivo, Latch), and noise sensors (Minut, NoiseAware). The platform includes add-on modules like Seam Components (pre-built UI components), the Mobile Access Solution (BLE/NFC credential management), and developer tools including an API Console, CLI, and sandbox workspaces. The Smart Locks API, Access Control Systems API, Thermostats API, and Noise Sensors API are specialized API products within the platform for different device categories.

Differentiator

Problem solved

Functional benefit

Products and services

• Seam API Platform Universal API platform that enables developers and software companies to connect, control, and manage third-party IoT devices including smart locks, thermostats, access control systems, and noise sensors through a unified REST API with webhooks. Supports 1,000+ device models across 30+ brands and is designed for software companies serving property management, hospitality, multifamily, fitness, coworking, and self-storage markets.
• Seam Console Self-serve web-based console for managing Seam API integrations, generating API keys, exploring supported devices, and administering workspaces. Available globally with free trial access for developers and small teams.

Quantifiable outcome

• 25M+ operations monthly across 1K+ supported device models
• +2 more outcomes

Named customers20 records

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration30 records

Feature8 records

Partnerships

Two partnerships are on record, tiered core.

• LocklyPROcoreTechnology or Integration · 13 June 2025LocklyPRO, the commercial division of smart lock manufacturer Lockly, partnered with Seam to integrate Seam's API with the LocklyOS access management platform. The integration enables users to control LocklyPRO smart locks alongside third-party smart devices including thermostats, cameras, and access systems from multiple manufacturers through a unified platform.
• AdvanceCM (by Tokeet)coreTechnology or Integration · 13 February 2025Seam and AdvanceCM partnered to integrate smart lock technology into property management systems, allowing property managers to automate access control and improve security and efficiency. Seam's smart locks, compatible with various brands, enable remote management, automate access, and enhance guest experience while reducing operational overhead.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Latch: Latch delivers smart access and IoT management software for multifamily buildings, including smart locks, access control, and building automation. It overlaps directly with Seam's access-control and smart-lock capabilities for residential and commercial properties.
• RemoteLock: RemoteLock provides cloud-based access control software for managing smart locks and other devices across vacation rentals, commercial, and multifamily properties. It targets the same property-management use cases as Seam, including time-bound access codes and remote management.
• SmartRent: SmartRent provides a smart home and IoT operating platform purpose-built for multifamily and rental property operators. Like Seam, it focuses on connecting and controlling smart devices (locks, thermostats, sensors) across property portfolios and integrates with major property management systems.
• Particle: Particle is an IoT platform-as-a-service offering hardware modules, an IoT cloud, and APIs for developers to connect and manage fleets of connected devices. Like Seam, it is developer-first and abstracts device complexity behind a unified API.
• Ayla Networks: Ayla Networks is an IoT platform-as-a-service that provides a unified cloud and API layer for connecting, managing, and analyzing connected devices from multiple manufacturers. Like Seam, it abstracts heterogeneous device ecosystems behind a single API for enterprise and consumer brands.
• Brivo: Brivo is a cloud-based access control and physical security platform that manages credentials, entries, and users across commercial properties. It overlaps with Seam's Access Control Systems API and competes for similar enterprise customers.

Emerging players

• Losant: Losant is an enterprise IoT platform offering device management, data ingestion, and workflow automation through APIs and dashboards. It is comparable to Seam as a developer-facing IoT abstraction layer, though focused more on industrial than property use cases.
• igloohome: igloohome is a smart lock and access management provider with strong adoption in short-term rental and delivery use cases. It is both a supported device brand on Seam's platform and a potential competitor in access automation for rentals.

Broad incumbents

• Tuya Smart: Tuya is a global IoT cloud platform that powers hundreds of thousands of smart device SKUs across consumer and commercial categories. While broader and more vertically integrated than Seam (owning an OEM-side ecosystem), it competes for IoT API and device-aggregation workloads.
• Honeywell Building Technologies: Honeywell offers a broad portfolio of building automation, HVAC controls, access control, and IoT management solutions for commercial real estate. It overlaps with Seam's thermostat, sensor, and access-control capabilities, but as part of a much wider BMS portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/seamapi
• Xx.com/helloseam
• Facebookfacebook.com/getseam
• LinkedInlinkedin.com/company/getseam

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds1 record

Investors5 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Seam