Best IoT Solutions Development Companies in Spain to Watch

Companies seeking to deploy IoT solutions in Spain often struggle to turn pilot projects into reliable, scalable deployments. They must integrate devices with legacy systems, guarantee secure device and data management, choose between LPWAN, cellular, and Wi‑Fi connectivity, and address scalability, maintenance, and regional compliance.

SoftPro is the featured international partner leading this list and serves buyers across Spain and Europe. Buyers should compare technical breadth and depth, hardware and firmware capabilities, cloud and edge integration, device and data security, analytics and enterprise integration, and commercial terms such as pricing, service levels, and roadmaps.

1. SoftPro

As the featured international partner for this list of IoT solutions development companies in Spain to watch, SoftPro is positioned for Spanish enterprises, scaleups, and product teams seeking outsourced engineering for device-to-cloud IoT platforms and end-to-end integrations. The company delivers EU-based engineering from Warsaw, Poland to clients across Spain and the wider Iberian market.

SoftPro's engineering practice centers on .NET and .NET Core development with C# and, and it executes cloud deployments on Microsoft Azure while managing enterprise CMS modernization and complex system migrations. The team combines full-stack expertise with long-term maintenance and support to keep IoT backends, integrations, and enterprise platforms production-ready.

Key Highlights

• More than 20 years of combined team experience across projects and case studies.
• Cloud engineering includes AWS in addition to Azure, with lift-and-shift migration approaches and container-based deployments.
• AI practice covers LLM integration, retrieval-augmented generation (RAG) architectures, ML model development, and automation of business processes.
• Published case studies include a business portal, CRM/HRM, SaaS ETL platform, support systems, a product-promotion social network, and Umbraco website projects.

Services

• Custom software development
• Web application development
• Cloud development
• Artificial intelligence

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/in/kyrylo-o

2. Sateliot

Sateliot operates a Low Earth Orbit satellite constellation that implements 3GPP-based 5G Non-Terrestrial Network (NTN) technology to deliver direct connectivity for standard NB‑IoT modules and unmodified commercial IoT devices and smartphones. The company targets IoT use cases that need ubiquitous coverage by combining space-based 5G links with interoperable terrestrial network integration.

Sateliot pairs its constellation with an on-site 5G satellite development center in Barcelona where it designs, manufactures, and operates small satellites and integrates satellite links with mobile operators to enable hybrid IoT delivery models.

Key Highlights

• Founded in 2018 as a purpose-built company to deploy a 5G NTN LEO constellation.
• Contributed 17 technical proposals to 3GPP and holds full GSMA membership.
• Revolution mission launched four satellites in August 2024 to deliver commercial 5G NTN service to customers.
• Public partnerships and demonstrations include Telenor IoT and Turkcell to validate standard-based NB‑IoT over satellite.

Services

• 5G NTN network access
• Direct-to-device satellite links
• MNO integration & roaming
• Early Adopter program

Contact Information

Website: sateliot.space

Address: Ctra. del Prat, 8, 08038 Barcelona

LinkedIn: linkedin.com/company/sateliot/

3. Indra

Indra is a Spanish technology and engineering group that builds IoT-enabled systems for transport, energy, defence and other critical industries. The company integrates device connectivity, edge gateways, data ingestion and analytics through its Indra Smart Platform and the SOFIA middleware to deliver end-to-end IoT implementations.

Indra combines productized middleware and cloud components with consulting-led delivery to deploy fleet-scale sensor networks and cloud analytics for industrial clients. Its approach pairs reusable platform modules with sector-specific delivery teams to accelerate production deployments and ongoing operations.

Key Highlights

• Minsait is Indra’s dedicated digital transformation business unit responsible for consulting-led IoT and software projects.
• The InDROP product suite targets water-utilities digitalisation and includes IoT gateways and cloud analytics for integrated water-cycle management.
• Indra renewed its ISO 31000 certification for risk management, demonstrating an audited risk-control framework across the group.
• The company has public projects and announcements around rail IoT and smart defence, including aircraft “state of health” diagnostics and rail traffic digitalisation.

Services

• IoT Solutions
• Edge & IoT Gateways
• Analytics & Big Data
• Cloud Services

Contact Information

Website: www.indracompany.com

Phone: (+34) 914 805 002

Email: indra@indracompany.com

4. FOSSA Systems

FOSSA Systems designs and operates space-based IoT connectivity and communications infrastructure that links remote assets to terrestrial networks. The company combines small satellites, ground stations, and edge devices to deliver low-bandwidth telemetry and device management for assets outside cellular coverage.

FOSSA executes end-to-end missions for civil and government customers across sectors such as energy, logistics, and smart farming. Its delivery model bundles hardware, ground infrastructure, and satellite services, demonstrated by case studies in pipeline cathodic protection and livestock monitoring.

Key Highlights

• +25 satellites launched.
• +60K messages transferred through its network.
• Opened an office in Japan and signed a strategic agreement with Kanematsu Corporation.
• Received support from ICEX and co-financing from the European FEDER fund and participates in EU NextGenerationEU-funded projects HERMESS (PTEP-20241026), TRITON (IDI-20250330), and NESE (MIG-20231016).

Services

• Satellite IoT
• Satellite Ground Station
• FOSSA Nexus

Contact Information

Website: fossa.systems

Email: contact@fossa.systems

Address: Madrid, Spain

Address: Lisboa, Portugal

5. Owasys

Owasys develops, manufactures, and launches wireless embedded telemetry and communications platforms from its European headquarters in the Basque Country of Spain. Its product lineup centers on Linux-based embedded computers using ARM Cortex and NXP processors designed for rugged industrial and automotive deployments.

The company emphasizes open, flexible, cybersecure, and AI-supportive gateways while controlling the entire value chain and maintaining an in-house R&D&I capability to adapt hardware and software to customer needs. That combination of embedded Linux stack experience and industrial-grade design makes Owasys relevant for IoT solutions in harsh and mobile environments.

Key Highlights

• owa347A — ARM Cortex-A7 Rugged Industrial IoT Linux Platform (IP67).
• owa5X — i.MX8 Quad Core 64 bit Wireless Embedded Computer (IP6K9K).
• OWA DM offers ODM capabilities and the R&D&I team collaborates directly with customers on device development.
• The site states “We test 100% of the products and functionalities” as part of its validating process.

Services

• owa Units
• OWA DM (ODM)
• Accessories

Contact Information

Website: owasys.com

Phone: (+34) 946 025 323

Email: sales@owasys.com

Address: Bizkaia Technology Park, 202, E-48170 Zamudio, Bizkaia, Spain

6. Cellnex Telecom

Cellnex is a European telecommunications infrastructure operator that builds and manages shared radio sites, fibre and data centre assets while operating IoT networks and smart-city services across several countries. It leverages its infrastructure footprint to connect sensors and devices at scale and to deliver end-to-end IoT projects for municipalities and industry.

Cellnex deploys sensor networks, LPWA connectivity and edge-to-cloud data ingestion to integrate with municipal and enterprise systems for use cases like utilities management and asset tracking. Its delivery model supports local pilots and national rollouts, making it a relevant partner for IoT solutions development in Spain.

Key Highlights

• The SmartBrain platform aggregates and processes IoT data to deliver reliable real-time information for operational decision-making.
• In Spain Cellnex operates Sigfox as a Network Infrastructure Provider with 1,537 base stations, 2.65 million connected devices, coverage for 37.5 million people and 355 km2 of area.
• Cellnex manages multiple LPWA technologies: Sigfox infrastructure in Spain and Portugal and in Switzerland via an agreement with Heliot, and it deploys LoRa private networks in Spain and Italy plus national LoRaWAN rollouts in the UK and Ireland with Everynet.
• The site cites customer projects for water-management pilots in Valencia, parking programmes in Barcelona, and asset-tracking deployments for Correos and ServiCaixa.

Services

• Sensors
• Networks
• Platform
• Applications

Contact Information

Website: www.cellnextelecom.com

Email: personaldata@cellnextelecom.com

Address: Passeig de la Zona Franca 105 (Torre Llevant), 08038 Barcelona

7. Sngular

Sngular is a Spain‑founded technology consultancy that designs and builds connected systems by combining embedded hardware, real‑time analytics and cloud platforms to support industrial and infrastructure customers. The firm moves digital product concepts into production through cross‑discipline teams that blend software engineering, data models and on‑site hardware integration.

A concrete example is ConnectedWorks, a product co‑developed with Ferrovial that pairs energy‑autonomous IoT devices with GPS, accelerometer, gyroscope and vibration sensors and proprietary algorithms to detect load, unload and vehicle states in real time. The solution streams processed telemetry to a web dashboard for plug‑and‑play deployments across heterogeneous construction fleets and large earthmoving projects.

Key Highlights

• +1300 people (figure published on the company site, listed under “A general vision in numbers” since December 2024).
• +900 projects delivered annually, according to the company’s published figures.
• Member of the NVIDIA Partner Program, reflecting capabilities in edge computing and AI acceleration.
• R&D division Sngular Edge is cited as collaborating on projects with Google DeepMind and Repsol Technology Lab.

Services

• Software Development
• Data & AI
• Cloud Integration
• Cybersecurity

Contact Information

Website: www.sngular.com

Email: dpo@sngular.com

Address: Labastida Street, 1, Madrid, 28034, Spain

8. OpenSistemas

OpenSistemas is a Spain-based IT consultancy that designs data, AI, and cloud systems for enterprise clients. The firm translates device telemetry and business data into operational capability for industry and large organisations.

For IoT projects OpenSistemas combines real-time analytics, systems engineering, and AI-driven decisioning to build solutions that monitor assets and trigger automated responses across on-premises and cloud environments.

Key Highlights

• The company lists Spanish offices in Madrid, Sevilla, Badajoz, and A Coruña and shows operational presence in Bogotá and Santiago de Chile.
• OpenSistemas publishes team composition metrics: 28% data engineers, 18% developers, 14% DevOps/Cloud/MLOps, 10% AI experts, 8% visual knowledge, and 8% tech consultancy.
• The site names technology assets maintained by the firm, including Plataforma de IA corporativa, Automatización inteligente en interfaz, and Equipo de agentes autónomos.
• For Digital Twins projects the firm states it evaluates and selects more than one IoT platform to capture and store telemetry for modelling and prediction.

Services

• Computer Vision
• Edge deployment
• IoT platform integration
• Graspway

Contact Information

Website: opensistemas.com

Address: Madrid; Sevilla; Badajoz; A Coruña; Bogotá; Santiago de Chile

9. IoTech (iotech.es)

IoTech builds customized IoT platforms that turn on-site sensor readings into web dashboards, alerts, and reports for manufacturing operations and facility management. The company targets Spanish SMEs and small industrial sites that need operational visibility and measurable improvements without replacing existing equipment.

Their delivery model emphasizes non‑invasive sensor installs and iterative pilots that deliver actionable metrics quickly while connecting those metrics into a customer’s digital tools. IoTech tailors dashboards and integrations to each client's stack and scales projects from pilot to full production.

Key Highlights

• Uses LoRaWAN and NB‑IoT connectivity and supports standard IoT protocols like HTTPS and MQTT.
• Offers both cloud‑managed and on‑premise platform deployment options.
• Reports a typical pilot of 5–10 sensors can be operational in 2–4 weeks, with pilot pricing starting around €2,000.
• Provides FUOTA (firmware‑over‑the‑air) updates and cites clients including Hospital La Paz, BAT, Frizit, and FelpudoRent.

Services

• Industrial IoT platforms
• Smart building monitoring
• Asset monitoring
• Energy & consumption monitoring

Contact Information

Website: iotech.es

Email: info@iotech.es

LinkedIn: linkedin.com/company/iotech-es

10. Aicox Soluciones

Aicox Soluciones is a Madrid-based engineering company that combines radiofrequency and embedded-electronics design with software analytics to link field devices to enterprise operations for better energy management. The firm emphasizes R&D-led delivery and systems integration across hardware, communications, and platform layers to support regulated and mission-critical deployments.

Its work covers transport, broadcast, defense and telecom environments where the company delivers end-to-end engineering from prototype to deployment, which aligns with IoT projects that require certified hardware, telecom integration, and long-duration power solutions.

Key Highlights

• Aicox lists ISO 9001, ISO 14001 and EN 9100 certifications on its site and holds PECAL 2110, PECAL 2210 and PECAL 2310 approvals.
• The company develops Smart Sentinel, its proprietary industrial IoT system for monitoring and control.
• Aicox markets GENCELL BOX, a long-duration reserve power solution designed for critical communications infrastructure.
• The site states the group has over 35 years of engineering experience and an established international presence.

Services

• Industrial IoT Systems
• Sensor & Edge Hardware
• Energy Backup Systems
• Satellite & Telecom Integration

Contact Information

Website: www.aicox.com

Phone: +34 916 59 29 70

Email: informa@aicox.com

Address: Avenida Somosierra 12, Portal izq. planta 1ª OF.A, 28703 San Sebastián de los Reyes, Madrid, Spain

11. Iquadrat

Iquadrat develops a fully customizable, end-to-end IoT platform for smart building automation and sensing that collects data via an OpenHAB backend and connects sensors and actuators to manage comfort, security, and energy efficiency. The platform targets building and industrial environments where device interoperability and edge-capable control are required.

The platform emphasizes ML-driven control with on-device models and many out-of-the-box machine learning algorithms to enable AI-driven automation. It also includes interactive web and mobile interfaces and sensor/actuator widgets to deliver operational control and energy management in buildings.

Key Highlights

• Operates one of the most complete end-to-end Private 5G testbeds in Europe, supporting 5G Rel‑16 in Stand‑Alone mode and built with OpenStack, Kubernetes and Amarisoft 5G gNBs.
• Active Research & Development partner in European projects, with participation in initiatives such as IoSense and SPOTLIGHT and multiple 5G/6G research programmes.
• Proven enterprise integration experience with third‑party systems including SAP, Oracle, Microsoft Dynamics, Zoho, Salesforce, Monday and Pipedrive.
• Company established in 1997 with a dedicated Research & Development department for smart networking and monitoring solutions.

Services

• Application development & integration
• DevOps
• Hosting & infrastructure

Contact Information

Website: www.iquadrat.com

Email: info@iquadrat.com

Phone: +34 93 467 81 78

Address: c/ Doctor Rizal, 10 Tienda – 08006 BARCELONA

12. Smilics Technologies (Wibeee)

Smilics Technologies builds monitoring and measurement solutions for low-voltage power networks, serving residential and industrial customers from its base near Barcelona. The company targets real-time visibility and operational control across distribution networks and buildings through connected sensing and analytics.

Its product approach pairs physical metering devices with a cloud platform to enable faster fault detection, feeder-level insight, and energy optimization for utilities and commercial customers.

Key Highlights

• More than 30 years of experience in electrical measurement and monitoring.
• Part of The Yellow Nest Group.
• Product portfolio includes the Wibeee, 2Grid and Sensors product lines covering consumer metering to substation monitoring.
• In-house design and manufacturing for its hardware devices.

Services

• Substation digitization
• Transformer and feeder monitoring
• Energy platform integration

Contact Information

Website: smilics.com

Phone: +34 93 515 85 48

Address: c/ Baldrich 222-226, 08223 Terrassa (Barcelona) – Spain

13. Akalta

Akalta builds cloud and on‑premise IoT software and delivers engineering and integration services that give operations teams live visibility into equipment, personnel, processes, and inventory for industrial and logistics customers. The company pairs custom development with deployment and training to move sites from manual workflows to automated, real‑time asset management and condition monitoring.

Akalta positions its teams to integrate sensor networks with existing business systems and control layers, enabling clients to adopt edge or cloud architectures according to operational constraints. Their delivery model bundles software, on-site engineering, and preconfigured deployment kits to accelerate pilot-to-production rollouts.

Key Highlights

• Avibana is a modular condition‑monitoring platform offered in Edge, Essential, Enterprise, Provider, and Training editions for predictive maintenance deployments.
• Bambeo is a cloud or on‑premise asset‑tracking platform that supports RFID and barcode workflows and comes with portable inventory kits for rapid adoption.
• AkaltaEdge is a certified family of edge devices designed to host Avibana Edge and Bambeo installations on customer sites.
• Akalta supports industrial protocols OPC‑UA and ModBus and modern IoT protocols MQTT and Bluetooth Low Energy, and supplies deployment kits using vendors like Asus, Chainway, and Keonn.

Services

• Predictive maintenance software
• Asset tracking & RFID systems
• Edge device deployment
• Systems integration & ERP connectivity

Contact Information

Website: www.akalta.com

Phone: +34 936 940 377

Address: Camí de Can Gavarra 2, 08213 Polinyà, Spain; c/Olivar 4, 28012 Madrid, Spain; P.O.Box 59418 Abu Dhabi, UAE

14. Wiloc

Wiloc develops Industrial IoT and real-time location systems that connect assets, people, and processes across complex industrial sites. The company combines AI-driven analytics with a customized software platform and on-field applications to deliver operational visibility and control for large-scale projects.

Its delivery model pairs tailored software with field deployment and remote operation to produce measurable efficiency and safety improvements for sectors such as oil and gas, mining, construction, and renewable energy.

Key Highlights

• Solar Plants Digitalization shows a 5% improvement in cost
• Site 4.0 reports a 20% reduction in access cost.
• Smart Material Management registers a 5% traceability metric.
• Trusted by global industrial clients including Acciona, Aramco, Enel, Exxon and Iberdrola.

Services

• Site 4.0
• Solar Plants Digitalization
• Smart Material Management
• Consulting

Contact Information

Website: wiloc.com

Email: info@wiloc.com

Address: Santa María Magdalena 10-12, 28016 Madrid, SPAIN

15. Nvision (Nvision R&D)

Nvision is an R&D company in IoT that helps service providers commercialize connected products through a B2B model. The firm focuses on turning research into deployable solutions for commercial use.

The company combines IoT architectures and devices with Digital Twins, artificial intelligence, decision‑support systems, and data analytics to develop tailored hardware and software solutions. Its approach emphasizes integration across edge and cloud layers to support product-grade deployments.

Key Highlights

• Research lines explicitly listed on the site are Smart Energy, Digital Health, and Edge & Computing.
• The Digital Health line highlights contactless remote patient monitoring as a research focus.
• Edge&Computing work includes both hardware and software development for Edge and Cloud Computing.
• The website displays badges indicating financing from the European Union and Spain’s Plan de Recuperación, Transformación y Resiliencia.

Services

• Health monitoring and teleassistance
• Energy asset monitoring platform
• Smart home solution

Contact Information

Website: nvision.es

Phone: (+34) 938 041 535

Email: info@nvision.es

Address (Barcelona): Sabino de Arana 14, 2nd – 08028, Barcelona, Spain

Address (Igualada): c/ Creueta, 28, Baixos, 08700 Igualada, Barcelona, Spain

16. Ulbios

Ulbios integrates biosensorization with IoT to monitor water and air parameters in buildings in real time, combining on-site sensors with a cloud analytics layer.

Its Ulbios Analytics platform correlates facility sensor data to deliver operational insights for sectors such as hospitals, data centers and hotels, making the company a practical IoT solutions partner for building health and safety projects in Spain.

Key Highlights

• 13 years interpreting data from real installations.
• More than 1,230 evaluations of building installations completed.
• Analysis of over 230,000 data points processed using Power BI.
• Member of Spanish water and built-environment networks including the Asociación Española de Empresas del Sector del Agua and the Catalan Water Partnership.

Services

• Ulbios Water
• Ulbios TT
• Ulbios Analytics
• Hydrosense PRO Ultra Legionella Test

Contact Information

Website: ulbios.com

Phone: +34 930 025 922

Email: info@ulbios.com

Address: C/ de la Máquina, 8 B, Pol. Ind. El Regás

08850 Gavá (Barcelona)

Conclusion

SoftPro is the featured partner for this list and is positioned for Spanish enterprises, scaleups, and product teams seeking outsourced engineering. Use the summaries to match provider types to your core needs before you shortlist vendors.
When choosing a provider, prioritise the connectivity model your project requires and whether the partner can integrate with your cloud and analytics stack. Also weigh domain and regulatory experience, the balance between hardware and software capabilities, project scale and time to market, and your budget and resourcing model. Request references, pilot options, and evidence of operational support to validate fit before committing.