StartupBlink

141 Top startups in Carlsbad for June 2026

We rank Ezoic, Airspace and Airspace Technologies in Carlsbad along with 138 other startups based on an algorithm that scores startups based on total investment, employee count, and quarterly website traffic. Carlsbad is part of San Diego startup ecosystem which ranks #23 globally and #11 in North America.

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Best Startups in Carlsbad for 2026

SB Score:526

Ezoic is a server-side PaaS using machine learning that helps publishers make better decisions over time. By predicting how a website visitor will respond to an automated and individualized change, Ezoic boosts user experience metrics, and site speed and increases revenues from personalising each visit. Ezoic optimizes over 1.3BN user experiences each month (Sep 2022) and the system is offered as a self-serve ad-funded, subscription, or as an Enterprise (SaaS) solution.

Industry:
Software & Data
Subindustry:
Artificial Intelligence

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SB Score:524

Airspace was created in 2016 to solve the problems that plagued time-critical deliveries. After more than a decade in logistics, Nick Bulcao teamed up with Ryan Rusnak to build the industry’s most technologically advanced platform in order to expedite deliveries, improve accuracy, and provide full transparency for critical shipments. Headquartered in Carlsbad, California, Airspace has grown to over 200 members and counting. Their reach now extends overseas, where the Airspace B.V. office in Amsterdam supports their rapid international expansion. They serve a growing list of industries that rely on time-critical shipping, including healthcare, aerospace, and manufacturing. Airspace’s technology is revolutionizing the industry by automating a wildly outdated manual process. Proprietary algorithms and machine learning techniques provide instant quotes, optimized routing, and rapid driver dispatch. They are the only logistics company that pairs the most advanced technology with real-time communication on every shipment.

Industry:
Software & Data
Subindustry:
Software

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SB Score:469

Airspace was created in 2016 to solve the problems that plagued time-critical deliveries. After more than a decade in logistics, Nick Bulcao teamed up with Ryan Rusnak to build the industry’s most technologically advanced platform in order to expedite deliveries, improve accuracy, and provide full transparency for critical shipments. Headquartered in Carlsbad, California, Airspace has grown to over 200 members and counting. Their reach now extends overseas, where the Airspace B.V. office in Amsterdam supports their rapid international expansion. They serve a growing list of industries that rely on time-critical shipping, including healthcare, aerospace, and manufacturing. Airspace’s technology is revolutionizing the industry by automating a wildly outdated manual process. Proprietary algorithms and machine learning techniques provide instant quotes, optimized routing, and rapid driver dispatch. They are the only logistics company that pairs the most advanced technology with real-time communication on every shipment.

Industry:
Transportation
Subindustry:
Logistics

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SB Score:465

MaxLinear is a provider of highly integrated, radio-frequency analog and mixed signal semiconductor solutions for broadband communications applications. Their high performance radio-frequency, or RF, receiver products capture and process digital and analog broadband signals to be decoded for various applications. These products include both RF receivers and RF receiver systems-on-chip, or SoCs, which incorporate their highly integrated radio system architecture and the functionality necessary to demodulate broadband signals.

Industry:
Hardware & IoT
Subindustry:
Hardware

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SB Score:464

Arlo offers high-definition security cameras, smart doorbells, and lighting that can be easily connected to the internet. With options for HD and 4K resolution, Arlo's products provide top-notch surveillance for peace of mind.

Industry:
Hardware & IoT
Subindustry:
Consumer Electronics

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SB Score:449

Nalu Medical offers implantable neurostimulation systems that aim to reduce chronic nerve pain through spinal cord stimulation (SCS) and peripheral nerve stimulation (PNS). It provides a small, battery-free micro-implantable pulse generator (micro-IPG) plus leads, powered wirelessly via an external wearable “Therapy Disc,” enabling treatment without implanting a battery. The system includes software-based waveforms and is cleared by the U.S. FDA for both SCS and PNS indications. Therapy is managed through a smartphone app for patient control and system upgrades. Recent development includes a smaller version of the Therapy Disc to improve comfort and broaden applicability for patients needing peripheral nerve treatment.

Industry:
Healthtech
Subindustry:
Health Care

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SB Score:419

SynergEyes®, Inc. was founded in 2001 with a recognized need for a hybrid contact lens that combined the superior visual acuity of a rigid gas permeable lens with the comfort of a soft contact lens. The revolutionary SynergEyes® hybrid contact lens allows you to enjoy the best of both worlds - a stable, high oxygen permeable rigid center that delivers consistent, crisp, clear vision while the outer skirt gives you all the all-day comfort of a soft lens.

Industry:
Healthtech
Subindustry:
Health Care

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SB Score:415

Acutus Medical develops medical technologies to treat complex cardiac arrhythmia. The company's platform displays the heart’s true activation pattern, turning the chaos of a complex arrhythmia into a clear vision for electrophysiologists. Acutus Medical is a privately funded company founded in 2011 and based in Carlsbad, California. Its products are co-developed in the U.S. and Europe with an exceptional team of medical scientists, biomedical engineers, and other professionals. It was founded in 2011 and headquartered in Carlsbad, California.

Industry:
Healthtech
Subindustry:
Biotechnology

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Argonaut provides contract manufacturing for biopharmaceutical, diagnostics and life science organizations. The company's services include high-yield aseptic fill/finish, reagent formulation, filling, kitting, lyophilization, and analytical support. It provides a wide range of diagnostics and drug products for diverse outsourcing needs.

Industry:
Healthtech
Subindustry:
Biotechnology

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SB Score:402

Glo Pharma develops cutting-edge aesthetic skincare products. Currently operating in stealth mode, the company is revolutionizing the healthcare industry with innovative solutions for skincare.

Industry:
Healthtech
Subindustry:
Life Sciences

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SB Score:393

Venue Report is a group focused marketplace that leads with a content strategy. As a B2B2C platform they help consumers find, communicate, and book venue spaces while simultaneously helping venues market, analyze and convert bookings of their spaces. Inspiring togetherness, promoting celebrations and highlighting exceptional spaces, places, and locales across the globe best for groups, their motto is "get out and gather".

Industry:
Ecommerce & Retail
Subindustry:
Ecommerce

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Total amount:141

Top 31 Healthtech Startups in Carlsbad for 2026

The top three Healthtech startups in Carlsbad have raised more than USD 602M. Carlsbad is part of San Diego startup ecosystem which ranks #7 globally for the Healthtech industry.
SB Score:449

Nalu Medical offers implantable neurostimulation systems that aim to reduce chronic nerve pain through spinal cord stimulation (SCS) and peripheral nerve stimulation (PNS). It provides a small, battery-free micro-implantable pulse generator (micro-IPG) plus leads, powered wirelessly via an external wearable “Therapy Disc,” enabling treatment without implanting a battery. The system includes software-based waveforms and is cleared by the U.S. FDA for both SCS and PNS indications. Therapy is managed through a smartphone app for patient control and system upgrades. Recent development includes a smaller version of the Therapy Disc to improve comfort and broaden applicability for patients needing peripheral nerve treatment.

Industry:
Healthtech
Subindustry:
Health Care

City Rank (Carlsbad)

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SB Score:419

SynergEyes®, Inc. was founded in 2001 with a recognized need for a hybrid contact lens that combined the superior visual acuity of a rigid gas permeable lens with the comfort of a soft contact lens. The revolutionary SynergEyes® hybrid contact lens allows you to enjoy the best of both worlds - a stable, high oxygen permeable rigid center that delivers consistent, crisp, clear vision while the outer skirt gives you all the all-day comfort of a soft lens.

Industry:
Healthtech
Subindustry:
Health Care

City Rank (Carlsbad)

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SB Score:415

Acutus Medical develops medical technologies to treat complex cardiac arrhythmia. The company's platform displays the heart’s true activation pattern, turning the chaos of a complex arrhythmia into a clear vision for electrophysiologists. Acutus Medical is a privately funded company founded in 2011 and based in Carlsbad, California. Its products are co-developed in the U.S. and Europe with an exceptional team of medical scientists, biomedical engineers, and other professionals. It was founded in 2011 and headquartered in Carlsbad, California.

Industry:
Healthtech
Subindustry:
Biotechnology

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Total amount:31

Top 6 Energy & Environment Startups in Carlsbad for 2026

The top three Energy & Environment startups in Carlsbad have raised more than USD 17.7M. Carlsbad is part of San Diego startup ecosystem which ranks #14 globally for the Energy & Environment industry.
SB Score:364

Source Intelligence delivers supply chain intelligence and supplier performance management solutions that support corporate sustainability, regulatory compliance, and social responsibility initiatives.

Industry:
Energy & Environment
Subindustry:
Cleantech

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SB Score:243

HelioVolta is a provider of independent inspection and technical field services for renewable energy projects and energy storage solutions.

Industry:
Energy & Environment
Subindustry:
Clean Energy

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SB Score:153

Icarus RT is an eco-friendly, engineering company. Icarus takes strategic actions to cope with the fundamental challenges of converting solar energy into usable electric energy

Industry:
Energy & Environment
Subindustry:
Energy & Environment-Other

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Total amount:6

Top 13 Marketing & Sales Startups in Carlsbad for 2026

The top three Marketing & Sales startups in Carlsbad have raised more than USD 38.7M. Carlsbad is part of San Diego startup ecosystem which ranks #21 globally for the Marketing & Sales industry.
SB Score:307

Erised Semiconductor is a circuit designer and manufacturer that provides users with display driver and power management chips. The applications can be found in radiofrequency applications, discrete devices, and other products.

Industry:
Marketing & Sales
Subindustry:
Adtech

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SB Score:254

Earn points and rewards on every purchase you make with thousands of top brands! Join your friends in earning gift card rewards, redeemable in-store or online, right from your bitmo digital wallet.

Industry:
Marketing & Sales
Subindustry:
Adtech

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SB Score:191

Eliminate the uncertainty in choosing products by answering key questions with our AI-powered platform. Match consumers with the perfect services, products, and accessories using machine learning and expert insights. Let us guide you through the decision-making process with ease.

Industry:
Marketing & Sales
Subindustry:
Digital Marketing

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Total amount:13

Most Funded Startups in Carlsbad for 2026

The top three most funded startups in Carlsbad have raised total funding of more than USD 660M. Nalu Medical has 0.06% more funding than Acutus Medical.
SB Score:449

Nalu Medical offers implantable neurostimulation systems that aim to reduce chronic nerve pain through spinal cord stimulation (SCS) and peripheral nerve stimulation (PNS). It provides a small, battery-free micro-implantable pulse generator (micro-IPG) plus leads, powered wirelessly via an external wearable “Therapy Disc,” enabling treatment without implanting a battery. The system includes software-based waveforms and is cleared by the U.S. FDA for both SCS and PNS indications. Therapy is managed through a smartphone app for patient control and system upgrades. Recent development includes a smaller version of the Therapy Disc to improve comfort and broaden applicability for patients needing peripheral nerve treatment.

Industry:
Healthtech
Subindustry:
Health Care

City Rank (Carlsbad)

0

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Regional Rank (North America)

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Global Rank (WorldWide)

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SB Score:415

Acutus Medical develops medical technologies to treat complex cardiac arrhythmia. The company's platform displays the heart’s true activation pattern, turning the chaos of a complex arrhythmia into a clear vision for electrophysiologists. Acutus Medical is a privately funded company founded in 2011 and based in Carlsbad, California. Its products are co-developed in the U.S. and Europe with an exceptional team of medical scientists, biomedical engineers, and other professionals. It was founded in 2011 and headquartered in Carlsbad, California.

Industry:
Healthtech
Subindustry:
Biotechnology

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SB Score:345

Ostendo Technologies develops solid-state lighting (SSL) based display technologies and products for commercial, consumer, and government markets. Ostendo Technologies was founded in 2005 and is based in Carlsbad, California.

Industry:
Hardware & IoT
Subindustry:
Consumer Electronics

City Rank (Carlsbad)

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Total amount:141

Top Hiring Startups in Carlsbad by Employee Number

The top three hiring startups in Carlsbad have an median employee size that is between [1001-5000]
SB Score:465

MaxLinear is a provider of highly integrated, radio-frequency analog and mixed signal semiconductor solutions for broadband communications applications. Their high performance radio-frequency, or RF, receiver products capture and process digital and analog broadband signals to be decoded for various applications. These products include both RF receivers and RF receiver systems-on-chip, or SoCs, which incorporate their highly integrated radio system architecture and the functionality necessary to demodulate broadband signals.

Industry:
Hardware & IoT
Subindustry:
Hardware

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SB Score:312

BeyondTrust is the global identity security leader protecting Paths to Privilege™. Our identity-centric approach goes beyond securing privileges and access, empowering organizations with the most effective solution to manage the entire identity attack surface and neutralize threats, whether from external attacks or insiders. BeyondTrust is leading the charge in transforming identity security to prevent breaches and limit the blast radius of attacks, while creating a superior customer experience and operational efficiencies. We are trusted by 20,000 customers, including 75 of the Fortune 100, and our global ecosystem of partners. Learn more at www.beyondtrust.com.

Industry:
Software & Data
Subindustry:
Cybersecurity

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SB Score:524

Airspace was created in 2016 to solve the problems that plagued time-critical deliveries. After more than a decade in logistics, Nick Bulcao teamed up with Ryan Rusnak to build the industry’s most technologically advanced platform in order to expedite deliveries, improve accuracy, and provide full transparency for critical shipments. Headquartered in Carlsbad, California, Airspace has grown to over 200 members and counting. Their reach now extends overseas, where the Airspace B.V. office in Amsterdam supports their rapid international expansion. They serve a growing list of industries that rely on time-critical shipping, including healthcare, aerospace, and manufacturing. Airspace’s technology is revolutionizing the industry by automating a wildly outdated manual process. Proprietary algorithms and machine learning techniques provide instant quotes, optimized routing, and rapid driver dispatch. They are the only logistics company that pairs the most advanced technology with real-time communication on every shipment.

Industry:
Software & Data
Subindustry:
Software

City Rank (Carlsbad)

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SB Score:469

Airspace was created in 2016 to solve the problems that plagued time-critical deliveries. After more than a decade in logistics, Nick Bulcao teamed up with Ryan Rusnak to build the industry’s most technologically advanced platform in order to expedite deliveries, improve accuracy, and provide full transparency for critical shipments. Headquartered in Carlsbad, California, Airspace has grown to over 200 members and counting. Their reach now extends overseas, where the Airspace B.V. office in Amsterdam supports their rapid international expansion. They serve a growing list of industries that rely on time-critical shipping, including healthcare, aerospace, and manufacturing. Airspace’s technology is revolutionizing the industry by automating a wildly outdated manual process. Proprietary algorithms and machine learning techniques provide instant quotes, optimized routing, and rapid driver dispatch. They are the only logistics company that pairs the most advanced technology with real-time communication on every shipment.

Industry:
Transportation
Subindustry:
Logistics

City Rank (Carlsbad)

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Total amount:141

Explore the Startup Ecosystem of Carlsbad

National Rank

(United States)

new

Regional Rank

(North America)

11th

2

Global Rank

(WorldWide)

23rd

1

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