StartupBlink

51 Top startups in San Luis Obispo for August 2026

We rank Postal, Flume and Hello Work in San Luis Obispo along with 48 other startups based on an algorithm that scores startups based on total investment, employee count, and quarterly website traffic. San Luis Obispo startup ecosystem ranks #437 globally and #118 in United States.

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Best Startups in San Luis Obispo for 2026

1st
Postal logo
PostalSB Score: 468

Postal is the leading intelligent gifting platform that helps thousands of businesses increase their pipeline, retain customers, and reward employees. The platform and its global marketplace enable customers to automate direct mail, manage branded company swag, and send personalized gifts, all while centralizing cost and reducing waste. Postal is the everything app for gifting, integrating seamlessly with your favorite workplace tools including Salesforce, Microsoft, Google, Hubspot, and Workday. This allows you to automate and track sends and spending effortlessly. At Postal, we believe in maintaining a strong work/life/spiritual balance, which is fostered by a robust company culture focused on making the world a better place. We embrace people for who they are and believe that diversity, inclusion, and belonging are our greatest strengths. Postal has raised over $30 million in two funding rounds from top-tier investors such as Mayfield Fund (Marketo, Outreach) and OMERS Capital (Shopify, Crunchbase).

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Website
postal.io
Employee range
101 – 250
Web Traffic (Monthly)
Funding amount
$31M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
2nd
Flume logo
FlumeSB Score: 425

Flume is dedicated to conserving water and safeguarding homes by providing homeowners and communities with real-time water usage data. Founded in 2016 and based in San Luis Obispo, California, Flume empowers users to monitor their water consumption, helping to eliminate waste and promote sustainable practices.

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Website
www.flumewater.com
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
$7.5M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
3rd
Hello Work logo
Hello WorkSB Score: 419

HelloWork is online employment, recruitment, and training service that assists workers and students throughout their professional life, as well as companies, recruitment agencies and temporary employment agencies with hr and recruitment matters, and helps training centres and schools make their offers.

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Website
hellowork.com
Employee range
501 – 1,000
Web Traffic (Monthly)
Funding amount
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
4th
Pashion Footwear logo
Pashion FootwearSB Score: 401

Pashion has completely "reinvented the heel" through the creation of the world's first fully convertible heel-to-flat technology. Combining excellent technical execution with classic styles, their disruptive two-shoes-in-one design is the up-and-coming solution to the pain, injury, and inconvenience associated with wearing high heels. The company has sourced a supply chain and production process that is completely unique to the high heel space, and their innovative design is patent-pending in 30 countries. In addition to heel-to-flat capability, Pashion shoes boast incredible comfort ratings due to their unique material profile. The brand has also recently brought to market an interchangeable heel kit design, allowing for multiple aesthetic looks to appear on one shoe. Pashion is building a lifestyle brand focused on empowering women in their daily lives. The woman of today deserves a shoe that can keep up with her - no matter where she’s headed. Pashion has raised a total of $3.17M in angel & venture funding.

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Website
pashionfootwear.com
Employee range
1 – 10
Web Traffic (Monthly)
Funding amount
$3.6M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
5th
WhiteFox Defense Technologies logo

WhiteFox Defense Technologies develops and provides drone threat mitigation device the DroneFox. It offers two systems DroneFox Tactical, a portal mobile device which responds to drone threats based on operator feedback or automatically based on preset conditions; DroneFox Fortify, a fixed device which integrates and provides continues automatic protection of vulnerable facilities and critical infrastructure. WhiteFox Defense's device detects small and modified drones in airspace, analyses target drones based on variables including its model, location, and flight pattern, and reroutes. Additionally, its clientele include critical infrastructure protection, homeland security, public safety, and defense. Luke Fox founded WhiteFox Defense in 2016. It has its headquarters in San Luis Obispo in California.

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Website
www.whitefoxdefense.com
Employee range
51 – 100
Web Traffic (Monthly)
Funding amount
$26.2M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
6th
Rx Redefined logo
Rx RedefinedSB Score: 355

Rx Redefined empowers physicians to provide specialized medical products to patients through a seamless logistics platform. Founded in 2018 by Brandon Boots and Erik Smith, the Oakland-based company offers innovative healthcare solutions.

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Website
www.rxredefined.com
Employee range
51 – 100
Web Traffic (Monthly)
Funding amount
$50M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
7th
Welkio logo
WelkioSB Score: 353

DonateStock is a B2B fintech software company unlocking a $100 billion market by making charitable stock gifting accessible and easy for millions of nonprofits and investors. Our API-driven Easy Button enables investors to donate stock with ease while enabling all nonprofits to receive stock gifts with transparency and automation. As the de facto leader in charitable stock gifting, we offer the first and only end-to-end stock gifting solution for donors, advisors and nonprofits. Our plug-in is the first to be distributed by online donation platforms to offer stock gifting as a turnkey solution to tens of thousands of nonprofits.

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Website
welkio.com
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
$2.3M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
8th
King Energy logo
King EnergySB Score: 339

King Energy is an innovative energy company that brings solar power solutions to multi-tenant commercial properties. By leasing unused roof space from property owners, King Energy manages the financing, installation, and long-term maintenance of solar infrastructure, simplifying the transition to renewable energy for all stakeholders involved.

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Website
www.kingenergy.com
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
$14.6M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
9th
Tastry, Inc. logo
Tastry, Inc.SB Score: 321

Tastry is a sensory sciences company that combines analytical chemistry, consumer flavor preferences and machine learning to predict market performance for sensory-based products. Tastry’s patented method provides consumer recommendations with incredible accuracy.

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Website
tastry.com
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
$10.3M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
10th
FarmBot logo
FarmBotSB Score: 307

FarmBot is an open-source CNC farming machine and software package designed for small-scale precision food production. Similar to 3D printers and CNC milling machines, FarmBot hardware employs linear guides in the X, Y, and Z directions. This allows for tooling such as seed injectors, watering nozzles, sensors, and weed removal tools to be precisely positioned and used on the plants and soil. FarmBot is controlled by an Arduino/RAMPS stack and an internet connected Raspberry Pi 2. The hardware is designed to be simple, scalable, hackable, and easily produced.

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Website
farm.bot
Employee range
1 – 10
Web Traffic (Monthly)
Funding amount
$813K
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
11th
Fracsun logo
FracsunSB Score: 303

Fracsun offers complete PV soiling monitoring solutions for solar array owners, operators, and developers. Fracsun specializes in measuring on-site soiling loss with its patented ARES soiling management system. It eliminates uncertainty by directly measuring soiling with local instrumentation, allowing teams to confidently monitor and manage the soiling loss. Fracsun's soiling dataset eliminates the guesswork in project development, lowering financial risk. Fracsun's mission is to improve the performance of solar assets.

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Website
www.fracsun.com
Employee range
1 – 10
Web Traffic (Monthly)
Funding amount
$2.1M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)

Total amount:38

Most Funded Startups in San Luis Obispo for 2026

The top three most funded startups in San Luis Obispo have raised total funding of more than USD 109M. Rx Redefined has 0.61% more funding than Postal.
1st
Rx Redefined logo
Rx RedefinedSB Score: 355

Rx Redefined empowers physicians to provide specialized medical products to patients through a seamless logistics platform. Founded in 2018 by Brandon Boots and Erik Smith, the Oakland-based company offers innovative healthcare solutions.

View Full Page
Website
www.rxredefined.com
Employee range
51 – 100
Web Traffic (Monthly)
Funding amount
$50M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
2nd
Postal logo
PostalSB Score: 468

Postal is the leading intelligent gifting platform that helps thousands of businesses increase their pipeline, retain customers, and reward employees. The platform and its global marketplace enable customers to automate direct mail, manage branded company swag, and send personalized gifts, all while centralizing cost and reducing waste. Postal is the everything app for gifting, integrating seamlessly with your favorite workplace tools including Salesforce, Microsoft, Google, Hubspot, and Workday. This allows you to automate and track sends and spending effortlessly. At Postal, we believe in maintaining a strong work/life/spiritual balance, which is fostered by a robust company culture focused on making the world a better place. We embrace people for who they are and believe that diversity, inclusion, and belonging are our greatest strengths. Postal has raised over $30 million in two funding rounds from top-tier investors such as Mayfield Fund (Marketo, Outreach) and OMERS Capital (Shopify, Crunchbase).

View Full Page
Website
postal.io
Employee range
101 – 250
Web Traffic (Monthly)
Funding amount
$31M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
3rd
Novocuff logo
NovocuffSB Score: 270

Novocuff is a medical device firm that aims to improve pregnancy outcomes and reduce preterm deliveries caused by PPROM and cervical shortening.

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Website
www.novocuff.com
Employee range
1 – 10
Web Traffic (Monthly)
Funding amount
$28M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)

Total amount:38

Top Hiring Startups in San Luis Obispo by Employee Number

The top three hiring startups in San Luis Obispo have an median employee size that is between [101-250]
1st
Hello Work logo
Hello WorkSB Score: 419

HelloWork is online employment, recruitment, and training service that assists workers and students throughout their professional life, as well as companies, recruitment agencies and temporary employment agencies with hr and recruitment matters, and helps training centres and schools make their offers.

View Full Page
Website
hellowork.com
Employee range
501 – 1,000
Web Traffic (Monthly)
Funding amount
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
2nd
Postal logo
PostalSB Score: 468

Postal is the leading intelligent gifting platform that helps thousands of businesses increase their pipeline, retain customers, and reward employees. The platform and its global marketplace enable customers to automate direct mail, manage branded company swag, and send personalized gifts, all while centralizing cost and reducing waste. Postal is the everything app for gifting, integrating seamlessly with your favorite workplace tools including Salesforce, Microsoft, Google, Hubspot, and Workday. This allows you to automate and track sends and spending effortlessly. At Postal, we believe in maintaining a strong work/life/spiritual balance, which is fostered by a robust company culture focused on making the world a better place. We embrace people for who they are and believe that diversity, inclusion, and belonging are our greatest strengths. Postal has raised over $30 million in two funding rounds from top-tier investors such as Mayfield Fund (Marketo, Outreach) and OMERS Capital (Shopify, Crunchbase).

View Full Page
Website
postal.io
Employee range
101 – 250
Web Traffic (Monthly)
Funding amount
$31M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
3rd
Off Day Trainer logo
Off Day TrainerSB Score: 280

Off Day Trainer is a text messaging program designed with coaches in mind. It scales businesses and clients outside of sessions, personalizes, and automates client communication. To assist people to build and manage the 30-day challenge, people may receive a resource library and training sessions.

View Full Page
Website
offdaytrainer.com
Employee range
101 – 250
Web Traffic (Monthly)
Funding amount
$3.6M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
4th
WhiteFox Defense Technologies logo

WhiteFox Defense Technologies develops and provides drone threat mitigation device the DroneFox. It offers two systems DroneFox Tactical, a portal mobile device which responds to drone threats based on operator feedback or automatically based on preset conditions; DroneFox Fortify, a fixed device which integrates and provides continues automatic protection of vulnerable facilities and critical infrastructure. WhiteFox Defense's device detects small and modified drones in airspace, analyses target drones based on variables including its model, location, and flight pattern, and reroutes. Additionally, its clientele include critical infrastructure protection, homeland security, public safety, and defense. Luke Fox founded WhiteFox Defense in 2016. It has its headquarters in San Luis Obispo in California.

View Full Page
Website
www.whitefoxdefense.com
Employee range
51 – 100
Web Traffic (Monthly)
Funding amount
$26.2M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)

Total amount:51

Explore More Top Startups

Explore the Startup Ecosystem of San Luis Obispo

National Rank

(United States)

118th

new

Regional Rank

(North America)

142nd

7

Global Rank

(WorldWide)

437th

44

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Top Cities for Startups in United States - Ranked by StartupBlink

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2026 National Rank CityGlobal RankTotal Score & National ShareAnnual Growth

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