Whereas in the old days, owners had to make do with toys and treats, today an entire cottage industry has sprouted up around making sure our four-legged friends enjoy the same tech-enhanced services and amenities we do. If an on-demand service exists for humans, there’s a good chance it also exists for dogs.

The latest example: Embark, a DNA kit startup company for dogs, which just raised $4.5 million in seed funding.

Much like its human equivalent, 23andMe, (founder Anne Wojcicki participated in the seed round), Embark sells $199 mail-in kits. Once your dog’s spit is collected and you send back the sample, the company analyzes the DNA to provide insights including pedigree, geographical ancestral roots, as well as genetic markers that could indicate a higher risk for more than 100 genetically inherited diseases.

Founders, take note: if you’re looking for a startup idea, try recreating a successful on-demand tech company’s business model, just…for dogs. (Get on it, though, and be sure to do your due diligence. The space is already pretty crowded.)

Below, a partial list of popular human-facing startups — and their canine-facing equivalents.

Human version: Airbnb, an online marketplace that enables people to list, find, and rent vacation homes. A good alternative to a hotel.
Dog version: DogVacay and Rover, which recently raised $65 million in Series F funding, two services that match owners with local hosts who are willing to board their dogs. A good alternative to a kennel.

Human version: Seamless, an online food ordering service that facilitates takeout and delivery options from a network of restaurants.
Dog version: Pet Plate, Ollie, and The Farmer’s Dog, among other startups, deliver precooked meals for dogs (options include Turkey and Brown Rice, Fish and Potatoes, and Beef and Vegetables).

Human version: Fitbit, an activity tracker that monitors steps walked, heart rate, and sleep quality, among other data points.
Dog version: Whistle, a GPS-enabled tracking device that attaches to a dog’s collar to monitor activity level. (The company was acquired by Mars Petcare for $117 million last year.)

Human version: Tinder, a dating app that matches users based on location.
Dog version: TwinDog connects nearby owners looking to set up “play dates” for their dogs.

Human version: Uber, an app that allows users to request a ride via smartphone.
Dog version: Wagwalking, an on-demand app that allows users to request dog walking sessions via smartphone.

Human version: BirchBox, a subscription service that sends users a box of beauty samples every month.
Dog version: BarkBox, a subscription service that sends users a box of toys, treats and other dog supplies every month.

Human version: HelloSociety, a network of social media “influencers.”
Dog version: WagSociety, a network of social media “dogfluencers”

Human version: The Sartorialist, a fashion website that features candid snapshots of stylish residents in cities such as New York, Milan and Paris.
Dog version: The Dogist, a website that features candid snapshots of dogs around the country.

Human version: Nest, which produces ‘smart’ home appliances, including Wi-Fi-enabled thermostats, smoke detectors, and other security systems.
Dog version: Zencrate, a ‘smart; Wi-Fi-enabled dog crate that aims to reduce canine anxiety with motion-activated “soothing” music, among other features.

Human version: WeWork, a coworking space that rents desks to entrepreneurs, startups and freelancers.
Dog version: The Ruff Club, a dog friendly social club where owners can work while their dogs play.

Human version: Instacart, an on-demand grocery delivery service.
Dog version: PetcoNow, Instacart’s on-demand pet food and supply service.