Castle
Castle is a Detroit-based property technology company founded in 2014 that provides landlords with a rental home management platform combining automation and on-demand labor to streamline residential property operations. Privately held with 11-50 employees.
- Company typePrivate
- Founded2014
- HeadquartersDetroit, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Castle does
Castle is a Detroit-based property technology company founded in 2014 that operates a platform enabling landlords to manage residential rental homes through a combination of automation and on-demand labor. The company positions itself as an alternative to traditional property management by replacing full-service operators with software-driven workflows supplemented by a marketplace of service workers, with the stated intent of reducing operational burden and cost for small and mid-sized landlords. Headcount is reported in the 11-50 range, and Castle is privately held.
The company's capital history reflects early validation from top-tier venture investors. Across six disclosed rounds between 2014 and February 2019, Castle raised approximately $12.5 million in cumulative funding. Notable investors include Khosla Ventures, First Round Capital, F-Prime Capital, Index Ventures, Liquid 2 Ventures, PJC, SV Angel, and Y Combinator. The largest round was a $9.2 million Series A in February 2019 led by a syndicate of First Round, F-Prime, Index, and Y Combinator. No funding events have been disclosed since 2019.
A material data integrity issue is present in the input: scraped content from Castle's registered domain (entercastle.com) depicts an unrelated India-focused sports betting and casino gaming operation branded as 'Reddy Book,' rather than a U.S. residential property management service. The structured firmographic data, investor composition, and funding history are internally consistent with a property technology company; the live website content does not match that profile. This conflict is flagged for diligence but does not alter the core company identification drawn from the firmographic and capital markets record.
Castle firmographics
Firmographics- Name
- Castle
- Legal name
- Reddy Book
- Website
- https://entercastle.com
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Castle is a Detroit-based property technology company founded in 2014 that provides landlords with a rental home management platform combining automation and on-demand labor to streamline residential property operations. Privately held with 11-50 employees.
- Ownership category
- akta.pro rank
Castle industry classification
Industry- Product category
- Property Management Services
- NAICS
- Residential Property Managers (531311), Real Estate Property Managers (53131)
- SIC
- Real Estate Agents & Managers (For Others) (6531), Operators Of Apartment Buildings (6513)
- akta.pro primary industry
- Multifamily Apartment Property Management (BPAJAFAA)
- akta.pro secondary industries
- Residential Lease Administration & Tenant Services (BPAJAFAL), Landlord/Property Manager Turnover Cleaning (HSAEACAE)
Keywords
Where Castle is headquartered
LocationHeadquarters
- HQ city
- Detroit
- HQ country
- United States
- HQ region
- North America
Markets served
Castle business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Betting Transaction Fees: Platform generates revenue through transaction fees on sports betting activities including cricket, football, tennis, kabaddi, and casino games. Revenue accrues from the spread between betting odds and player stakes.
- Casino and Gaming Revenue: Live casino games including Roulette, Blackjack, Baccarat, Teen Patti, and Andar Bahar contribute to platform revenue through house edge and transaction fees.
- Agent/Reseller Network Commissions: Multi-tier commission structure where agents and super-agents manage downstream players and earn commissions based on player activity and betting volume.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Transaction based/ take rate | Pay-as-you-go | Free account registration with minimum deposit requirement |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels3 records
Castle product offering
Product offeringCore offering
Castle manages rental homes for landlords using automation technology and on-demand labor. The company delivers outsourced residential property management services that handle day-to-day operations for rental property owners, reducing their operational burden through software-driven workflows and flexible labor.
Product overview
Reddy Book is an online sports betting and gaming platform operated by Castle that offers a unified multi-feature platform for cricket, football, casino games, and other sports markets. The core product is the Cricket ID and Football ID system—a verified account infrastructure that provides access to pre-match and live betting markets, wallet operations, and transaction management. The platform also includes live casino gaming with Indian favorites (Teen Patti, Andar Bahar) and international games (Blackjack, Roulette, Baccarat). Built as a multi-tier architecture, the platform supports not only end-users but also operates through agent networks with dedicated panels for operators, agents, resellers, finance, trading, compliance, and support. Available across Android, iOS, Desktop, and Tablet devices with 24/7 customer support through live chat, phone, email, WhatsApp, and Telegram.
Differentiator
Problem solved
Functional benefit
Quantifiable outcome
- 100+ games available across sports and casino categories
- +1 more outcomes
Companies that use Castle
Customer profileNamed customers2 records
Segments4 records
Ideal customer profiles1 record
Castle technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Castle partnerships and signals
Strategic signalScale indicators3 records
Recent moves4 records
Expansion highlights3 records
Castle competitors and assessment
Company assessmentDirect peers
- Buildium: Buildium is a SaaS property management platform serving residential landlords and property managers. It is directly comparable to Castle as a software-led residential PM solution targeting small- and mid-portfolio landlords.
- AppFolio: AppFolio is a publicly traded property management software platform serving residential and commercial portfolios. It competes head-to-head with Castle for residential landlord accounts and represents the scaled SaaS benchmark in the category.
- TurboTenant: TurboTenant offers free property management software for independent landlords, monetizing through ancillary services. Like Castle, it targets DIY landlords and small residential portfolios with a tech-led approach.
- Avail: Avail is a property management platform for landlords offering listing, tenant screening, and rent collection. It is comparable to Castle as a software-first residential PM tool aimed at independent landlords.
- Hemlane: Hemlane combines software with a network of local agents to provide full-service property management. It mirrors Castle's hybrid model of automation paired with on-demand local labor.
- TenantCloud: TenantCloud is a property management platform for landlords and tenants, offering rent collection, maintenance, and accounting. It is comparable to Castle as a residential PM software play serving small landlords.
- Mynd Property Management: Mynd is a tech-enabled residential property management company serving individual and institutional SFR investors. It is directly comparable to Castle as a hybrid software-plus-services PM operator targeting rental home portfolios.
Emerging players
- DoorLoop: DoorLoop is a newer all-in-one property management platform that has scaled quickly. It is comparable as a fast-growing residential and commercial PM software competitor to Castle.
- RentRedi: RentRedi is a landlord-focused mobile property management app. It is comparable to Castle as a tech-led PM solution targeting individual and small-portfolio residential landlords.
Broad incumbents
- Zillow Rental Manager: Zillow Rental Manager is Zillow's free property management tool integrated with its marketplace. It is comparable as a large-incumbent free-tier offering that competes with Castle for landlord mindshare.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat3 records
Key risks5 records
Key highlights5 records
Customer concentration
Castle financial estimates
Financial estimateRevenue estimate
Valuation estimate
Castle leadership team
Management profileNumber of profiles
Castle funding detail
Funding detailFunding overview
Funding rounds6 records
Investors8 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Castle M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Castle
What does Castle do?
Castle manages rental homes for landlords using automation technology and on-demand labor. The company delivers outsourced residential property management services that handle day-to-day operations for rental property owners, reducing their operational burden through software-driven workflows and flexible labor.
Is Castle a public or private company?
Castle is a private company. It is classified as venture growth investor backed and is currently operating.
When was Castle founded?
Castle was founded in 2014. It employs 11 to 50 people.
Where is Castle based?
Castle is headquartered in Detroit, United States, in the North America region.
How does Castle make money?
Three revenue lines are on record. Betting Transaction Fees are the primary driver. The others are casino and Gaming Revenue and agent/Reseller Network Commissions.
Who are Castle's main competitors?
Direct peers on record are Buildium, AppFolio, TurboTenant, Avail, Hemlane, TenantCloud and Mynd Property Management. Emerging players are DoorLoop and RentRedi. Zillow Rental Manager is listed as a broad incumbent.
Does Castle have an API?
No public API is recorded for Castle.
What industry is Castle in?
Castle's product category is Property Management Services. Its primary akta.pro industry code is BPAJAFAA, Multifamily Apartment Property Management, with a secondary code of BPAJAFAL, Residential Lease Administration & Tenant Services. Its NAICS code is 531311 and its SIC code is 6531.