Engineering-led AI implementation · United States & Croatia
We build and operate customer-facing AI systems.
Kingstone turns voice, messaging, scheduling, and intake into one configured operation—connected to your tools, reviewed in production, and designed to hand judgment back to people.
Featured client deployment
A closer look at a live client operation.
Inside a Kingstone deployment
One accountable system from first inquiry to completed action.
Customer conversations move through approved knowledge, operating rules, and the tools your team already uses—with every action recorded and a person owning the exceptions.
Map the operating workflow
We identify the inquiries, systems, decisions, edge cases, and human owners the implementation must account for.
Build a working demonstration
Your team reviews a configured example using your services, approved knowledge, and representative scenarios.
Integrate and scenario-test
We connect the systems in scope, validate each action and handoff, and test approved paths before launch.
Launch, review, and operate
The deployed workflow is monitored and improved under the support and review cadence defined in your agreement.
Built around your existing stack
Connect the systems your business already runs on.
From general-purpose CRMs to industry-specific operating platforms, Kingstone designs workflows around supported APIs and the permissions your team approves.
Core business systems
CRM, sales & lead management
Customer records, pipeline stages, attribution, notes, and follow-up ownership.
Salesforce
HubSpot
Pipedrive
Microsoft Dynamics
Zoho CRM
HighLevel
Close
KeapVoice, messaging & contact center
Phone, SMS, email, WhatsApp, contact-center routing, and internal notifications.
Vapi
ElevenLabs
Twilio
WhatsApp
RingCentral
Aircall
Dialpad
ZoomScheduling, payments & commerce
Availability, appointments, payments, accounting, and customer transactions.
Google Calendar
Calendly
Shopify
Stripe
Square
QuickBooks
Xero
Acuity SchedulingAutomation, data & customer support
Bridge systems, trigger workflows, organize data, and coordinate customer support.
Zapier
n8n
Make
Airtable
Freshdesk
Power Automate
Zendesk
IntercomMarketing & customer lifecycle
Campaigns, lead nurture, attribution, audience data, and customer engagement.
Mailchimp
Klaviyo
ActiveCampaign
Marketo
Braze
Meta
Google Ads
Constant ContactProductivity & collaboration
Team communication, shared workspaces, documents, operational data, and internal routing.
Slack
Gmail
Outlook
Microsoft Teams
Notion
Google Sheets
monday
ServiceNowIndustry operating platforms
Home & field services
Dispatch, estimates, job records, technician schedules, and service operations.
ServiceTitan
Jobber
Housecall Pro
ServiceM8
FieldEdge
Workiz
Simpro
WorkWaveHealthcare, dental & wellness
Practice systems, patient scheduling, intake, records, and front-desk workflows.
Dentrix
Open Dental
Eaglesoft
NexHealth
athenahealth
Mindbody
Jane
ZenotiLegal, real estate & property
Matters, intake, properties, residents, leads, and relationship management.
Clio
Lawmatics
MyCase
AppFolio
Buildium
Follow Up Boss
Yardi
RealPageHospitality, dining & experiences
Reservations, guest messaging, tables, rooms, tours, activities, and availability.
Toast
OpenTable
SevenRooms
Guesty
Cloudbeds
FareHarbor
Checkfront
RezdyAutomotive & dealerships
Lead response, customer records, appointments, dealership operations, and follow-up.
CDK Global
Dealertrack
Tekion
DealerSocket
AutoRaptor
VinSolutions
Elead
Reynolds & ReynoldsEducation & learning
Student inquiries, enrollment, course access, learning systems, and support workflows.
Canvas
Blackboard
Moodle
Teachable
Thinkific
Kajabi
LearnDash
SchoologyPlatform availability and permitted actions vary by account, plan, API access, geography, and security requirements. We validate the exact integration path before implementation.
Official technology partnerships
Better voice AI, backed by the platforms behind it
Our partnerships with Vapi and ElevenLabs combine production infrastructure, natural voice quality, and Kingstone's implementation expertise in one accountable system—giving clients a better experience, faster deployment, and more efficient costs.
Additional platform partnerships
Partner-backed value across your operating stack
Through our relationships with Notion and Apollo, eligible clients can access partner benefits for the workspace and go-to-market layers Kingstone helps connect.
Partner benefits vary by account eligibility and are confirmed during scoping.
NotionPartner benefits for connected knowledge, processes, and team workspaces.
ApolloPartner benefits for prospecting, sales data, and go-to-market execution.One standard. Two markets.
Global implementation with a dedicated Croatian operation.
Engineering-led implementation
Technical leadership stays close to the work.
Adhiraj Hangal is an AI engineer and operator with over a decade of software experience. He studied Computer Engineering at 
USC and previously developed secure infrastructure at 
Charles Schwab used by financial professionals managing over $4 trillion in assets. He also built 
Ciela AI, Kingstone’s software for creating hyper-personalized AI demos prospective clients can try for themselves. Today, he sets 
Kingstone’s technical standard and remains directly involved from workflow discovery and architecture through launch and production review.