We build software products that ship.
MVPs, custom marketplaces, AI systems, and embedded software, built by the same senior team since 2019. Founded out of YC. Published pricing, hour ceilings, and a warranty most agencies won't put in writing.
Trusted by:
How can we help?
Different teams hire us for different reasons. Each gets its own front door: a first step, a “starting at” price, and proof from someone like you.
"I need senior engineers that can clear our backlog."
Senior full-stack, AI, and embedded engineers that will understand your repo and loop you in when needed. Otherwise, we integrate with your existing tools and processes to take things off your team's plate.
“…helped us deliver a production-ready application we could roll out to customers fast.” - Samir Sen
"I need this built, without getting burned."
Fixed-price wireframes, MVPs, and launch packages. Bring a napkin sketch or your ChatGPT/Lovable/Base44 prototype; we turn it into a production app with a warranty, in plain English the whole way.
“…like part of our company, even though they're outsourced.” - Shraysi Tandon, Kidsy
"Our operations run on spreadsheets and duct tape."
Portals, dashboards, and automations that replace brittle tools with calm, maintainable software. Fixed-price milestones, training for your staff, and support that speaks plainly.
“…work without surprises with well-set estimations and expectations.” - Victor Tang, Corros
"My marketplace is stuck, or stalled with the last dev."
Official Sharetribe Experts since 2023. New builds, migrations, and rescues; we take over codebases other agencies abandoned. First step is always a free codebase review with an honest verdict.
RareWaters: migrated in <3 months, then acquired, #1 on Google in its niche
"We shipped it, but nobody's finding us."
GTM engineering for teams with a product and no pipeline: content and AI-search visibility, CRM and attribution wired correctly, conversion pages that earn the click. Scoped in writing, delivered in weeks.
3.5× organic traffic in 16 months on a 2,000-page programmatic SEO program
"I built it with AI, and now it won't scale."
We take AI-generated and no-code prototypes to production: real architecture, tests, security, and deploys, without throwing away what already works. You keep the code and the momentum.
Free review first, then a documented, security-reviewed build with a 6-month warranty
"Our machine works. The software never shipped."
Embedded controllers, operator panels, and the companion software that has to keep up with both. Senior engineers who know what must not run inside the fast loop.
“We had previous sets of contractors who each made an attempt… They were abysmal failures. Horizon's Gorkem Bendin understands the tradeoffs…” - Andrew Ward, MK Products
"Our data is a mess, and the product shows it."
Cost data, credentials, and eligibility rules that were never designed to be read by a patient. We build the software layer that makes them legible.
“A high quality, responsive team with fast turnaround on sprints.” - Dan Lee, Co-Founder & CEO, Yura Health
"We need device software that survives review."
Connected-device architecture, firmware, and the companion app that talks to it - with the regulatory boundary stated plainly rather than dodged. You retain regulatory ownership, always.
Embedded controller and Android panel delivered for an ISO-certified manufacturer after two years of internal stalls
What we build.
SaaS, healthtech, manufacturing, e-commerce, marketplaces, and AI. Six ways in:
Build
MVPs & prototypes: sketch to production in 6–12 weeks
Custom marketplaces: Sharetribe Experts since 2023
AI & LLM systems: RAG, agents, voice; evals included
Extend
Senior engineers in your repo: backlog cleared, sprints kept
Recruitment-to-hire: trial proven engineers, then hire them
Takeovers & rescues: free codebase review, honest verdict
Maintain
Monitoring and alerting: we hear about it before your users do
Security patches and dependency upgrades: on a schedule, not a scramble
Six-month warranty, then care plans: bugs fixed, not re-billed
Advise
CTO-level advisory: from founders with exits
Accelerator sprints: YC, Alchemist, StartX demo-day pace
GTM systems: for products we've built
Integrate
Payments & payouts: Stripe Connect, split flows, reconciliation
Third-party APIs: webhooks, retries, nothing dropped silently
Data between tools: CRM, billing, and ops kept in sync
Automate
Spreadsheet steps replaced: reliable jobs, not brittle macros
AI-assisted workflows: with evals, so your team trusts them
Internal ops tooling: dashboards, alerts, audit trails
Shipped. Launched. Acquired.
A sample of what the same senior team has built since 2019: with the outcomes, not just the logos.
RareWaters
Migrated in under 3 months; acquired in 2025 after becoming the #1 Google result in its niche.
Kidsy
Stabilized the buyer and seller loop as the platform grew through real-world transaction edge cases.
Cuboh (YC S19)
Automated delivery-order routing into POS systems, reducing manual entry and related errors.
Arketa (YC S20)
Made deployments fast and repeatable so a three-engineer team could release to customers more quickly.
Basic.tech
Reduced manual processing overhead while making releases faster, more predictable, and more stable.
Patcom Medical
Turned approvals and policies into product features and improved trust through trainer verification.
Flair Labs (YC S22)
Shipped production AI agents with orchestration APIs, Kubernetes, monitoring, and CI/CD.
MK Products
A two-engineer team unblocked an embedded and Android program that had stalled for two years.
Yura Health
Built pricing-data ingestion and benefit logic that shows patients their likely out-of-pocket costs.
The six fears that kill agency projects, handled in the contract.
Every one of these is answered in writing before you sign. Not promised on a call.
"The team will churn."
The engineers who shipped Cuboh (YC S19) never left; they manage delivery today. Founders building together since 2011, at least two co-founders on every engagement.
"Offshore goes silent."
California leadership, US contract law, engineers overlapping 6am–6pm Pacific, direct Slack access. You contract with our US company either way.
"The invoice will grow."
Every contract states an hour range; the maximum is the most you'll ever pay for the agreed scope. Payments ride two-week sprints.
"They'll hold my code hostage."
All work happens in your GitHub org from day one, IP assigned under a US contract. No proprietary frameworks, no lock-in.
"They'll vanish after launch."
Monitoring, alerting, and backups set up before go-live, plus a 6-month warranty on every line we delivered. If it breaks, we fix it free.
"They'll say yes to everything."
We price trade-offs honestly and tell you when a feature isn't worth building yet, before you pay for it. Ask the founders we've talked out of scope.
Clear engagement pricing.
Two transparent hourly ladders plus fixed-scope marketplace packages. Estimates and clarification meetings are free; you pay only for approved development work.
New App & Marketplace Launches
$100 - $120/hr
Under 250 development hours/month: $120/hr
Over 250 development hours/month: $100/hr
Prototype, product design, full-stack build, launch support
Fixed-price options when scope is clear
6-month warranty on delivered code
Specialist Engineers
$150 - $200/hr
AI, embedded & cloud specialists $150–200/hr · Full-stack, front-end & back-end work is $100–120/hr
Written hour range with a hard ceiling
AI research, embedded/IoT, cloud efficiency
On-demand capacity, billed every two weeks
Direct engineer access; no account-manager relay
Interactive Product Wireframes
$2,500 - Fixed
14-day turnaround
$1,250 at signing · $1,250 on approval
User flows, transaction logic, provider onboarding
Launch-ready feature scope
Sharetribe Marketplaces - From Launch to Scale
$5,000–15,000
fixed scope
Launch in 30–60 days
Native Sharetribe capabilities
Milestone-based payment
Warranty on the delivered marketplace
Sharetribe - Launch With Custom Code
$5,000–30,000
Launch in 60–90 days
Custom features, integrations, workflows
Milestone-based payment
6-month warranty from day one
Migrate from WordPress / WooCommerce
$10,000–30,000
fixed scope
30–60 day migration
Scope locked before work begins
Listings, transaction flows, users, payments
A cleaner foundation that scales
Sanitized samples are available on request. Choose a document and include it in your estimate brief.
Sample contract
A plain-language agreement that makes scope, ownership, communication, and acceptance explicit.
Project drive folder
A clean shared folder for decisions, estimates, reports, designs, and delivery artifacts.
Monthly delivery report
A concise view of completed work, current priorities, risks, spend, and next steps.
Bi-weekly progress report
A focused checkpoint covering what changed, what is blocked, and what needs a decision.
Completion report
A durable handoff of shipped work, access, architecture notes, open items, and recommendations.
Teams who trust us to build with them.
Founders, CTOs, and operators we've shipped with: in their words.
"One of the most technically gifted leaders and engineering teams I've ever worked with. Swift executors and generally very likable people."
"They absolutely nailed it: on time, without busting the budget. They kept things smooth throughout."
"Horizon Labs feels like part of our company, even though they're outsourced. Proactive about getting things done."
"Vastly increased our visibility into technical workflows and capacity to achieve projected outcomes. Fast, reliable, exceptional integrity."
"We had previous sets of contractors who each made an attempt to get real-time-like performance from the Android front end. They were abysmal failures. Horizon's Gorkem Bendin understands the tradeoffs required for real-time embedded processing and is able to write Android code that partitions the expensive computations outside the fast loops and allows our code to offer timely information to the users of our product. Highly recommended."
"Very collaborative, with excellent communication and technical expertise, keeping me informed on each step through delivery."
“Horizon Labs is a high quality, responsive team with fast turnaround on sprints.”
“Horizon Labs has strong skills and experience with OpenAI, LLMs, API development, Kubernetes, and cloud deployment. Their engineering support helped us deliver a production-ready application we could roll out to customers fast.”
“Horizon Labs' team is really personable and genuinely cares about seeing our project succeed. Project management is excellent. The team is always on top of communicating and working on issues or needs as they arise.”
“We worked with another agency and faced surprising costs because of unthought estimations. Working with Horizon Labs enabled us to work without surprises, with well-set estimations and expectations.”
“This was my second startup with Horizon Labs and they proved to be the right partner again.”
“Very professional, allowed us to move faster than our in-house team could manage with growing backlogs. Very satisfied with their work.”
Tell us what you're building.
We scope it with you, then put it in writing.
Scoped by an engineer who'll actually build it. You get a written scope, an hour range with a hard ceiling, and an honest “we're not the right fit” if we're not. No drip campaign.