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Omanta

YCombinator

A research lab for one

Omanta is a personalized research lab for patients who have exhausted standard options, want to prepare proactively for recurrence, or are living with an unresolved diagnosis. We direct the full operational infrastructure, personnel, expertise, and technology of a large research program toward understanding and addressing the challenges of individual patients across oncology, rare disease, and undiagnosed conditions. For clinicians, we act as a collaborative partner, providing a living roadmap for ongoing patient care built on a rigorous and evolving scientific evidence base. We fully operationalize patient-specific research programs, covering tissue logistics, diagnostic follow-up, data integration, multiomic analysis, therapeutic strategy development, and more. Omanta brings context and clarity to complex cases, helping clinicians see more of the scientific picture as they decide how best to care for their patients.

Content discovery platform for Africa

We create the next gen digital media brands for African audiences. Our media properties include: OMGVoice and Bitnode

OMGPop

YCombinator

An independent flash game studio.

OMGPOP is a leading developer of social games for facebook, iphone and the open web. With games on multiple social networks as well as its own destination site, the company is recognized as a leader in creating real-time game experiences. Based in New York City, OMGPOP is funded by Spark Capital and Bessemer Venture Partners.

Omnara

YCombinator

The Control Plane for Agents

Omnara is an open-source, model-agnostic control plane for managed agents. One API to deploy, run, and control them. Self-host it, or use our managed cloud.

Omni

YCombinator

Fast, up-to-date answers for Sales & Support

Omni is an intelligent chrome extension to help teams manage their internal knowledge and keep it 100% up to date. It fits in the natural workflow, integrates with current knowledge sources, and provides bite-sized answers when needed.

omnidock

YCombinator

OS for global e-commerce expansion of brands & manufacturers

Expanding to other geographies and marketplaces is a massive growth lever for brands and manufacturers, but it’s complex and resource-intensive. Omnidock makes it effortless for merchants to sell on multiple marketplaces by acting as their merchant of record. Brands simply plug into our operating system, which reads their catalog, assesses marketplace eligibility, and auto-launches their products through our pre-vetted marketplace accounts. We handle all transactions on their behalf, removing the challenges and complexities of multi-marketplace selling

Edit and enhance online video. Acquired by Google in July 2008.

Omnisio was founded in 2007 by Ryan Junee, Simon Ratner and Julian Frumar, and was subsquently acquired by YouTube in July 2008. Omnisio enabled users to annotate and share videos from any website, and enabled markup of the structure within a video. On May 13, 2008, Omnisio launched a slide-syncing tool using SlideShare for slides and a host of video services.

OmniVirt is the leading VR Advertising platform for brands and…

OmniVirt is 360° Virtual Reality advertising platform for brands and publishers. Audiences can view 360° content with just one tap of their fingertip on smartphones, tablets and websites. No app installation or VR headset required. HTML5 / VAST complaint. Our company is specialize in mobile formats, the network optimizes revenue for publishers and serves billions of ad impressions in more than 200 countries.

Cactus

YCombinator

All-In-One AI Growth Partner. Built for Trades.

HVAC, plumbing, roofing, and electrical companies spend $3K–$25K every month making the phone ring - then lose 10–20% of those leads to slow response times, missed calls, and zero follow-up. The revenue was already there. It just walked out the back door. Cactus closes that gap on both sides. Inbound: Every call answered in under 60 seconds, 24/7 qualified and booked directly into Housecall Pro, Jobber, FieldEdge, or ServiceTitan. No voicemails. No missed jobs. Outbound: Warm leads, dormant customers, and unworked estimates get proactively contacted - driving repeat jobs, cross-sells, upsells, and referrals without adding headcount. The result: 20–30% more jobs from the ad budget you're already spending. What that looks like in practice: → Roofing company, NC | $299K collected in 10 weeks. $1.41M pipeline created. 199× ROI. $48K of that revenue came in after hours — while the office was closed. → Plumbing & HVAC company, UT | $180K confirmed revenue in 4 months. 90× ROI. 58% of captured leads came after hours — jobs that would have gone to voicemail now go straight into the CRM. → General contracting company | Grew from 11 jobs/month to 72 in a single month — 555% growth. $2.09M invoiced. $1.82M collected. Zero new hires. → Roofing & siding company | $228K pipeline in 75 days. 92% of calls converted to hot leads. $804K in net sales during the Cactus period. 49 spam calls filtered automatically — hours of staff time saved. → Commercial signage company | $398K pipeline generated in 10 weeks. 111× ROI on $3,597 invested. Grew from 0% to 30% share of total company pipeline in a single month. If we don't add revenue, we don't stay. That's the only way this works. The $150B home services industry is still running on voicemail and spreadsheets. We're building the system that changes that - one answered call at a time.

Finding the right cancer drug for each patient.

Oncobox believes that many late-stage cancer patients are dying prematurely because doctors lack a data-driven tool to help them decide which drugs currently on the market would most effectively fight individual patients’ specific cancers. That’s where Oncobox comes in. Oncobox is low-cost personalized genetic profiling to help doctors decide which drug to use. In a recent study conducted by leading cancer researchers in Europe and Asia on 900 patients with various late-stage cancers, Oncobox increased the effectiveness of targeted therapies from 25% to 64%. How does Oncobox work? Over 150 targeted cancer drugs are currently on the market. But deciding which of these drugs to give to late-stage cancer patients is not a simple task. Cancer doctors are in a race against the clock. They don’t always know which medication will be most effective for their patients. Because these drugs are expensive and typically have significant side effects, they can’t just try them all. Because of these barriers, targeted cancer therapies are effective only 25% of the time, and 70% of patients with late-stage cancers die due to the toxic side effects of ineffective drugs. Oncobox Dx analyses tumor DNA, RNA, and molecular pathways using algorithms to distinguish which molecular targets are the most crucial for individual cases. Doctors receive a clinically actionable report that shows them which drugs are likely to be most effective on the patient. We actively seek partners from pharma, hospitals/clinicians, payers, and genomic centers. Feel free to contact us at hello@oncobox.com. Our team and the scientific advisory board consisting of leading scientists and researchers from UCLA, Stanford, Johns Hopkins University, Boston University, Tufts University, and Rutgers University.