Secure the business. Build what runs it.
ThinkOpen is the technology team behind trust administrators, builders, restaurants and professional firms across Southern California. We run your IT, defend it the way an attacker would test it, and write the software your business runs on.
15 minutes with an engineer, not a salesperson.

Trusted by businesses across Southern California.
One team for the whole stack.
Most small businesses juggle an IT provider, a security vendor and a developer who never talk to each other. We are all three, held to one standard, with one number to call.
Security that assumes breach.
We map your real attack surface and rank what we find by how exploitable it is and what it would cost you, then fix it and prove it stays fixed.
- Security audits and pentest coordination
- Endpoint, identity and Microsoft 365 hardening
- Evidence for lenders and cyber insurers
Managed IT that sees it first.
Helpdesk, on-site support and monitoring from engineers who know your office by name. Most problems are caught before anyone has to call.
- Helpdesk and on-site support
- Monitoring, patching and drift detection
- Backup, continuity and disaster recovery
Software that earns daily use.
When the right tool does not exist, we write it. Client portals, internal apps and AI that does the work your team should not do twice.
- Custom apps and client portals
- AI copilots and workflow automation
- ERP, CRM and Microsoft 365 integration
We built the tools we couldn't buy.
Every product here started as a problem we hit running IT for real businesses. We wrote the tool, put it to work on our own clients, and kept improving it every week.
Every server. Every switch. Watched.
Arqos watches the infrastructure a small business runs on: servers, switches, firewalls, printers, UPS units and hypervisors. It stays quiet until something needs a person, then tells you what broke, why, and what is using it. It only observes. It never pushes a change to a client machine.
- Down detection in about two minutes, resolved automatically when it recovers
- One inbox, split into what needs you and what is already known
- Names the app behind a full disk or a busy CPU
- Matches installed software against known-exploited vulnerabilities
- Plain-English health for switches, printers, UPS and ESXi hosts
- Uptime and evidence reports an insurer can read
Why we built it
Monitoring tools buried us in charts and asked for remote-control rights on every server. We wanted one that watches, says only what matters, and can't be turned against the client it protects.
Instead of
Where Arqos differs: read-only by design, and exception-first. It tells you what needs you, not another dashboard to watch.
Onboarding and security posture for Microsoft 365 and Google Workspace.
Kovah onboards a business onto Microsoft 365 or Google Workspace, then keeps watching it. It checks the tenant against a security baseline every week, watches email authentication every night, and flags a lapsing subscription days before the email goes dark.
- Continuity Watch: catches lapsing or suspended licenses before mail stops
- Weekly drift audit against a security baseline, exported as a PDF
- SPF, DKIM and DMARC watched nightly, with an alert only when something regresses
- Google Workspace audit, admin-role review and user provisioning
- Microsoft 365 onboarding run from one repeatable checklist
- Every finding cites its evidence
Why we built it
A client's Microsoft subscription lapsed and their email went dark with no warning. We built the watch that would have caught it, then turned our whole onboarding checklist into the product.
Instead of
Where Kovah differs: one tool for Microsoft 365 and Google Workspace, onboarding and posture together, with evidence behind every finding.
Helpdesk and IT operations, in one place.
Okvia is the system our clients use when they need us. Tickets, SLAs, devices, time and the client portal live together, so nothing falls between tools. It runs ThinkOpen's own support desk every day.
- SLA clocks that pause while a ticket waits on the client
- Email replies thread into the right ticket automatically
- Client portal with secure sign-in and two-factor authentication
- Device inventory with an honest last-seen
- Time tracked into hour buckets and draft invoices
- AI-drafted replies that a person reviews before sending
Why we built it
Our tickets, SLAs, time and client portal lived in separate tools that never agreed with each other. We built one system, and we answer every ticket in it.
Instead of
Where Okvia differs: SLA, devices, time and the client portal in one lighter product, shaped by a team that works in it all day.
The AI accountant for the self-employed.
involy is for consultants, contractors and freelancers whose income arrives in lumps. It sends the invoice, collects the payment, and budgets around what you are owed, not just what has landed in the bank. Ask it a question about your books in plain English.
- Invoices with online card and bank (ACH) payment
- A safe-to-spend number that sets aside your tax reserve first
- Ask involy: plain-language answers about your own books
- Proposals with e-signature
- Contractor W-9 collection and referral fees
- A native Mac app alongside the web
Why we built it
We built it for our own books. Budget apps only see the cash already in the bank, and accounting software assumes you are a bookkeeper. We wanted one app that knows what you are owed and what is safe to spend.
Instead of
Where involy differs: it budgets against unpaid invoices, and you never need a chart of accounts.

A trust administrator's estate, held to a fiduciary standard.
A Southern California trust administration firm manages beneficiary data and trust accounts for clients who expect nothing to go wrong. We brought the whole estate onto one managed baseline and one evidence trail that their lenders and insurer can read without a meeting.
For businesses where trust is the product.
We go deep in a few industries rather than shallow in all of them, so the questions your lender, insurer or health inspector asks are ones we've already answered.
Financial and trust administration
Fiduciary data, lender due diligence and cyber-insurance questionnaires, answered with evidence.
Lender questionnaires · insurance renewals · beneficiary data
02Professional services
Confidentiality for law and advisory firms, without slowing the partners down.
Document confidentiality · secure remote work · retention
03Construction and property
Crews in the field, bids in the office, and lenders asking how both are protected.
Field devices · bid security · office network
04Hospitality and restaurants
Point of sale, guest Wi-Fi and back-office systems that hold up through the dinner rush.
POS and payments · guest Wi-Fi · back-office PCs
05Industrial and agriculture
Remote sites, rugged networks, and Microsoft 365 renewals that never lapse.
Remote-site networks · Microsoft 365 continuity · rugged hardware

No pitch deck. A conversation, then evidence.
- 1
A 15-minute call
Tell us what is keeping you up at night. We will tell you honestly whether we are the right fit.
- 2
An evidence-based audit
We look at your environment the way an attacker would and rank every finding by business impact.
- 3
A roadmap you own
A prioritized plan with real costs. Hand it to us or to anyone else. It is yours either way.
What we're reading, and what we think.
We read the security and AI news every morning so you don't have to. Here is what matters for a business your size, in plain English.
Microsoft 365 Security: What SMBs Are Missing
Your team lives in M365 — but the default settings leave doors wide open. Here's what to lock down before an attacker finds it first.
This week, in plain English
The Hacker News · Oct 21PHP2Shell: Two Unpatched Critical PHP RCE Flaws (CVSS 9.2) Trigger Emergency Security AlertOur take: Two CVSS 9.2 PHP flaws allow remote code execution — any business running PHP-based sites or apps needs to patch immediately.The Hacker News · Oct 16Hackers Use Compromised ConnectWise Credential to Sign In to 173 Microsoft 365 TenantsOur take: A compromised single credential gave attackers access to 173 M365 tenants, showing how third-party tool credentials can cascade into widespread breaches.Dark Reading · Oct 23Trust Is Not What It Seems — And Fraudsters Are Counting on ItOur take: Criminals are calling your help desk with AI-assisted social engineering — train staff to verify identity before resetting any credentials.All insightsThe ThinkOpen Brief
Five things worth knowing, every Monday. Written for owners, not engineers.
Talk to an engineer this week.
Fifteen minutes, no slides. You will leave with at least one thing worth fixing, whether or not we work together.
See what an attacker sees.
Enter your domain. We will grade your email authentication, TLS and public DNS, and send you the full report.