Device, diagnostics and scientific R&D firms almost always have a plan. What they rarely have is a plan anyone has reviewed. The pattern is consistent: a low-cost bundled 401(k) adopted early, equity compensation absorbing every subsequent benefits conversation, and no named fiduciary or documented process behind either. Meanwhile headcount grows fast enough to cross the 100-participant audit threshold without warning, the founders sit above the Roth income limits, and the technical staff you are recruiting are comparing your match against Edwards, Masimo and every well-funded competitor within twenty minutes of the 405.
Why this industry is different
The mandate treats every employer alike. The payroll realities underneath don't cooperate:
- Equity crowds out the qualified plan. Options, RSUs and a liquidity event dominate the founder conversation, and the 401(k) is treated as plumbing — until an engineer asks about the match, or a Department of Labor question arrives.
- The startup plan was never revisited. Adopted for cost and speed, it often carries a default fund lineup, no investment policy statement, no benchmarking file and no independent fiduciary named in writing.
- Rapid headcount growth trips audit thresholds. Going from 60 to 130 people in a funding year crosses the 100-participant line and brings an annual independent plan audit — on a finance team already carrying an investor reporting calendar.
- Highly-paid technical staff and a real hiring market. In Irvine, Tustin and Fountain Valley you are recruiting from a deep, mobile pool of engineers, regulatory and quality people. A visibly weak benefits package loses candidates before the second interview.
- Founders are above the Roth limits. Roughly $168,000 single and $252,000 married for 2026 — which means the people signing off on the plan get nothing personally from a Roth IRA structure and need pre-tax room instead.
What actually works
The chassis is usually already right: a safe harbor 401(k) removes ADP/ACP testing, which matters in a firm where a handful of highly-compensated engineers and founders would otherwise be throttled by whatever the rest of the staff defer. What is usually missing is everything around it. Name a fiduciary in writing — 3(38) discretionary or 3(21) advisory — adopt an investment policy statement, benchmark the all-in cost including fund-level expenses, and keep a written record of the decisions. If your plan committee minutes do not exist, you do not have a process; you have a product.
Beyond that, three design questions earn their keep in this sector. A Roth 401(k) source lets employees above the Roth IRA income limits — which in a device company is a lot of them — make Roth contributions anyway, at the $24,500 deferral limit rather than $7,500. After-tax contributions with in-plan conversion can add meaningful room for the highest earners where the census supports the testing, and it needs to be tested, not assumed. And for a profitable, established company with mature founders, a cash balance layer may allow substantially larger deductible contributions — the amount is actuarially determined against your census, not a number to quote in advance. Startups burning venture capital are usually not candidates for that; companies with real, recurring revenue sometimes are.
The SECURE 2.0 credits frequently cover most of the first three years' administration for employers under 50 staff — the formula, worked honestly — and if after the arithmetic CalSavers is still the right answer for your shop, we'll say so: the full comparison · run your own numbers.
On the cluster. Census records 641 establishments across scientific R&D and medical-equipment manufacturing in Los Angeles County (NAICS 5417 and 3391), but the sector's center of gravity for this region is Orange County — Irvine is one of the country's densest medical-device concentrations, with Edwards Lifesciences and Masimo headquartered there, and Tustin, Fountain Valley, Costa Mesa and Lake Forest carrying the supplier and contract-manufacturing base around it. In LA County the research end concentrates around City of Hope in Duarte and the Pasadena research corridor. Aduna Capital serves clients throughout California from its principal office in Norwalk and is not affiliated with any company named here.
By county
This guide is statewide. The county pages go local — where the industry physically clusters, which cities it sits in, and the municipal rules that stack on top of the state mandate.
Where this industry clusters near us
Medical Device & Biotech questions
We are venture-backed and pre-revenue. Does the mandate still apply?
Yes. CalSavers keys on W-2 employees in California, not on profitability, and every deadline including the 1–4 employee tier has passed. Burn rate is not an exemption. In practice most funded companies already run a payroll-bundled 401(k), which satisfies the mandate — the question then is whether that plan is being governed by anyone.
Our headcount is doubling this year. When does the plan audit hit?
The trigger is 100 participants with account balances at the beginning of the plan year, not 100 employees — a distinction that buys you time if eligibility is drawn sensibly. The 80-to-120 rule can also allow a plan that crosses 100 to keep filing on the small-plan schedule for a year in some circumstances. Either way it is a lead-time problem: audit firms book up, and the finance team should know two quarters ahead, not at filing.
Candidates ask what our match is. What is a defensible answer for a company our size?
We will not tell you what to match — that is a compensation decision with your own cash constraints attached. What we will say is that a safe harbor formula gives you a specific, quotable answer instead of a vague one, and that it does structural work at the same time by removing the testing that otherwise limits your founders and senior engineers. If cash is tight, a safe harbor match costs nothing for employees who do not defer, which is a different budget line from a contribution to everyone.
Our founders have most of their net worth in company equity. Does the 401(k) even matter to them?
It is the only piece of the picture that is not correlated to the outcome of the company. A pre-tax or Roth 401(k) source, profit sharing, and in the right circumstances a cash balance layer, move money into a diversified account each year regardless of what happens to the cap table. That is the argument — not returns, which nobody can promise, but concentration risk, which is the actual exposure most founders are carrying.
A plan designed around medical device & biotech — not around the average employer
We design around the census you actually have — turnover, seasonality, pay structure and all. Fifteen minutes, no charge, and a straight answer.