California Microbusiness (MB) Certification: The $6M Designation Inside the DGS Small Business Program
In California, "Microbusiness" (MB) is not a separate certification you apply for — it is a designation the Department of General Services (DGS) assigns automatically, for free, to a certified Small Business (SB) whose average annual gross receipts are $6 million or less, or that is a manufacturer with 25 or fewer employees. This guide explains exactly what the MB designation is, the $6M threshold versus the $19M Small Business cap, who qualifies, the bid-preference and set-aside benefits it unlocks, and how MB compares to SB and SB-PW.
Last reviewed June 2026 against the California Department of General Services Small Business program (dgs.ca.gov) and the CaleProcure certification portal. The MB designation sits within the Small Business program authorized by Cal. Gov. Code §§14835–14843. Size standards CPI-adjust periodically; always confirm the current $6M microbusiness threshold with DGS before relying on it.
1. What Is the Microbusiness (MB) Designation?
A Microbusiness (MB) is the smallest tier of California's state Small Business (SB) program, administered by the Department of General Services (DGS). The most important thing to understand is what MB is not: it is not its own certification, it is not a separate application, and there is no separate "MB form" in CaleProcure. Instead, MB is a designation layered on top of an existing Small Business certification.
When you apply for Small Business certification through CaleProcure and DGS approves you, the system checks your reported gross receipts and employee count. If your firm is below the microbusiness size limit, DGS automatically flags your record as a Microbusiness. You don't pay extra, file anything extra, or wait through a second review. The MB flag rides along with your SB certification.
Like the rest of the Small Business program, the MB designation does not require the owner to demonstrate social or economic disadvantage. It is purely a size classification. That makes MB completely different from the federal DBE program, which requires an individual disadvantage narrative and a personal net worth test. MB is a state-contracting preference based only on how small your business is.
In one sentence: Every Microbusiness is a certified Small Business, but not every Small Business is a Microbusiness — only the smallest ones (under $6M, or manufacturers with 25 or fewer employees) earn the MB flag.
2. The $6M Threshold vs the $19M Small Business Cap
The line between a Microbusiness and a "regular" Small Business is the gross-receipts threshold. Both numbers are flat California figures set by DGS — they are not the NAICS-code-based SBA standards, and they are not the federal DBE size cap.
| Classification | Gross-receipts cap (3-yr avg) | Manufacturer test |
|---|---|---|
| Microbusiness (MB) | $6,000,000 or less | 25 or fewer employees |
| Small Business (SB) | $19,000,000 or less | 100 or fewer employees |
| Small Business — Public Works (SB-PW) | $46,000,000 or less | 200 or fewer employees |
The receipts figure is the firm's average annual gross receipts over the previous three tax years, counting affiliates. A new firm with less than three years of returns uses the receipts it does have. The manufacturer route is an alternative: a manufacturing firm with 25 or fewer employees qualifies as an MB even if its receipts are somewhat higher, which recognizes that manufacturers carry high material costs that inflate revenue without making the firm large.
Where firms fall: a consulting firm averaging $4M in receipts is a Microbusiness. A construction firm averaging $12M is a Small Business but not a Microbusiness. A firm averaging $25M is over the standard $19M SB cap and would instead look to SB-PW if it performs public works. For the full breakdown of every California size figure and how they changed, see California size limits in 2026.
3. Who Qualifies as a Microbusiness
To carry the MB designation, your firm must first qualify as a California Small Business, and then meet the smaller microbusiness size limit. In practice, that means satisfying all of the following:
Certified (or eligible) as a DGS Small Business
The MB flag only exists on top of an active Small Business certification. If you are not yet an SB, you start with the Small Business application in CaleProcure — there is no standalone microbusiness pathway.
Under the $6M receipts cap OR a small manufacturer
Either your three-year average annual gross receipts are $6 million or less, or you are a manufacturer with 25 or fewer employees. Meeting one of the two is enough.
Independently owned and operated
As with all SB certification, the firm must be independently owned and operated and not dominant in its field. Affiliate revenue counts toward the receipts test, so you cannot shrink under $6M by splitting one business into several.
Principal office in California
The business's principal place of business must be in California, the same residency rule that governs the underlying Small Business certification. Out-of-state firms are not eligible.
No disadvantage requirement and no net-worth limit. Unlike the federal DBE program, MB does not look at the owner's race, gender, background, or personal net worth. It is a pure size classification — any qualifying small firm, regardless of who owns it, can be an MB.
4. Benefits of the MB Designation
A Microbusiness gets everything a Small Business gets, plus more. The MB flag is strictly additive — it never reduces your preferences.
5% Bid Preference (same as SB)
Certified MBs receive the 5% small-business bid preference on applicable state solicitations, making your price more competitive against larger firms.
Microbusiness Set-Asides
Some state contracts and procurements are reserved specifically for microbusinesses, eliminating competition not only from large firms but from larger small businesses too.
Statewide Microbusiness Goal
California directs a share of state contract dollars to microbusinesses specifically, on top of the broader 25% small-business goal — creating dedicated demand for MB vendors.
Subcontracting Demand
Prime contractors meeting small-business participation commitments often look for the smallest certified firms, so the MB flag can make you a more attractive subcontractor.
Greater Visibility in CaleProcure
Your MB status is searchable in the state's CaleProcure system, where agencies and primes filter for microbusiness vendors.
Zero Extra Cost or Paperwork
The MB designation is free and automatic. You get the additional access without filing a separate application or paying any fee.
Why the set-aside matters: A regular Small Business competes against firms up to $19M. Inside a microbusiness set-aside, an MB firm only competes against other firms under $6M — a much narrower, more level field for the smallest contractors.
5. How You Get MB (It's Automatic & Free)
Because MB is a designation rather than a certification, there is no "apply for MB" button. You simply apply for Small Business certification and let DGS classify you. Here is the full path:
- Create a CaleProcure account. Register at caleprocure.ca.gov, the state's procurement portal for vendor registration and certification. See our CaleProcure walkthrough if you are setting up an account for the first time.
- Complete the Small Business application. Select Small Business as the certification type and enter your three-year gross receipts and employee counts honestly. These are the exact figures DGS uses to decide whether you get the MB flag.
- Upload supporting documents. Attach your federal tax returns (which substantiate the gross-receipts figure), business-formation documents, and proof of your California principal office.
- DGS reviews and classifies you. On approval, DGS certifies you as a Small Business. If your reported receipts are $6M or less (or you are a manufacturer with 25 or fewer employees), DGS automatically adds the Microbusiness designation — no extra step, no extra fee.
- Confirm the MB flag in your record. Open your certification details in CaleProcure and verify that both "Small Business" and "Microbusiness" appear. If you believe you qualify but the MB flag is missing, contact the DGS Office of Small Business and DVBE Services to have your receipts reviewed.
Cost: There is no fee for the Small Business certification or the Microbusiness designation. No third party can legitimately charge you to "add" MB status — it is assigned by DGS automatically the moment your receipts qualify.
Not Sure If You Qualify?
An experienced advisor can review your ownership structure, net worth, and business size to determine which certifications you may be eligible for.
Get a Free Eligibility Assessment6. MB vs SB vs SB-PW: Where Your Firm Fits
All three are California DGS state classifications, not federal DBE. They form a ladder by firm size. Use the table to place your business:
| Feature | MB (Microbusiness) | SB (Small Business) | SB-PW (Public Works) |
|---|---|---|---|
| What it is | Designation inside SB | Base certification | Separate higher tier |
| Receipts cap | $6M | $19M | $46M |
| Manufacturer / employee test | 25 or fewer employees | 100 or fewer employees | 200 or fewer employees |
| Separate application? | No (auto-assigned) | Yes (CaleProcure) | Yes (CaleProcure) |
| 5% bid preference | Yes | Yes | Yes |
| Microbusiness set-asides | Yes | No | No |
| Best for | Smallest firms (<$6M) | Most small firms | Large public-works contractors |
| Cost | Free | Free | Free |
The practical takeaway: you never choose between MB and SB — you apply for SB, and MB is added if you qualify. The real decision is between the standard Small Business program (which carries the MB designation for the smallest firms) and the separate SB-PW certification for large construction and public-works firms whose pass-through material and subcontractor costs push them above the $19M SB cap.
For a side-by-side look at the state programs alongside the federal DBE/DVBE credentials, see our DBE vs SBE vs DVBE comparison guide.
7. How to Check (or Keep) Your MB Status
Because the MB designation is tied to your Small Business certification and to your size, it can appear or disappear as your firm changes. To stay on top of it:
- Verify the flag in CaleProcure. Log into caleprocure.ca.gov and open your certification record. The MB designation displays alongside your Small Business certification when you qualify.
- Recertify on schedule. The Small Business certification must be kept current, and your size is re-checked at recertification. If your three-year average receipts grow past $6M, DGS will keep your SB certification (up to $19M) but drop the MB flag.
- Report material changes. Notify DGS of significant changes in revenue, employee count, ownership, or address. A firm that crosses the $19M cap entirely may need to move to SB-PW if it performs public works.
- Watch the threshold over time. Like the other DGS caps, the $6M microbusiness figure can be adjusted for inflation. Confirm the current number with DGS before assuming you are over or under the line.
8. Frequently Asked Questions
Q:Is Microbusiness (MB) a separate certification from Small Business (SB)?
No. MB is not a separate certification or application. It is a designation within the California DGS Small Business program. When you apply for and receive SB certification through CaleProcure, DGS automatically adds the MB designation if your firm meets the smaller microbusiness size limit — $6 million or less in average gross receipts, or a manufacturer with 25 or fewer employees.
Q:Is California Microbusiness (MB) certification free?
Yes. There is no fee for the MB designation and no fee for the underlying Small Business certification — both are issued by DGS through CaleProcure at no cost. No third party can legitimately charge you for the MB flag itself; it is added automatically the moment your reported receipts qualify.
Q:How do I know if my business qualifies as a Microbusiness?
Your firm qualifies if it is a certified California Small Business AND either (1) its three-year average annual gross receipts are $6 million or less, or (2) it is a manufacturer with 25 or fewer employees. If you already hold SB certification, check your record in CaleProcure — the MB flag appears there automatically when you meet the threshold. You do not have to request it.
Q:Does the MB designation help on public works contracts?
Yes. On state public works contracts that use the Small Business program, an MB firm receives the same 5% small-business bid preference as any certified SB, plus eligibility for microbusiness-specific set-asides. Note that very large public works firms exceeding the $19M SB cap use the separate SB-PW certification ($46M cap); the MB designation lives inside the standard Small Business program, not SB-PW.
Q:What is the difference between MB, SB, and SB-PW?
All three are California DGS state classifications, not federal DBE. MB is a designation inside the Small Business program for firms with $6M or less in receipts (or manufacturers with 25 or fewer employees). SB covers firms up to $19M (100 employees for manufacturers). SB-PW is a higher tier for construction and public-works firms with a $46M cap and 200-employee limit. Every MB firm is also an SB; not every SB is an MB.
Q:Does Microbusiness status qualify me for federal DBE contracts?
No. MB is a California state designation inside the DGS Small Business program and applies only to State of California contracts. It does not qualify you for federally funded USDOT transportation contracts, which require separate DBE certification through the California Unified Certification Program (CUCP).
Note: The California Microbusiness designation and its $6M threshold are set by the Department of General Services under the Small Business program (Cal. Gov. Code §§14835–14843) and may change. This page is an independent resource, not a DGS site; confirm current requirements and apply for Small Business certification at caleprocure.ca.gov, or review program details at dgs.ca.gov.
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