Filings through .
Northwestern Mutual Investment Serv
Matched across 146 name variants in the filings
Northwestern Mutual Investment Serv summary
Northwestern Mutual Investment Serv appears on 460 retirement plans in Form 5500 Schedule C filings through plan year 2024. Those plans hold $18.5B in assets for 1,420,935 participants. The median client plan holds $14.3M. Most client plans are sponsored in GA, IL and NY. The largest clients by plan assets are Paychex Retirement LLC, Taft Stettinius & Hollister LLP and Futureplan Fiduciary Services, LLC. Plans reported $14.1M in direct and indirect compensation paid to Northwestern Mutual Investment Serv. The median is $25K per plan.
- Participants
- 1,420,935
- Median plan assets
- $14.3M
- Median plan participants
- 281
- Median fees per plan
- $25K
- Schedule C direct + indirect
Top 25 client plans by assets
Latest Form 5500 filing per plan through 2024
- NYParticipants 759,234
- OHParticipants 2,235
- MAParticipants 200,161
- GAParticipants 15,883
- IAParticipants 163,954
- Thompson Coburn LLP$529MMOParticipants 1,146
- IAParticipants 1,856
- Newport Group, Inc.$306MPAParticipants 15,010
- VAParticipants 9,802
- TNParticipants 2,018
- Sew-Eurodrive, Inc.$261MSCParticipants 1,277
- KYParticipants 2,403
- WVParticipants 1,058
- ILParticipants 3,121
- CAParticipants 3,195
- Cor Partners, Inc.$162MGAParticipants 1,595
- GAParticipants 1,883
- ILParticipants 186
- Artivion, Inc.$123MGAParticipants 1,142
- TNParticipants 2,193
- PAParticipants 291
- DCParticipants 1,984
- Ellsworth Corporation$99.0MWIParticipants 883
- NYParticipants 1,090
- Lindsay Chevrolet, LLC$91.5MVAParticipants 988
Top client states
- GA67 plans
- IL34 plans
- NY29 plans
- MI24 plans
- WI24 plans
Frequently asked questions
- Who uses Northwestern Mutual Investment Serv?
- 460 retirement plans list Northwestern Mutual Investment Serv as a service provider on Schedule C of Form 5500. The largest clients by plan assets include Paychex Retirement LLC, Taft Stettinius & Hollister LLP, Futureplan Fiduciary Services, LLC, Saia Motor Freight Line, LLC and Principal Life Insurance Company. Most client plans are sponsored in GA, IL and NY.
- How many plans does Northwestern Mutual Investment Serv serve?
- Northwestern Mutual Investment Serv serves 460 retirement plans with $18.5B in plan assets and 1,420,935 participants, based on the latest Form 5500 filings through 2024.
- What does Northwestern Mutual Investment Serv charge?
- Plans reported $14.1M in total Schedule C compensation paid to Northwestern Mutual Investment Serv. The median plan paid $25K. Fees vary with plan size and the services each plan buys.
Analytics
Market position · 2024
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- 5-year plans-served trajectory
- Customer-base shape
- Median fees per service
- Competitor overlap
- Plans won and lost
- Top plans by assets
Fund lineups on plans this firm keeps
Large plans that name Northwestern Mutual Investment Serv as recordkeeper and list their funds in their filing.
Top managers in these lineups
| Manager | Plans |
|---|---|
| Vanguard | 15 |
| Capital Group | 10 |
| Fidelity (FMR) | 10 |
| T. Rowe Price | 6 |
| JPMorgan | 5 |
Target-date series
Covers 71,410 large plans that list their funds in their annual filing. Updated Nov 6, 2026. Shares describe these plans, not the whole market.